Effect of solution treatment on the fatigue behavior of an as-forged Mg-Zn-Y-Zr alloy

IMR OpenIR

	Effect of solution treatment on the fatigue behavior of an as-forged Mg-Zn-Y-Zr alloy
	Wang, S. D.; Xu, D. K.; Wang, B. J.; Han, E. H.; Dong, C.; Xu, DK (reprint author), Chinese Acad Sci, Inst Met Res, Environm Corros Ctr, 62 Wencui Rd, Shenyang 110016, Peoples R China.
	2016-04-01
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	6
摘要	Through investigating and comparing the fatigue behavior of an as-forged Mg-6.7Zn-1.3Y-0.6Zr (wt.%) alloy before and after solid solution treatment (T4) in laboratory air, the effect of T4 treatment on fatigue crack initiation was disclosed. S-N curves illustrated that the fatigue strength of as-forged samples was 110 MPa, whereas the fatigue strength of T4 samples was only 80 MPa. Observations to fracture surfaces demonstrated that for as-forged samples, fatigue crack initiation sites were covered with a layer of oxide film. However, due to the coarse grain structure and the dissolution of MgZn2 precipitates, the activation and accumulation of {10-12} twins in T4 samples were much easier, resulting in the preferential fatigue crack initiation at cracked twin boundaries (TBs). Surface characterization demonstrated that TB cracking was mainly ascribed to the incompatible plastic deformation in the twinned area and nearby alpha-Mg matrix.
部门归属	[wang, s. d. ; xu, d. k. ; wang, b. j. ; han, e. h.] chinese acad sci, inst met res, environm corros ctr, 62 wencui rd, shenyang 110016, peoples r china ; [wang, s. d. ; dong, c.] dalian univ technol, lab mat modificat laser electron & ion beams, sch mat sci & engn, dalian 116024, peoples r china
学科领域	Science & Technology - Other Topics
资助者	National Natural Science Foundation of China [51271183, 51171192, 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
WOS记录号	WOS:000373205900001
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75929
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, Environm Corros Ctr, 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 the fatigue 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.,Han, E. H.,Dong, C.,&Xu, DK .(2016).Effect of solution treatment on the fatigue behavior of an as-forged Mg-Zn-Y-Zr alloy.SCIENTIFIC REPORTS,6.
MLA	Wang, S. D.,et al."Effect of solution treatment on the fatigue behavior of an as-forged Mg-Zn-Y-Zr alloy".SCIENTIFIC REPORTS 6(2016).