Ti-Nb合金中β/α″相界面的研究
Investigation of β/α″ interface in Ti-Nb alloy
孙锦辉1
作者信息
- 1. School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China
- 折叠
摘要
本文用高分辨透射电子显微镜研究了β 型Ti-Nb基合金中变形带内部的β/α″相界面,还用马氏体相变拓扑模型(TM)估算了α″相惯习面附近的弹性应力场.结果表明,α″相惯习面附近的弹性应力太小,以至于不会引起应力诱发β→ω相变.此外,{332}<113>β孪晶是在应力诱发的α″相内部产生的,并且孪晶和{110}β/{00-2}α″相界面有关.
Abstract
The β/α″ interface in deformation bands was studied using high resolution transmission electron microscopy(HRTEM)observations in β-type titanium-niobium-based(Ti-Nb)alloys,and the elastic stress near the α″ habit plane was estimated using a topological model of martensitic transformation(TM).The results indicate that the elastic stress near the α″ habit plane is too small to cause β to ω transformation.In addition,the{332}<113>β twin is formed within the stress-induced α″ phase,and is closely related to the{110}β/{001ˉ}α″ interfaces.
关键词
Ti-Nb基合金/β→α″相变/β→ω相变/α″相惯习面附近的弹性应力/β/α″相界面Key words
titanium-niobium-based alloys/β to α″ phase transformation/β to ω phase transformation/elastic stress near the α″ habit plane/β/α″ interface引用本文复制引用
出版年
2023
NETL
NSTL
维普
万方数据