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Effect of electrochemical hydrogen charging on the mechanical behavior of a dual-phase Ti-4Al-2V-1Mo-1Fe (in wt.%) alloy
Wang, S.1,2; Xu, D. K.2; Zhang, Z. Q.1; Ma, Y. J.3; Qiao, Y. X.4
Corresponding AuthorXu, D. K.(dkxu@imr.ac.cn) ; Zhang, Z. Q.(zqzhang@mail.neu.edu.cn)
2021-01-20
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume802Pages:10
AbstractThe effect of electrochemical hydrogen charging on the mechanical properties and fracture behavior of a dual-phase Ti-4Al-2V-1Mo-1Fe (Ti4211) alloy was investigated. It revealed that after being electrochemical charged at a constant cathodic current density value of 100 mA/cm(2) for 4 h, 8 h and 24 h, needle-like delta-TiHx hydrides were formed in the interior of alpha-Ti phases and at alpha-Ti/beta-Ti interfaces. For the sample being charged for 4 h, alpha-Ti phases near the hydrogen charging direction could be completely transformed into hydrides and formed a hydride layer with an average thickness of 160 mu m. As for the samples being charged for 8 h and 24 h, the thicknesses of the hydride layers were respectively increased to 230 mu m and 380 mu m. Tensile results demonstrated that with the charging time being increased from 0 h to 24 h, the elongation ratio to failure (epsilon(f)) was decreased from 13.2% to 0.6%. The reason for ductile degradation was attributed to the stress concentration effect caused by the preferential cracking of hydride layers.
KeywordTitanium alloy Electrochemical hydrogen charging Hydride Ductility Fracture behavior
Funding OrganizationNational Key Research and Development Program of China ; Liaoning Province's project of Revitalizing Liaoning Talents ; National Natural Science Foundation of China ; Doctor Startup Fund of Natural Science Foundation Program of Liaoning Province ; Strategic New Industry Development Special Foundation of Shenzhen ; funds of International Joint Laboratory for Light Alloys, Liaoning BaiQianWan Talents Program ; Domain Foundation of Equipment Advance Research of 13th Five-year Plan ; Innovation Fund of Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS) ; National Basic Research Program of China ; Fundamental Research Funds for the Central Universities
DOI10.1016/j.msea.2020.140448
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFB0702001] ; National Key Research and Development Program of China[2016YFB0301105] ; Liaoning Province's project of Revitalizing Liaoning Talents[XLYC1907062] ; National Natural Science Foundation of China[5207011217] ; National Natural Science Foundation of China[51871211] ; National Natural Science Foundation of China[51701129] ; National Natural Science Foundation of China[51971054] ; Doctor Startup Fund of Natural Science Foundation Program of Liaoning Province[2019-BS-200] ; Strategic New Industry Development Special Foundation of Shenzhen[JCYJ20170306141749970] ; funds of International Joint Laboratory for Light Alloys, Liaoning BaiQianWan Talents Program ; Domain Foundation of Equipment Advance Research of 13th Five-year Plan[61409220118] ; Innovation Fund of Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS) ; National Basic Research Program of China[2013CB632205] ; Fundamental Research Funds for the Central Universities[N180904006] ; Fundamental Research Funds for the Central Universities[N2009006]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000612551600001
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160533
Collection中国科学院金属研究所
Corresponding AuthorXu, D. K.; Zhang, Z. Q.
Affiliation1.Northeastern Univ, Minist Educ, Key Lab Electromagnet Proc Mat, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
4.Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Wang, S.,Xu, D. K.,Zhang, Z. Q.,et al. Effect of electrochemical hydrogen charging on the mechanical behavior of a dual-phase Ti-4Al-2V-1Mo-1Fe (in wt.%) alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2021,802:10.
APA Wang, S.,Xu, D. K.,Zhang, Z. Q.,Ma, Y. J.,&Qiao, Y. X..(2021).Effect of electrochemical hydrogen charging on the mechanical behavior of a dual-phase Ti-4Al-2V-1Mo-1Fe (in wt.%) alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,802,10.
MLA Wang, S.,et al."Effect of electrochemical hydrogen charging on the mechanical behavior of a dual-phase Ti-4Al-2V-1Mo-1Fe (in wt.%) alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 802(2021):10.
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