Hydrogen damage process of dual-phase Ti-6Al-4V alloy: From surface passive film to the interior substrate

doi:10.1016/j.electacta.2023.142916

IMR OpenIR

	Hydrogen damage process of dual-phase Ti-6Al-4V alloy: From surface passive film to the interior substrate
	Liu, Xiaozhen 1,2; Han, En-Hou 1,3,4; Song, Yingwei 1,3; Dong, Kaihui 1,3
通讯作者	Han, En-Hou(ehhan@imr.ac.cn) ; Song, Yingwei(ywsong@imr.ac.cn)
	2023-10-01
发表期刊	ELECTROCHIMICA ACTA
ISSN	0013-4686
卷号	464 页码:12
摘要	Ti alloys show promising application prospects in marine field due to their excellent corrosion resistance. However, hydrogen damage of Ti alloys is inevitable during the actual applications in view of the high susceptibility of Ti to hydrogen. The hydrogen damage process from the surface passive film to the interior Ti substrate of dual-phase Ti-6Al-4 V (TC4) alloy was studied using scanning electron microscopy (SEM), X-ray diffraction (XRD), and secondary ion mass spectroscopy (SIMS). The results indicate that the dense passive film on the surface of TC4 alloy is first replaced by loose corrosion product film which mainly consists of TiH1.5 hydrides, and then hydrogen diffuses into the interior of Ti substrate and forms the hydrides of TiH1.971 which are precipitated along the & alpha;/& beta; interfaces, resulting in the cracks of TC4 alloy. Moreover, the element V which mainly locates in the & beta; phases of TC4 before hydrogen charging is transformed to enrich both in & beta; phases and the hydrides at & alpha;/& beta; interfaces after hydrogen charging.
关键词	Hydrogen damage Passive film Microstructure Ti-6al-4V alloy Hydrides
资助者	Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
DOI	10.1016/j.electacta.2023.142916
收录类别	SCI
语种	英语
资助项目	Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)[311021013]
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:001050126900001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：4[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/321006/178961
专题	中国科学院金属研究所
通讯作者	Han, En-Hou; Song, Yingwei
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China 4.Inst Corros Sci & Technol, Guangzhou 510535, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiaozhen,Han, En-Hou,Song, Yingwei,et al. Hydrogen damage process of dual-phase Ti-6Al-4V alloy: From surface passive film to the interior substrate[J]. ELECTROCHIMICA ACTA,2023,464:12.
APA	Liu, Xiaozhen,Han, En-Hou,Song, Yingwei,&Dong, Kaihui.(2023).Hydrogen damage process of dual-phase Ti-6Al-4V alloy: From surface passive film to the interior substrate.ELECTROCHIMICA ACTA,464,12.
MLA	Liu, Xiaozhen,et al."Hydrogen damage process of dual-phase Ti-6Al-4V alloy: From surface passive film to the interior substrate".ELECTROCHIMICA ACTA 464(2023):12.