Pseudo Sub-grain Formation and Evolution in a Ti<sub>3</sub>Al-Nb Based Alloy Induced by B2-BCC Disordering

doi:10.1007/s11661-024-07530-5

IMR OpenIR

	Pseudo Sub-grain Formation and Evolution in a Ti₃Al-Nb Based Alloy Induced by B2-BCC Disordering
	Liu, Liangliang 1,2; Liu, Dong 1; Cui, Yuyou 1; Yang, Rui 1,3
通讯作者	Yang, Rui(ryang@imr.ac.cn)
	2024-08-01
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
页码	16
摘要	The high temperature beta/B2 phase field of Ti3Al-Nb based alloys was rarely studied due to limitation in experimental technique, but different states of this phase field lead to difference in subsequent phase transformation path and resulting microstructure. By controlling the heating temperature and dwell time of alpha(2)' -> beta/B2 transformation and subsequent cooling rate, we achieved a new microstructure consisting of domains of the B2 phase with alpha(2)' martensite occupying the disordered BCC domain walls, effectively forming a pseudo sub-grain microstructure. It is shown that the domain walls evolved from the disordered beta phase in the beta/B2 phase field. Such pseudo sub-grain boundaries refine the prior beta grains by subdividing them into smaller alpha(2) colonies that form during subsequent heat treatment in the alpha(2)' + beta/B2 phase field upon reheating, and improve the mechanical properties of the alloy.
DOI	10.1007/s11661-024-07530-5
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:001282856600002
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/321006/188679
专题	中国科学院金属研究所
通讯作者	Yang, Rui
作者单位	1.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.ShanghaiTech Univ, Ctr Adapt Syst Engn, Sch Creat & Art, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Liu, Liangliang,Liu, Dong,Cui, Yuyou,et al. Pseudo Sub-grain Formation and Evolution in a Ti₃Al-Nb Based Alloy Induced by B2-BCC Disordering[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2024:16.
APA	Liu, Liangliang,Liu, Dong,Cui, Yuyou,&Yang, Rui.(2024).Pseudo Sub-grain Formation and Evolution in a Ti₃Al-Nb Based Alloy Induced by B2-BCC Disordering.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,16.
MLA	Liu, Liangliang,et al."Pseudo Sub-grain Formation and Evolution in a Ti₃Al-Nb Based Alloy Induced by B2-BCC Disordering".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2024):16.