Stress corrosion cracking of the titanium alloys under hydrostatic pressure resulting from the degradation of passive films

doi:10.1016/j.actamat.2023.118946

IMR OpenIR

	Stress corrosion cracking of the titanium alloys under hydrostatic pressure resulting from the degradation of passive films
	Liu, Rui 1,2,3; Xie, Yushi 1; Jin, Yue 1; Cui, Yu 2; Liu, Li 1; Wang, Fuhui 1
通讯作者	Liu, Li(liuli@mail.neu.edu.cn)
	2023-06-15
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	252 页码:10
摘要	Stress corrosion cracking of Ti-6Al-4 V under hydrostatic pressure was studied based on experimental characterization and first-principles calculation. As a consequence of the water pressure, the passive films equipped with tensile stress become unstable, which might result from the dissolution of vanadium. The work function confirms that vanadium is environmentally sensitive and becomes surprisingly active under hydrostatic pressure. This selective dissolution provides an acid circumstance, although in the neutral 3.5% NaCl solution. Meanwhile, hydrostatic pressure also affects the adsorption and penetration of hydrogen, thus promoting the stress corrosion of titanium alloy. With the pressure, hydrogen ingresses into titanium and then incubates cracks by accelerating dislocation motion. Our efforts provided a basis for designing titanium alloys with higher tolerance to pressure changes, by selecting a class of alloying elements with little change in chemical stability even in extreme environments.
关键词	Stress-corrosion cracking Electrochemical characterization Deep sea Titanium alloys
资助者	Nation Key R & D Program of China ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; A-class pilot of the Chinese Academy of Sciences
DOI	10.1016/j.actamat.2023.118946
收录类别	SCI
语种	英语
资助项目	Nation Key R & D Program of China[2022YFB3808800] ; China Postdoctoral Science Foundation[2021M700711] ; National Natural Science Foundation of China[U20b2026] ; A-class pilot of the Chinese Academy of Sciences[XDA22010303]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000982272000001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：30[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/321006/177738
专题	中国科学院金属研究所
通讯作者	Liu, Li
作者单位	1.Northeastern Univ, Shenyang Natl Lab Mat Sci, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Wencui Rd 62, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Wenhua Rd 72, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Rui,Xie, Yushi,Jin, Yue,et al. Stress corrosion cracking of the titanium alloys under hydrostatic pressure resulting from the degradation of passive films[J]. ACTA MATERIALIA,2023,252:10.
APA	Liu, Rui,Xie, Yushi,Jin, Yue,Cui, Yu,Liu, Li,&Wang, Fuhui.(2023).Stress corrosion cracking of the titanium alloys under hydrostatic pressure resulting from the degradation of passive films.ACTA MATERIALIA,252,10.
MLA	Liu, Rui,et al."Stress corrosion cracking of the titanium alloys under hydrostatic pressure resulting from the degradation of passive films".ACTA MATERIALIA 252(2023):10.