Effect of electrochemical hydrogen charging in corrosion medium on microstructural evolution and mechanical behavior of an as-forged Ti-6Al-4V (in wt.%) alloy

doi:10.1007/s42243-024-01274-7

IMR OpenIR

	Effect of electrochemical hydrogen charging in corrosion medium on microstructural evolution and mechanical behavior of an as-forged Ti-6Al-4V (in wt.%) alloy
	Wang, Bao-jie 1; Xu, Dao-kui 2; Xu, Tian-qi 2; Wang, Shuo 2
通讯作者	Xu, Dao-kui(dkxu@imr.ac.cn)
	2024-07-05
发表期刊	JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN	1006-706X
页码	11
摘要	Combined with the hydrogen pre-charging and tensile testing methods, the effect of charged hydrogen content on the microstructure and mechanical behavior of an as-forged Ti-6Al-4V alloy was investigated. After performing hydrogen charging for 2, 4, 6, 8 and 10 h at a constant cathodic current density value of 75 mA/cm2 in a corrosion medium of 3.5 wt.% NaCl solution, the hydrogen contents in the charged samples increased gradually from 73 x 10-4 to 230 x 10-4 wt.%. When the hydrogen content was less than 190 x 10-4 wt.%, the charged hydrogen atoms were present as the solute atoms in the matrix, resulting in the enhanced tensile strength due to the solid solution strengthening of hydrogen atoms. Moreover, the reduced axial ratio c/a for alpha-Ti matrix due to the hydrogen dissolution was beneficial to improving the ductility of the hydrogenated samples. The critical hydrogen content for simultaneously improving the ductility and strength is determined to be 99 x 10-4 wt.%. When the hydrogen content was 230 x 10-4 wt.%, a small number of delta-TiHx hydrides and micro cracks formed in the localized areas of alpha-Ti matrix, resulting in the simultaneous decrease of ductility and strength.
关键词	Titanium alloy Hydrogen Electrochemical corrosion Tensile property Hydrogen embrittlement
资助者	National Natural Science Foundation of China ; Liaoning Province's project of Revitalizing Liaoning Talents ; Doctor Startup Fund of Natural Science Foundation Program of Liaoning Province ; Liaoning Bai QianWan Talents Program ; Domain Foundation of Equipment Advance Research of 13th Five-Year Plan ; National Key Research and Development Program of China ; Innovation Fund of Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS) ; National Basic Research Program of China (973 Program) ; Fundamental Research Fund for the Central Universities
DOI	10.1007/s42243-024-01274-7
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51871211] ; National Natural Science Foundation of China[U21A2049] ; National Natural Science Foundation of China[52071220] ; National Natural Science Foundation of China[51701129] ; National Natural Science Foundation of China[51971054] ; Liaoning Province's project of Revitalizing Liaoning Talents[XLYC1907062] ; Doctor Startup Fund of Natural Science Foundation Program of Liaoning Province[2019-BS-200] ; Liaoning Bai QianWan Talents Program ; Domain Foundation of Equipment Advance Research of 13th Five-Year Plan[61409220118] ; National Key Research and Development Program of China[2017YFB0702001] ; National Key Research and Development Program of China[2016YFB0301105] ; Innovation Fund of Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS) ; National Basic Research Program of China (973 Program)[2013CB632205] ; Fundamental Research Fund for the Central Universities[N2009006]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001262880300001
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/321006/187901
专题	中国科学院金属研究所
通讯作者	Xu, Dao-kui
作者单位	1.Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Liaoning, Peoples R China 2.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Wang, Bao-jie,Xu, Dao-kui,Xu, Tian-qi,et al. Effect of electrochemical hydrogen charging in corrosion medium on microstructural evolution and mechanical behavior of an as-forged Ti-6Al-4V (in wt.%) alloy[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2024:11.
APA	Wang, Bao-jie,Xu, Dao-kui,Xu, Tian-qi,&Wang, Shuo.(2024).Effect of electrochemical hydrogen charging in corrosion medium on microstructural evolution and mechanical behavior of an as-forged Ti-6Al-4V (in wt.%) alloy.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,11.
MLA	Wang, Bao-jie,et al."Effect of electrochemical hydrogen charging in corrosion medium on microstructural evolution and mechanical behavior of an as-forged Ti-6Al-4V (in wt.%) alloy".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL (2024):11.