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Effect of solution treatment on stress corrosion cracking behavior of an as-forged Mg-Zn-Y-Zr alloy
Wang, S. D.; Xu, D. K.; Wang, B. J.; Sheng, L. Y.; Han, E. H.; Dong, C.; Xu, DK (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China.
2016-07-08
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume6
AbstractEffect of solid solution treatment (T4) on stress corrosion cracking (SCC) behavior of an as-forged Mg-6.7% Zn-1.3% Y-0.6% Zr (in wt.%) alloy has been investigated using slow strain rate tensile (SSRT) testing in 3.5 wt.% NaCl solution. The results demonstrated that the SCC susceptibility index (ISCC) of as-forged samples was 0.95 and its elongation-to-failure (epsilon(f)) was only 1.1%. After T4 treatment, the SCC resistance was remarkably improved. The ISCC and ef values of T4 samples were 0.86 and 3.4%, respectively. Fractography and surface observation indicated that the stress corrosion cracking mode for as-forged samples was dominated by transgranular and partially intergranular morphology, whereas the cracking mode for T4 samples was transgranular. In both cases, the main cracking mechanism was associated with hydrogen embrittlement (HE). Through alleviating the corrosion attack of Mg matrix, the influence of HE on the SCC resistance of T4 samples can be greatly suppressed.
description.department[wang, s. d. ; xu, d. k. ; wang, b. j. ; han, e. h.] chinese acad sci, inst met res, key lab nucl mat & safety assessment, 62 wencui rd, shenyang 110016, peoples r china ; [wang, s. d. ; dong, c.] dalian univ technol, sch mat sci & engn, lab mat modificat laser electron & ion beams, dalian 116024, peoples r china ; [sheng, l. y.] peking univ, shenzhen inst, shenzhen key lab human tissue regenerate & repair, shenzhen 518057, peoples r china
Subject AreaScience & Technology - Other Topics
Funding OrganizationNational Natural Science Foundation of China [51271183, 51301172]; National Basic Research Program of China (973 Program) [2013CB632205]; Innovation Fund of Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS)
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75795
Collection中国科学院金属研究所
Corresponding AuthorXu, DK (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Wang, S. D.,Xu, D. K.,Wang, B. J.,et al. Effect of solution treatment on stress corrosion cracking behavior of an as-forged Mg-Zn-Y-Zr alloy[J]. SCIENTIFIC REPORTS,2016,6.
APA Wang, S. D..,Xu, D. K..,Wang, B. J..,Sheng, L. Y..,Han, E. H..,...&Xu, DK .(2016).Effect of solution treatment on stress corrosion cracking behavior of an as-forged Mg-Zn-Y-Zr alloy.SCIENTIFIC REPORTS,6.
MLA Wang, S. D.,et al."Effect of solution treatment on stress corrosion cracking behavior of an as-forged Mg-Zn-Y-Zr alloy".SCIENTIFIC REPORTS 6(2016).
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