Effect of solution treatment on stress corrosion cracking behavior of an as-forged Mg-Zn-Y-Zr alloy

IMR OpenIR

	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
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	6
摘要	Effect 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.
部门归属	[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
学科领域	Science & Technology - Other Topics
资助者	National 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)
收录类别	sci
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75795
专题	中国科学院金属研究所
通讯作者	Xu, DK (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China.
推荐引用方式 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).