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1 Diffusion creep - Wikipedia
https://en.wikipedia.org/wiki/Diffusion_creep
Diffusion creep is caused by the migration of crystalline defects through the lattice of a crystal such that when a crystal is subjected to a greater degree of ...
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2 11 Creep - Springer Link
https://link.springer.com/content/pdf/10.1007%2F978-3-540-73448-2_11.pdf
This sug- gests that diffusion is important in creep and also explains why the onset of creep depends on the homologous temperature T/Tm: High-melting ...
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3 Effect of Stress on Creep Behavior of Single Crystal Alloy ...
https://www.hindawi.com/journals/ijp/2020/8844874/
When the stress increased from 180 MPa to 230 MPa, the creep life ... out at 980°C. Due to the higher temperature, the diffusion of atoms in ...
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4 CREEP EFFECTS IN DIFFUSION BONDING OF OXYGEN ...
https://cds.cern.ch/record/1552918/files/CERN-THESIS-2013-046.pdf
diffusion is closely related to crystallographic defects. In single-component metals the dominant mechanism of diffusion is the vacancy ...
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5 Creep | Elements of Metallurgy and Engineering Alloys
https://dl.asminternational.org/technical-books/book/94/chapter/2104799/Creep
Subsequent sections address creep life prediction and creep-fatigue ... Since the elevated-temperature strength of metals is closely related to their ...
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6 Exceptional increase in the creep life of magnesium rare-earth ...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722870/
This microalloying effect raises fundamental questions regarding creep deformation mechanisms. ... We report that increased vacancy diffusion ...
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7 Creep (Deformation) in Materials
https://web.iit.edu/sites/web/files/departments/academic-affairs/academic-resource-center/pdfs/MaterialsCreep.pdf
Detail experimental ways to determine creep. ... Provides prediction of life expectancy before service. ... Load (Similar to graph seen previously).
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8 Field theory and diffusion creep predictions in ... - ResearchGate
https://www.researchgate.net/publication/277134264_Field_theory_and_diffusion_creep_predictions_in_polycrystalline_aggregates
A similar approach for modeling diffusional creep was pursued recently by Villani et al. [15] . The model proposed also included creep ...
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9 Creep Deformation of Metals (all content) - DoITPoMS
https://www.doitpoms.ac.uk/tlplib/creep/printall.php
A similar dependence on temperature and stress is observed to that for Coble creep. The diffusion of atoms in one direction can be more easily pictured as the ...
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10 8. time dependent behaviour: creep
http://courses.washington.edu/me354a/chap8.pdf
It is important to note that atomic mobility is related to diffusion which can be ... which are diffusion-rate dependent, will have an effect on the life.
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11 diffusion creep | Encyclopedia.com
https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/diffusion-creep
diffusion creep Deformation as a result of the migration of atoms along a stress gradient. It usually becomes important as the temperature rises close to ...
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12 Creep Deformation and Fracture Processes in OF and OFP ...
https://inis.iaea.org/collection/NCLCollectionStore/_Public/42/022/42022559.pdf
of minimum creep rates and creep lives for Oxygen free copper (OF) and OF to which ... In diffusional creep processes vacancies generated close to grain ...
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13 The Combining Effect of Creep Flow and Surface and Grain ...
https://etd.ohiolink.edu/apexprod/rws_etd/send_file/send?accession=osu1117645391&disposition=inline
This leads to the prediction that the material life under a cyclic ... diffusion controlled process), the cavity shape will be similar to a crack because ...
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14 The physics of high temperature creep in metals - IOPscience
https://iopscience.iop.org/article/10.1088/0034-4885/29/1/301
The bottom range includes the so-called logarithmic creep and the top range creep by diffusion, which is somewhat similar to flow in liquids. Both are quite ...
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15 Creep fracture by coupled power-law creep and diffusion ...
https://www.tandfonline.com/doi/abs/10.1179/msc.1982.16.10.465
Over a wide range of stress and temperature voids grow predominantly by diffusion when they are small and by power-law creep when they are large ...
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16 What is Creep Strength (Creep Limit)? - Matmatch
https://matmatch.com/learn/property/creep-strength
The rate of deformation due to creep is called creep rate. ... including dislocation creep, diffusion creep (bulk diffusion or grain boundary diffusion), ...
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17 The modelling of damage due to diffusional creep in high ...
https://open.uct.ac.za/bitstream/handle/11427/22961/thesis_ebe_2016_weyer_royden%201.pdf?sequence=1&isAllowed=y
the creep strain rate is similar to that of the diffusion rate. ... In real life situations the grain boundaries have different orientations to the ...
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18 Creep modelling of particle strengthened steels - DiVA Portal
http://www.diva-portal.org/smash/get/diva2:12304/FULLTEXT01.pdf
represents in time the major part of the creep life. ... energy of creep of pure metals is often close to the activation energy of self diffusion,.
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19 Creep Behavior of Diffusion-Welded Alloy 617 - MDPI
https://www.mdpi.com/2075-4701/11/5/830
In brazing and transient liquid phase bonding, a homogenization heat treatment may result in microstructure and mechanical properties similar to ...
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20 Creep mechanisms - YouTube
https://www.youtube.com/watch?v=7eXKvQvrwx4
Jul 28, 2017
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21 Creep Mechanisms vis-à-vis Power Law vs. Grain Boundary ...
https://papers.phmsociety.org/index.php/phmconf/article/download/2543/1503
based prognostics system development using a life cycle management-expert system (LCM-ES) ... dependency with stress follows a power law close to diffusion.
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22 Viscous creep in metals - JSTOR
https://www.jstor.org/stable/24100561
performed at temperatures close to the melting point. Jones4 analysed the data and showed that the creep be- ^ ... haviour corresponded to diffusion creep.
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23 Initial and Steady-State Creep - Wiley Online Library
https://onlinelibrary.wiley.com/doi/pdf/10.1002/pssa.2211320108
creep rate, d,, and the creep rupture life, t,, via the well-known Monkman-Grant ... creep is close to the activation energy for volume diffusion, ...
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24 Module #23 - Weaver Research Group
https://weavergroup.ua.edu/uploads/4/8/9/0/48901279/n23.pdf
self-diffusion. Vary with σ & T due to changes in the creep mechanism. A′ & n are material constants. Q c is the creep activation energy.
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25 56.Quantification of Creep Rate Change and Life Prediction ...
https://www.lm-foundation.or.jp/english/abstract-vol44/abstract/56.html
When the activation energy of creep is similar to that for diffusion, the constant, A, includes concentration dependence of the creep rate, and can be ...
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26 Creep Behaviour in Ti-based Alloys - De Gruyter
https://www.degruyter.com/document/doi/10.1515/HTMP.2005.24.5.323/pdf
energy at different stress levels, but, for low nickel content, apparent activation energy is similar to that of intrinsic lattice self diffusion in alpha ...
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27 precipitate interactions on creep resistance - Cell Press
https://www.cell.com/cell-reports-physical-science/pdfExtended/S2666-3864(21)00434-3
The existing creep-life predictions often belittle the ... weight ratio, have been closely tied to their high-temperature behavior.3,4 After ...
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28 Lecture #19 Creep in Metals: - Tests required to evaluate high ...
https://www.uobabylon.edu.iq/eprints/publication_4_29484_1037.pdf
(i) High Temperature Tensile Test: Similar to a short term room temperature test, ... their own weight, with a creep life to rupture of about 1000 hours.
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29 dislocation creep mechanism: Topics by Science.gov
https://www.science.gov/topicpages/d/dislocation+creep+mechanism
The vacancy diffusion model takes internal stresses by dislocations and ... For creep at 1800 F, similar results were obtaind for stresses above 7 ksi, ...
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30 Creep and Creep Failures
https://www.nationalboard.org/Index.aspx?pageID=181
Thus, the code recognizes that over the operating life, some creep ... For stainless steels, the microstructures are similar in that the failure is by ...
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31 Influence of grain size, solute atoms and second-phase ...
http://www.dunand.northwestern.edu/refs/files/sherbytaleff.pdf
These are diffusion-controlled dislocation creep, grain- ... strain, are plotted with high-temperature data from similar alloys [63] as creep rate ...
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32 Creep cavitation in metals
https://edisciplinas.usp.br/pluginfile.php/4536123/mod_resource/content/1/Kassner.creep.cavitation.1-s2.0-S0749641902001110-main.pdf
creep fracture reviews that omitted important developments relevant to creep ... subsequently derive for diffusion-controlled cavity growth are similar.
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33 A Modern Philosophy for Creep Lifing in Engineering Alloys
https://www.intechopen.com/chapters/57860
This activation energy is close to that of lattice diffusion in the alloy steel [13]. To test the long-term extrapolation capability of the Wilshire Equations, ...
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34 Lecture 36 - Creep
http://www.nitttrc.edu.in/nptel/courses/video/113107078/lec36.pdf
So, Creep is intimately related with the self diffusion of atoms ok. Now, the Creep mechanise depend on deformation conditions. So, temperature and.
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35 Strengthening against creep
https://www.ias.ac.in/article/fulltext/sadh/003/04/0297-0313
leading to a higher creep strain and lower rupture life (Pattanaik et al ... takes into consideration relative contributions due to volume diffusion and.
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36 Microstructure Control and Correlation to Creep Properties in ...
https://trace.tennessee.edu/cgi/viewcontent.cgi?article=5318&context=utk_graddiss
The initial base metal creep results indicate the new alloy has similar ... cause severe degradation in the creep-rupture life of Grade 91 steel [6, 7].
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37 Creep of the Austenitic Steel AISI 316 L(N)
https://d-nb.info/973572558/34
nent of 4.5 on the stress, this value is remarkably close to observed values. There is general agreement that high temperature creep is diffusion-controlled ...
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38 Modeling the Creep of Nickel | J. Eng. Mater. Technol.
https://asmedigitalcollection.asme.org/materialstechnology/article/143/4/041011/1110793/Modeling-the-Creep-of-Nickel
The exception is when pipe diffusion is controlling the creep rate. ... in the experimental data and the modeling results are similar.
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39 Creep Fracture
http://users.encs.concordia.ca/~mmedraj/tmg-books/Fundemental%20of%20creep%20in%20Metals%20and%20Alloys/Chp.10%20Creep%20fracture.pdf
This supports the suggestion that the controlling factor for cavity growth is diffusion rather than plasticity or GBS. Similar findings were reported by others ...
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40 The Numerical Analysis of Creep Deformation and Cavitation ...
https://www.tms.org/pubs/journals/JOM/9808/Chakraborty/Chakraborty-9808.html
The modeling results show that the low strain rates and relatively long creep life observed experimentally for fully lamellar TiAl can be primarily due to ...
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41 Creep behavior of Ti-6Al-4V from 450°C to 600°C
https://hal.archives-ouvertes.fr/hal-01186469/document
stress lower than 0.9xYS, steady-state creep strain rate dependency with stress follows a power law close to diffusion model (n ≈ 4-5).
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42 Creep in Ceramics | springerprofessional.de
https://www.springerprofessional.de/en/creep-in-ceramics/12187968
Creep and Its Relation to Diffusion ... rate in ceramics is smaller than in metals but experimental evidence indicates similar creep behavior between them.
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43 Creep Damage | Scientific.Net
https://www.scientific.net/paper-keyword/creep-damage
The optimum creep strain, stress, damage, and worst life were found at the intrados ... Development of Creep Damage in Similar Weld Joints of P92 Steel Pipe.
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44 Short-Term Creep Data Based Long-Term Creep Life ...
https://typeset.io/papers/short-term-creep-data-based-long-term-creep-life-24znnyv8hb
Both NPL and Wilshire models, calibrated by the short-term creep life data, showed a transition in creep mechanism at a similar normalized stress.
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45 Proceedings of - University of Bristol Research Portal
https://research-information.bris.ac.uk/files/267731915/Martin_Creep_cavitation_PVP_2020_final.pdf
ABSTRACT. Cavity formation during creep of steels at high temperatures and stresses is closely related to the original and evolved.
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46 Effect of Cr and Zr on the Tensile Creep Behavior ... - ProQuest
https://search.proquest.com/openview/6f4817b50656c9a7f6d19f6ef71d1610/1?pq-origsite=gscholar&cbl=42295
The creep true stress exponent is close to 5. The creep mechanism of the alloys is controlled by the lattice diffusion of aluminum. The creep resistance of ...
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47 Olivine crystals align during diffusion creep of Earth's upper ...
https://europepmc.org/article/med/24132289
Europe PMC is an archive of life sciences journal literature. ... Full text; References; Citations & impact; Similar Articles ...
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48 An Overview of Creep in Ceramics and Simple Strategies to ...
https://www.remet.com/en/insights/an-overview-of-creep-in-ceramics/
Creep occurs through diffusion assisted grain boundary sliding with little grain elongation and no cavity formation, plastic deformation occurs due to a ...
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49 Based on damage caused by microstructure evolution during ...
https://aip.scitation.org/doi/10.1063/5.0018611
The creep rupture life of a Ni-based single-crystal superalloy was ... be seen that the creep deformation was closely related to the γ/γ′ microstructure of ...
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50 Creep fracture mechanism of polycrystalline Ni-based ...
https://www.gruppofrattura.it/ocs/index.php/ICF/icf13/paper/download/11297/10676
Keywords: Creep; Ni-based superalloy; Diffusion coating; Crack. 1. Introduction ... gives the similar calculated results on diffusivity of Al in IN792 [12].
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51 Study of the Creep Behavior of Nickel-Based Single Crystal ...
https://mdpi-res.com/d_attachment/crystals/crystals-12-00592/article_deploy/crystals-12-00592-v2.pdf?version=1650782226
is closely related to both the dislocation structure and ... exhibits the longest creep life for constant temperature stress, i.e., ...
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52 Small punch creep test in a 316 austenitic stainless steel
https://revistademetalurgia.revistas.csic.es/index.php/revistademetalurgia/article/view/1344/1426
This comparison suggests that the activation energy of this work is close to that corresponding to the grain boundary diffusion. 4.2. Creep mechanismTOP. The n ...
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53 Creep and High Temperature Failure - Semantic Scholar
https://pdfs.semanticscholar.org/6bb5/142cad5eb07be258799c92fb6d21fbf87028.pdf
Performed in uniaxial tension with specimens of similar ... This might be expected since creep involves mass transfer or diffusion. Dr. M. Medraj.
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54 Evaluation of Diffusion Creep in Low Melting Point Materials ...
https://www.jstage.jst.go.jp/article/jsmea/49/3/49_3_397/_pdf
In this study, diffusion creep in Sn-37Pb as a low melting point alloy during a nanoin- ... dwell time during indentation creep with a self-similar.
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55 Relationship Between Fatigue Life in the Creep-Fatigue ...
https://ntrs.nasa.gov/api/citations/19880008656/downloads/19880008656.pdf
dislocation climb and diffusion processes in the material. ... similar fatigue lives, because there are almost no transverse grain boundary.
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56 Designing for Creep Resistance - Nickel Based Superalloys
https://eng.libretexts.org/Bookshelves/Materials_Science/TLP_Library_I/12%3A_Creep_Deformation_of_Metals/12.7%3A_Designing_for_Creep_Resistance_-_Nickel_Based_Superalloys
For example, diffusion (and hence creep) rates are relatively high at ... In general, diffusive jumps are more difficult in close-packed, ...
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57 temperature creep deformation: Topics by WorldWideScience ...
https://worldwidescience.org/topicpages/t/temperature+creep+deformation.html
Influences of cyclic deformation on creep property and creep-fatigue life ... its behavior is similar to stress exponent behavior of uniaxial creep test.
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58 Influence of Temperature on Stacking Fault Energy and Creep ...
https://www.jmst.org/article/2016/1005-0302/1005-0302-32-8-790.shtml
Adding refractory elements Re, W, or Mo may reduce the diffusion rate of ... The mechanical and creep properties of alloys are closely related to their SFE.
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59 Creep behavior of gold thin films investigated by bulge testing ...
https://www.cambridge.org/core/journals/journal-of-materials-research/article/creep-behavior-of-gold-thin-films-investigated-by-bulge-testing-at-room-and-elevated-temperature/F9094AF464B605442021F5CAE13C1B2E
A similar analysis was performed for the whole range of ... previous assumption of diffusion-assisted power-law creep at room temperature.
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60 Creep - NFPL139: Physics of Materials II
https://material.karlov.mff.cuni.cz/people/smilauerova/vyuka/FyzMat_II/FyzMat_II_3_creep.pdf
depends on time, temperature, stress and on the material (diffusion ... creep rate dependence on σ and T roughly similar to viscous flow, if.
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61 Field theory and diffusion creep predictions in polycrystalline ...
https://matperso.minesparis.psl.eu/Donnees/data12/1247-villani15.pdf
viscoplastic strain fields, especially close to grain boundaries triple ... Keywords: stress-diffusion coupling, vacancy diffusion, creep, ...
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62 REMANENT CREEP LIFE PREDICTION IN LOW-ALLOY ...
https://www.phase-trans.msm.cam.ac.uk/2007/Wilson/Pt1.pdf
Jeither this, nor any substantially similar ... It is believed that the safe creep life of low-alloy steel components used in.
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63 Molecular Dynamics Study of Creep Deformation in Nickel ...
https://bearworks.missouristate.edu/cgi/viewcontent.cgi?article=4493&context=theses
metal and the physical mechanism is clearly not similar from that in solids. ... Another key factor that can have a large effect on the creep life of ...
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64 Materials Flashcards - Quizlet
https://quizlet.com/138860947/materials-flash-cards/
If metal had crystal structure with many close packed planes then metal will ... Any changes in proportions of each stage need to occur by diffusion which ...
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65 phase of a Ni-base single crystal superalloy
https://kd.nsfc.gov.cn/paperDownload/1000014270187.pdf
Creep deformation related to dislocations cutting the γ0 ... tion is very important since it is closely related to the creep life of.
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66 Creep Properties of SUS304 in Hydrogen and Consideration ...
https://catalog.lib.kyushu-u.ac.jp/opac_download_md/4475119/eng3093.pdf
3.4.4 Promoted dislocation climb due to enhanced lattice diffusion ... According to this table, it is similar that the creep life is reduced by hydrogen.
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67 ɤ-TiAl alloy: Tensile creep deformation behaviour ... - Preprints
https://www.preprints.org/manuscript/202109.0175/v1/download
Besides, it is also aimed to investigate the creep life for stress levels of ... However, both these mechanisms show a similar sensitivity.
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68 Creep Behavior of Niobium-Containing Zirconium Alloys
https://repository.lib.ncsu.edu/bitstream/handle/1840.20/31036/C01_1.pdf?sequence=1
diffusion-controlled creep mechanisms starts to operate. ... upper portion of these data is close to the power law breakdown regime (PLB), ...
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69 Effects of Thermal Cycling on Creep of SnAgCu Solder Joints
https://ieeexplore.ieee.org/document/8558512/
The long-term life of properly optimized high-end ... Accept & Close ... showing additional contributions from diffusion on cycling induced ...
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70 Crystal Plasticity Modeling of Creep in Alloys with Lamellar ...
https://www.frontiersin.org/articles/10.3389/fmats.2020.581187/full
The anisotropy in the creep resistance of PST crystals shows characteristics that are similar to what has been observed for their yield stress.
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71 Plastic deformation and creep in crystalline materials
https://slideplayer.com/slide/3815140/
No change in crystal structure: slip twinning Slip takes place on slip systems (plane + direction) Slip planes usually close-packed planes Slip directions ...
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72 A New Model for Tensile Creep of Silicon Nitride
https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=900964
timate extension causes failure, as a way to develop life- ... cently, Dey et al.82 have developed a model for creep similar to.
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73 Creep properties of catalyst coated membranes for polymer ...
http://www.sfu.ca/~gwa5/pdf/2015_10.pdf
factors dominating creep life in commonly used perfluorosulfonic acid (PFSA) ionomer ... Similar mechanical properties were obtained by.
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74 Engineering Tools for Robust Creep Modeling
https://publications.vtt.fi/pdf/publications/2010/P728.pdf
tools to predict creep strain and life for material evaluation, ... There is a close relationship between minimum creep rate and the time to.
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75 Technical Paper: Long-Term Creep Life Prediction for Bainitic ...
https://issuu.com/pumasalient/docs/eis_49_for_web/s/11016618
Keywords: Grades 22, 23 and 24 steels, Creep fracture, Creep life prediction. ... Similar equations then define the minimum creep rate ( m ) and the time to ...
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76 Evaluation of local stress state due to grain- boundary sliding ...
https://arxiv.org/pdf/2103.00308
This constraint i) satisfies mass conservation (similar to [25]), ... and diffusion-dominated creep for small grain sizes at low strain-rate, ...
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77 Creep Life Predictions of Engineering Components
https://cyberleninka.org/article/n/1038568
While both may give similar predictions, the latter provides physical insight into the underlying mechanisms and suggests ways and means of improving creep ...
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78 CREEP OF HIGH SPEED STEELS PART I – EXPERIMENTAL ...
https://www5.kau.se/sites/default/files/Dokument/subpage/2010/02/34_453_476_pdf_36080.pdf
The creep behaviour of the HSS matrix comes close to ... by fracture and decohesion of carbide particles, which reduces the life to.
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79 Microstructure and dislocation structure evolution during creep ...
https://research.tudelft.nl/files/86708691/1_s2.0_S1005030220300992_main.pdf
tion of the phases during the entire creep life is presented in Fig. 1 ... orientation of directional coarsening is closely related to the driv-.
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80 Creep - SlideShare
https://www.slideshare.net/GopinathGuru3/creep-62372016
Creep fracture or Stress Rupture • Stress rupture testing is similar to creep testing except that the stresses used are higher than in a ...
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81 Creep at Very Low Rates - ResearchSpace
https://researchspace.csir.co.za/dspace/bitstream/handle/10204/2055/nabarro_2002.pdf?sequence=3&isAllowed=y
In diffusional creep, the concentration of vacancies close ... temperature process in which diffusion occurs in the bulk dependence (N-H, C); and correct ...
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82 Creep Deformation - About Tribology - Tribonet
https://www.tribonet.org/wiki/creep-deformation/
For Nabarro-Herring creep k is related to the diffusion coefficient of atoms through the lattice, Q = Qself diffusion, m=1, and b=2. Therefore N-H creep has ...
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83 Creep and Stress Rupture Properties - Materials - NDE-Ed.org
https://www.nde-ed.org/Physics/Materials/Mechanical/Creep.xhtml
Stress rupture testing is similar to creep testing except that the stresses are higher than those used in a creep testing. Stress rupture tests are used to ...
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84 Effect of Cr and Zr on the Tensile Creep Behavior ... - NASA/ADS
https://ui.adsabs.harvard.edu/abs/2018JOM....70k2505L/abstract
The creep true stress exponent is close to 5. ... a small amount of Cr and Zr elements The reasons for the improved creep life of the AF15 alloy are discussed.
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85 Gas Diffusion in Polyolefin Foams during Creep Tests. Effect ...
https://journals.sagepub.com/doi/abs/10.1177/026248930602500402
A method to obtain the effective diffusion coefficient of the gas contained in ... Effect on Impact Behaviour and Recovery after Creep ... Similar articles:.
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86 12.5.3 Remedies for Creep Damage - Aeroengine Safety
https://aeroenginesafety.tugraz.at/doku.php?id=12:125:1253:1253
What are the damage-relevant operating temperatures, their temporal ... Were creep life-reducing influences, such as especially corrosive ...
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87 3-1-creep.pdf
https://materialsection.files.wordpress.com/2011/02/3-1-creep.pdf
World trade center, WTC collapsed, due to creep. WHAT IS CREEP? ... For short life application: e.g. turbine blade in military aircraft and.
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88 Difference Between Dislocation Creep and Diffusion Creep
https://www.differencebetween.com/difference-between-dislocation-creep-and-diffusion-creep/
Diffusion creep is a type of deformation mechanism in crystalline materials where the diffusion of vacancies through the crystal lattice occurs.
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89 Fabrication of a turbine disk alloy by electron beam sheet ...
http://amp.turbo.fr/local-searching-02bj5CdjVmcpRWZj5WZpN2cuc3d39yL6MHc0/science/article/abs/pii/S1005030222008209
The alloy showed an outstanding creep life of 1266.3 h at 953 K/500 MPa. ... Similar to 3D rapid prototyping, an electron beam is applied in ...
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90 polymer concrete properties
https://penghuhola.com.tw/a14dh/polymer-concrete-properties
Its properties are similar to polyethylene, but it is slightly harder Thus at ... In the last century, polymers became a base material in everyday life for ...
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91 Quenchable meaning
https://tfp-lannion-22.fr/quenchable-meaning.html
Also with Quenchableness sentences, similar words, Synonyms, Antonyms and more. ... difficulties he faced, brought 'an almost amoral' quality to his life.
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92 Craft — PaulStamatiou.com
https://paulstamatiou.com/craft/
Crafting high-quality software, according to Stable Diffusion AI ... Getting as close to the technical side will help you.
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93 Diffusion | McGraw Hill's AccessScience
https://www.accessscience.com/content/article/a194200
The true driving force for diffusion is differences in chemical potential, which is a thermodynamic property. Molecules diffuse from regions of higher to lower ...
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94 Characterization of Minerals, Metals, and Materials 2013
https://books.google.com/books?id=BPEfPCZMpEMC&pg=PA316&lpg=PA316&dq=why+creep+life+is+closely+related+to+diffusion&source=bl&ots=DZisQWgtZ1&sig=ACfU3U2jILZwiTKQGS7A4RZqYurA3kf4HQ&hl=en&sa=X&ved=2ahUKEwjRup60osv7AhUljYkEHe9uDcwQ6AF6BQjIAhAD
mentioned above that all of the creep cracks grow along y/y' interface, ... The diffusion coefficient is closely related to crystal defects, ...
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