The Mechanical Behaviour of the Intermediate Phase NiAl

R. T. Pascoe, C. Newey
{"title":"The Mechanical Behaviour of the Intermediate Phase NiAl","authors":"R. T. Pascoe, C. Newey","doi":"10.1179/030634568790443477","DOIUrl":null,"url":null,"abstract":"AbstractThe deformation behaviour of polycrystalline NiAl of various compositions, and of stoichiometric single crystals with different orientations, has been studied in compression in the temperature range 77–1300° K. All alloys except the aluminium-rich composition (53 at.-% aluminium) were deformable down to 77°K. Plastic deformation of single crystals was strongly anisotropic. All polycrystals and single crystals exhibited the three-stage temperature-dependence of the yield stress typical of b.c.c. alloys. The main effect of non-stoichiometry was to increase the athermal contribution to the yield stress; the strengthening produced by vacancies (aluminium-rich alloys) was greater than that produced by substitutional atoms (nickel-rich alloys).","PeriodicalId":103313,"journal":{"name":"Metal Science Journal","volume":"71 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"164","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metal Science Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1179/030634568790443477","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 164

Abstract

AbstractThe deformation behaviour of polycrystalline NiAl of various compositions, and of stoichiometric single crystals with different orientations, has been studied in compression in the temperature range 77–1300° K. All alloys except the aluminium-rich composition (53 at.-% aluminium) were deformable down to 77°K. Plastic deformation of single crystals was strongly anisotropic. All polycrystals and single crystals exhibited the three-stage temperature-dependence of the yield stress typical of b.c.c. alloys. The main effect of non-stoichiometry was to increase the athermal contribution to the yield stress; the strengthening produced by vacancies (aluminium-rich alloys) was greater than that produced by substitutional atoms (nickel-rich alloys).
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
中间相NiAl的力学行为
摘要本文研究了不同成分的NiAl多晶和不同取向的化学计量单晶在77 ~ 1300°k温度范围内的压缩变形行为。-%铝)在77°K下可变形。单晶的塑性变形具有很强的各向异性。所有的多晶和单晶均表现出b.c.c.合金屈服应力的三阶段温度依赖性。非化学计量的主要作用是增加屈服应力的非热贡献;空位(富铝合金)产生的强化大于取代原子(富镍合金)产生的强化。
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
自引率
0.00%
发文量
0
期刊最新文献
Superconducting Materials Research Influence of Anodic Layers on Fatigue-Crack Initiation in Aluminium Precipitation Processes in Mg–Th, Mg–Th–Mn, Mg–Mn, and Mg–Zr Alloys Precipitation in Aluminium-Copper Alloys Containing Additions of Indium and Tin A Kinetic Approach to Hydrogen Diffusion through Steel at 100–350°C
×
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