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

doi:10.1007/s11661-025-07684-w

IMR OpenIR

	An Orientation Relationship Between Parent Grains and Its Application to Variant Selection of Transformed α in Titanium Alloys
	Liu, Yuanhong 1,2; Zhao, Zibo 1,3; Wang, Qingjiang 1; Yang, Jiuxu 1; Liu, Yujing 3; Liu, Jianrong 1; Yang, Rui 1
通讯作者	Zhao, Zibo(zbzhao@imr.ac.cn) ; Wang, Qingjiang(qjwang@imr.ac.cn)
	2025-03-01
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
卷号	56 期号:3 页码:801-814
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.
DOI	10.1007/s11661-025-07684-w
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001404807800001
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180420
专题	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.