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An Orientation Relationship Between Parent Grains and Its Application to Variant Selection of Transformed α in Titanium Alloys

文献类型：期刊论文

作者Liu, Yuanhong1,2; Zhao, Zibo1,3; Wang, Qingjiang1; Yang, Jiuxu1; Liu, Yujing3; Liu, Jianrong1; Yang, Rui1
刊名METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
出版日期2025-03-01
卷号56期号:3页码:801-814
ISSN号1073-5623
DOI10.1007/s11661-025-07684-w
通讯作者Zhao, Zibo(zbzhao@imr.ac.cn) ; Wang, Qingjiang(qjwang@imr.ac.cn)
英文摘要The variant selection (VS) of the child phase at the grain boundary (GB) during solid phase transformation has been extensively reported in polycrystalline alloys and has proved to be a key factor in determining the final microstructure, texture, and mechanical properties of alloys. This study developed a new definition of the crystallographic orientation relationship (OR) between two parent grains, called phase transformation (PT) misorientation, which could be used to evaluate the VS tendency occurring at GBs. Specifically, PT misorientation (theta p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\theta }_{p}$$\end{document}) is the minimum angle of a grain rotating around a particular crystallographic orientation to where the grain can produce the same child variant (crystallographic orientation) with another grain. We examined the beta ->\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\to $$\end{document}alpha phase transformation in titanium alloy to confirm the effect of theta p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\theta }_{p}$$\end{document} on the VS tendency of GB alpha. The study demonstrated that the probability of VS occurrence is largely affected by the magnitude of theta p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\theta }_{p}$$\end{document}; in particular, the theta p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\theta }_{p}$$\end{document} dominates the VS when the angle is less than 5 deg. Compared with the empirical rule for VS using the deviation angle of the common {110} pole of two adjacent beta grains, a small theta p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\theta }_{p}$$\end{document} was found to be more reliable for evaluating the VS tendency. Moreover, we also analyzed the correlation between theta p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\theta }_{p}$$\end{document} and misorientation (theta\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\theta $$\end{document}), as well as their combined effects on VS. The effectiveness of theta p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\theta }_{p}$$\end{document} on VS prediction at various cooling rates was also discussed. As a new parameter for describing the OR between two adjacent grains, we believe that theta p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\theta }_{p}$$\end{document} is expected to tailor GB engineering in extended alloys during thermal-mechanical processes to achieve a satisfactory microstructure and texture.
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001404807800001
出版者SPRINGER
源URL  
专题金属研究所_中国科学院金属研究所
通讯作者Zhao, Zibo; Wang, Qingjiang
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Baoji Xigong Titanium Alloy Prod Co Ltd, Yuhua Inst Adv Mat, Baoji 721300, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Yuanhong,Zhao, Zibo,Wang, Qingjiang,et al. An Orientation Relationship Between Parent Grains and Its Application to Variant Selection of Transformed α in Titanium Alloys[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2025,56(3):801-814.
APA Liu, Yuanhong.,Zhao, Zibo.,Wang, Qingjiang.,Yang, Jiuxu.,Liu, Yujing.,...&Yang, Rui.(2025).An Orientation Relationship Between Parent Grains and Its Application to Variant Selection of Transformed α in Titanium Alloys.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,56(3),801-814.
MLA Liu, Yuanhong,et al."An Orientation Relationship Between Parent Grains and Its Application to Variant Selection of Transformed α in Titanium Alloys".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 56.3(2025):801-814.

入库方式： OAI收割

来源：金属研究所

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