Simulation of recoverable strain variation during isothermal holding of the Ni51Ti49 alloy under various regimes

IF 0.8 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Letters on Materials Pub Date : 2023-03-01 DOI:10.22226/2410-3535-2023-1-33-38
N. Resnina, A. Ivanov, Feodor Belyaev, Alexander Volkov, S. Belyaev
{"title":"Simulation of recoverable strain variation during isothermal holding of the Ni51Ti49 alloy under various regimes","authors":"N. Resnina, A. Ivanov, Feodor Belyaev, Alexander Volkov, S. Belyaev","doi":"10.22226/2410-3535-2023-1-33-38","DOIUrl":null,"url":null,"abstract":"The aim of the present paper is to simulate the strain variation on isothermal holding of Ni-rich NiTi alloy under various regimes. The modified Likhachev-Volkov microstructural model and a new Nelder-Mead algorithm for the determination of the model parameters were used. To determine the model parameters, the experimental data obtained during holding of the Ni 51 Ti 49 alloy under a stress of 200 MPa were chosen. Using these parameters, the strain variation on holding of the NiTi alloy under a stress in two regimes was simulated. It was shown that the modified Likhachev-Volkov microstructural model allowed one to calculate the isothermal strain variation on holding after cooling under a stress (Regime 1) and a good correlation between the theoretical and experimental results were found. At the same time, the simulation of the strain variation on holding after active deformation (Regime 2) did not fit to experimental data because the model did not consider the difference in the stored elastic energy in two regimes. It was shown that a decrease in the elastic energy stored during the transformation increased the strain during holding under a stress after active deformation and made the simulated curves to be close to the experimental.","PeriodicalId":45792,"journal":{"name":"Letters on Materials","volume":" ","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Letters on Materials","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22226/2410-3535-2023-1-33-38","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

The aim of the present paper is to simulate the strain variation on isothermal holding of Ni-rich NiTi alloy under various regimes. The modified Likhachev-Volkov microstructural model and a new Nelder-Mead algorithm for the determination of the model parameters were used. To determine the model parameters, the experimental data obtained during holding of the Ni 51 Ti 49 alloy under a stress of 200 MPa were chosen. Using these parameters, the strain variation on holding of the NiTi alloy under a stress in two regimes was simulated. It was shown that the modified Likhachev-Volkov microstructural model allowed one to calculate the isothermal strain variation on holding after cooling under a stress (Regime 1) and a good correlation between the theoretical and experimental results were found. At the same time, the simulation of the strain variation on holding after active deformation (Regime 2) did not fit to experimental data because the model did not consider the difference in the stored elastic energy in two regimes. It was shown that a decrease in the elastic energy stored during the transformation increased the strain during holding under a stress after active deformation and made the simulated curves to be close to the experimental.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Ni51Ti49合金在不同状态下等温保温过程中可恢复应变变化的模拟
本文的目的是模拟不同条件下富镍NiTi合金等温保温时的应变变化。采用改进的Likhachev-Volkov微观结构模型和新的Nelder-Mead算法确定模型参数。为了确定模型参数,选取了Ni 51 Ti 49合金在200 MPa应力下保温的实验数据。利用这些参数,模拟了两种应力状态下NiTi合金的应变变化规律。结果表明,改进的Likhachev-Volkov微观结构模型可以计算出在应力状态1下冷却后保温的等温应变变化,理论结果与实验结果具有良好的相关性。同时,由于模型没有考虑两种状态下储存弹性能的差异,对主动变形(状态2)后保持时的应变变化的模拟与实验数据不拟合。结果表明,在主动变形后的应力作用下,变形过程中所储存的弹性能的减少增加了保持过程中的应变,使模拟曲线与实验曲线更为接近。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Letters on Materials
Letters on Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
1.60
自引率
14.30%
发文量
48
期刊介绍: The aim of "Letters on materials" is to provide a fast publication of short research and review articles on various topics in materials science and related areas of material physics and mechanics. The editorial board sees it''s own task in rapid informing of the readers on the state-of-the-art challenges and achievements in materials science. The editorial board does its best to select high quality papers reporting new scientific results that are of interest for researchers in materials science, physics, and mechanics. "Letters on materials" invites Russian and foreign researches to publish papers in both the Russian and English languages. The scope of the journal covers the following research areas: structure analysis of materials, mechanical and physical properties of materials, production and processing of materials, experimental methods of investigation of materials, theory and computational methods in solid state physics. "Letters on materials" is designed for researchers, engineers, lecturers, and students working in the areas of materials science, mechanical engineering, metal forming, physics, and material mechanics.
期刊最新文献
The effect of oxygen-free MgF2 matrix on the physical properties of (CoFeZr)х(MgF2)100−х nanocomposites Tribological behavior of the electron beam additive manufactured Ti6Al4V-Cu alloy Investigation of the effect of compacting mode parameters of a carbon-aluminum wire preform on the strength of the produced compact Technological properties of sheet titanium alloys VT6 On selection of advanced compositions of flame resistant magnesium alloys
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1