Formation mechanism of ultrafine α plus β structure in Ti-6Al-4V alloy during β→ α m → α plus β continuous phase transformation

doi:10.1016/j.scriptamat.2024.116066

IMR OpenIR

	Formation mechanism of ultrafine α plus β structure in Ti-6Al-4V alloy during β→ α m → α plus β continuous phase transformation
	Hu, Jianan 1,2,3; Jiang, Yuan 1; Yang, Yi 1; Xing, Hui 4; Han, Fuzhou 2; Zhou, Gang 1; Zhang, Kai 1,5,6; Xin, Shewei 7; Zhang, Siyuan 7; Huang, Jian 8; Wang, Hao 1; Li, Geping 2; Zhang, Lai-Chang 9; Huang, Aijun 5,6
通讯作者	Yang, Yi(yiyang.imr@163.com) ; Xing, Hui(xinghui@sjtu.edu.cn)
	2024-06-01
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	246 页码:7
摘要	Although massive transformation has been increasingly observed in titanium alloys, the decomposition mechanism of the massive transformation product (alpha m) is still unclear. Here, the beta ->alpha m ->alpha+beta continuous phase transformation in Ti-6Al-4V alloy during cooling was studied. We found that massive transformation occurs at a moderate cooling rate below 291.5 degrees C/s, forming irregular featureless alpha m. The thermodynamically unstable alpha m is supersaturated with beta stabilizers, and it tends to decompose into ultrafine alpha+beta structure during the continuous cooling at ever-lower cooling rates and temperatures. In the initial stage of alpha m decomposition, misfit dislocations appear as a predecessor and split alpha m into strips. Accompanied by the elemental redistribution, misfit dislocations are accommodated and replaced by beta phase. Both the formation and decomposition of alpha m follow the typical Burgers orientation relationship.
关键词	Phase transformation Massive alpha Ti-6Al-4V alloy Microstructure
资助者	National Natural Science Foundation of China ; Natural Sci-ence Foundation of Shanghai ; Foundation of Xi ' an Key Laboratory of High-Performance Titanium Alloy
DOI	10.1016/j.scriptamat.2024.116066
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52271108] ; National Natural Science Foundation of China[51971237] ; National Natural Science Foundation of China[52271036] ; Natural Sci-ence Foundation of Shanghai[21ZR1445100] ; Foundation of Xi ' an Key Laboratory of High-Performance Titanium Alloy[NIN-HTL-2022-02]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001218154200001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：6[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/321006/185971
专题	中国科学院金属研究所
通讯作者	Yang, Yi; Xing, Hui
作者单位	1.Univ Shanghai Sci & Technol, Sch Mat & Chem, Shanghai 200093, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai 200240, Peoples R China 5.Monash Univ, Monash Ctr Addit Manufacture, Notting Hill, Vic 3168, Australia 6.Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia 7.Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China 8.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine M, Shanghai 200050, Peoples R China 9.Edith Cowan Univ, Ctr Adv Mat & Mfg, Sch Engn, 270 Joondalup Dr, Perth, WA 6027, Australia
推荐引用方式 GB/T 7714	Hu, Jianan,Jiang, Yuan,Yang, Yi,et al. Formation mechanism of ultrafine α plus β structure in Ti-6Al-4V alloy during β→ α m → α plus β continuous phase transformation[J]. SCRIPTA MATERIALIA,2024,246:7.
APA	Hu, Jianan.,Jiang, Yuan.,Yang, Yi.,Xing, Hui.,Han, Fuzhou.,...&Huang, Aijun.(2024).Formation mechanism of ultrafine α plus β structure in Ti-6Al-4V alloy during β→ α m → α plus β continuous phase transformation.SCRIPTA MATERIALIA,246,7.
MLA	Hu, Jianan,et al."Formation mechanism of ultrafine α plus β structure in Ti-6Al-4V alloy during β→ α m → α plus β continuous phase transformation".SCRIPTA MATERIALIA 246(2024):7.