Precipitates and alloying elements distribution in near alpha titanium alloy Ti65

doi:10.1016/j.jmst.2019.03.018

IMR OpenIR

	Precipitates and alloying elements distribution in near alpha titanium alloy Ti65
	Yue, Ke 1,2; Liu, Jianrong 1; Zhang, Haijun 1; Yu, Hui 1,3,4; Song, Yuanyuan 1; Hu, Qingmiao 1; Wang, Qingjiang 1; Yang, Rui 1
通讯作者	Liu, Jianrong(jrliu@imr.ac.cn)
	2020
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	36 页码:91-96
摘要	Precipitates, including silicides and Ti3Al (alpha(2)) phase, and alloying elements distribution in a near alpha titanium alloy Ti65 (Ti-5.8Al-4.0Sn-3.5Zr-0.5Mo-0.3Nb- 1.0Ta-0.4Si-0.8W-0.05C) after solution treatment and aging process were characterized by using transmission electron microscopy (TEM) and atom probe tomography (APT). Quantitative composition analysis and TEM observation indicate that the silicides fit to (Ti, Zr)(6)(Si, Sn)(3). Zr exhibits a beta-stabilizing effect in near alpha titanium alloys but is weaker than other beta stabilizing elements. The enriching tendency of the alloying elements in the retained beta phase is in the order of Zr < Nb < Ta < Mo < W. The experimental results are rationalized by the relative stability of alloying elements in the alpha and beta phases and the mobility of these atoms in the matrix. An enrichment of Si in the alpha(2) phase over the alpha matrix phase is noticed, which is attributed to the lower formation energy of Si in the alpha(2) phase. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Atom probe tomography Titanium alloys Precipitation First-principles calculation Alloying elements distribution
DOI	10.1016/j.jmst.2019.03.018
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:000503162000013
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：60[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/136468
专题	中国科学院金属研究所
通讯作者	Liu, Jianrong
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China 4.Shenyang Univ Technol, Sch Informat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Yue, Ke,Liu, Jianrong,Zhang, Haijun,et al. Precipitates and alloying elements distribution in near alpha titanium alloy Ti65[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,36:91-96.
APA	Yue, Ke.,Liu, Jianrong.,Zhang, Haijun.,Yu, Hui.,Song, Yuanyuan.,...&Yang, Rui.(2020).Precipitates and alloying elements distribution in near alpha titanium alloy Ti65.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,36,91-96.
MLA	Yue, Ke,et al."Precipitates and alloying elements distribution in near alpha titanium alloy Ti65".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 36(2020):91-96.