Evolution of Dislocation Structure During Room Temperature Compressive Creep of a New <i>α plus β</i> Titanium Alloy

doi:10.1007/s11661-024-07665-5

IMR OpenIR

	*Evolution of Dislocation Structure During Room Temperature Compressive Creep of a New α plus β* Titanium Alloy**
	Zhang, Mengmeng 1,2; Qiu, Jianke 1,2; Hu, Xiaobing 3; Fang, Chao 1,2; Zhang, Mingjie 1,2; Ma, Yingjie 1,2; Lei, Jiafeng 1,2; Yang, Rui 1,2
通讯作者	Qiu, Jianke(jkqiu@imr.ac.cn) ; Hu, Xiaobing(xbhu@northwestern.edu) ; Yang, Rui(ryang@imr.ac.cn)
	2024-12-07
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
页码	14
摘要	A precise understanding of cold compressive creep behavior is essential for elucidating the failure mechanisms of titanium pressure hulls in deep-sea service and designing enhanced alloys with optimized performance. In this study, we systematically investigated room temperature compressive creep mechanisms in an alpha + beta titanium alloy featuring a multi-level lamellar microstructure under varying applied stresses, using transmission electron microscopy (TEM) analysis. At an applied stress of 0.75 sigma 0.2, the alloy exhibits minimal plastic strain accumulation, with most dislocations remaining immobile. Once the stress threshold is exceeded, planar slip initiates along the prismatic plane, followed by the activation of basal and pyramidal slip at higher stress levels. Under high stress (0.95 sigma 0.2), creep deformation is primarily governed by prismatic and basal slip. Slip transfer between similar oriented grains within a microtextured region frequently occurs at stresses above 0.83 sigma 0.2. Additionally, we observed that higher applied stresses suppress the cross-slip of prismatic screw dislocations within the alpha grains.
资助者	National Key R & D Program of China ; CAS Project for Young Scientists in Basic Research ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China
DOI	10.1007/s11661-024-07665-5
收录类别	SCI
语种	英语
资助项目	National Key R & D Program of China[2021YFC2800500] ; National Key R & D Program of China[2022YFB3708300] ; CAS Project for Young Scientists in Basic Research[YSBR-025] ; Youth Innovation Promotion Association CAS[2022188] ; National Natural Science Foundation of China[91960202] ; National Natural Science Foundation of China[51701219]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001371509300001
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/321006/181296
专题	中国科学院金属研究所
通讯作者	Qiu, Jianke; Hu, Xiaobing; Yang, Rui
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA
推荐引用方式 GB/T 7714	Zhang, Mengmeng,Qiu, Jianke,Hu, Xiaobing,et al. Evolution of Dislocation Structure During Room Temperature Compressive Creep of a New α plus β Titanium Alloy[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2024:14.
APA	Zhang, Mengmeng.,Qiu, Jianke.,Hu, Xiaobing.,Fang, Chao.,Zhang, Mingjie.,...&Yang, Rui.(2024).Evolution of Dislocation Structure During Room Temperature Compressive Creep of a New α plus β Titanium Alloy.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,14.
MLA	Zhang, Mengmeng,et al."Evolution of Dislocation Structure During Room Temperature Compressive Creep of a New α plus β Titanium Alloy".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2024):14.