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
ISSN2045-2322
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
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).
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