Effect of electrochemical hydrogen charging on the microstructure and mechanical behavior of a duplex structured Mg-8wt.%Li alloy

doi:10.1016/j.jma.2024.01.002

IMR OpenIR

	Effect of electrochemical hydrogen charging on the microstructure and mechanical behavior of a duplex structured Mg-8wt.%Li alloy
	Wang, Shuo 1,2,3; Xu, Daokui 2,4,5; Wang, Baojie 6; Wang, Dongliang 2; Zhang, Zhiqiang 1,3; Liu, Li 2; Chen, Jie 7
通讯作者	Xu, Daokui(dkxu@imr.ac.cn) ; Wang, Baojie(bjwang@alum.imr.ac.cn) ; Zhang, Zhiqiang(zqzhang@mail.neu.edu.cn)
	2025-02-01
发表期刊	JOURNAL OF MAGNESIUM AND ALLOYS
ISSN	2213-9567
卷号	13 期号:2 页码:668-680
摘要	In this work, through performing microstructural characterization, tensile testing and failure analysis, the influence of electrochemical hydrogen charging on the microstructure and mechanical behavior of an as-cast Mg-8wt.%Li alloy was investigated. It revealed that after being hydrogen charged at 50 mA/cm2 for respectively 3 h, 6 h and 18 h in 0.1 M NaCl solution, obvious HID occurred and the damage degree was gradually increased with the hydrogen charging time. For the sample being hydrogen charged for 3 h, micro pores with the diameter ranging from 10 similar to 30 mu m were formed and preferentially present in alpha-Mg phase. Moreover, micro cracks with the length ranging from 10 similar to 50 mu m mainly initiated in alpha-Mg phase, at alpha-Mg/ ,B-Li interfaces and the peripheries of pores. With the increase of hydrogen charging time, the numbers of pores and cracks were obviously increased. Tensile results revealed that the hydrogen charging can simultaneously decrease the tensile strength and ductility of the alloy. Compared with the uncharged sample, the tensile yield strength, ultimate tensile strength and the elongation ratio to failure were respectively reduced by 5.7%, 7.3%, 31.7% for the 3h-charged sample and 24.6%, 24.8%, 67.0% for the 18h-charged sample. Failure analysis indicated that hydrogen charging can induce the brittle cracking of the alloy and the size of brittle cracking region being composed of quasi-cleavage facets and interfacial cracks on the fracture surfaces was increased with the hydrogen charging time. (c) 2024 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer review under responsibility of Chongqing University
关键词	Magnesium-lithium alloy Microstructure Hydrogen-induced damage Hydrogen embrittlement Mechanical behavior
资助者	National Natural Science Foundation of China Projects ; Liaoning Province's project of Revitalizing Liaoning Talents ; Doctor Startup Fund of Natural Science Foundation Program of Liaoning Province ; Strategic New Industry Development Special Foundation of Shenzhen ; International Joint Laboratory for Light Alloys, Liaoning BaiQian-Wan Talents Program ; National Key Research and Development Program of China ; Innovation Fund of Institute of Metal Research (IMR) , Chinese Academy of Sciences (CAS) ; Domain Foundation of Equipment Advance Research of 13th Five-year Plan ; National Basic Research Program of China (973 Program) ; Fundamental Research Fund for the Central Universities ; Bintech-IMR RD Program
DOI	10.1016/j.jma.2024.01.002
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China Projects[52071220] ; National Natural Science Foundation of China Projects[51871211] ; National Natural Science Foundation of China Projects[51701129] ; National Natural Science Foundation of China Projects[51971054] ; Liaoning Province's project of Revitalizing Liaoning Talents ; Doctor Startup Fund of Natural Science Foundation Program of Liaoning Province ; Strategic New Industry Development Special Foundation of Shenzhen ; International Joint Laboratory for Light Alloys, Liaoning BaiQian-Wan Talents Program ; 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) ; Domain Foundation of Equipment Advance Research of 13th Five-year Plan[61409220118] ; National Basic Research Program of China (973 Program) ; Fundamental Research Fund for the Central Universities ; Bintech-IMR RD Program ; [U21A2049] ; [XLYC1907062] ; [2019-BS-200] ; [JCYJ20170306141749970] ; [2013CB632205] ; [N2009006] ; [GYY-JSBU-2022-009]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001447718500001
出版者	KEAI PUBLISHING LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/192070
专题	中国科学院金属研究所
通讯作者	Xu, Daokui; Wang, Baojie; Zhang, Zhiqiang
作者单位	1.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 3.Northeastern Univ, Engn Res Ctr Adv Mat Preparing Technol, Minist Educ, Shenyang 110819, Peoples R China 4.Binzhou Inst Technol, Binzhou 256606, Shandong, Peoples R China 5.Shandong Key Lab Adv Aluminium Mat & Technol, Binzhou 256606, Shandong, Peoples R China 6.Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Peoples R China 7.Spallat Neutron Source Sci Ctr, Dongguan 523803, Peoples R China
推荐引用方式 GB/T 7714	Wang, Shuo,Xu, Daokui,Wang, Baojie,et al. Effect of electrochemical hydrogen charging on the microstructure and mechanical behavior of a duplex structured Mg-8wt.%Li alloy[J]. JOURNAL OF MAGNESIUM AND ALLOYS,2025,13(2):668-680.
APA	Wang, Shuo.,Xu, Daokui.,Wang, Baojie.,Wang, Dongliang.,Zhang, Zhiqiang.,...&Chen, Jie.(2025).Effect of electrochemical hydrogen charging on the microstructure and mechanical behavior of a duplex structured Mg-8wt.%Li alloy.JOURNAL OF MAGNESIUM AND ALLOYS,13(2),668-680.
MLA	Wang, Shuo,et al."Effect of electrochemical hydrogen charging on the microstructure and mechanical behavior of a duplex structured Mg-8wt.%Li alloy".JOURNAL OF MAGNESIUM AND ALLOYS 13.2(2025):668-680.