| Deformation twinning induced decomposition of lamellar LPSO structure and its re-precipitation in an Mg-Zn-Y alloy | |
| Shao, X. H.; Zheng, S. J.; Chen, D.; Jin, Q. Q.; Peng, Z. Z.; Ma, X. L.; Ma, XL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China. | |
| 2016-07-20 | |
| Source Publication | SCIENTIFIC REPORTS
 |
| ISSN | 2045-2322 |
| Volume | 6 |
| Abstract | The high hardness or yield strength of an alloy is known to benefit from the presence of small-scale precipitation, whose hardening effect is extensively applied in various engineering materials. Stability of the precipitates is of critical importance in maintaining the high performance of a material under mechanical loading. The long period stacking ordered (LPSO) structures play an important role in tuning the mechanical properties of an Mg-alloy. Here, we report deformation twinning induces decomposition of lamellar LPSO structures and their re-precipitation in an Mg-Zn-Y alloy. Using atomic resolution scanning transmission electron microscopy (STEM), we directly illustrate that the misfit dislocations at the interface between the lamellar LPSO structure and the deformation twin is corresponding to the decomposition and re-precipitation of LPSO structure, owing to dislocation effects on redistribution of Zn/Y atoms. This finding demonstrates that deformation twinning could destabilize complex precipitates. An occurrence of decomposition and re-precipitation, leading to a variant spatial distribution of the precipitates under plastic loading, may significantly affect the precipitation strengthening. |
| description.department | [shao, x. h. ; zheng, s. j. ; chen, d. ; jin, q. q. ; peng, z. z. ; ma, x. l.] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china |
| Subject Area | Science & Technology - Other Topics |
| Funding Organization | National Natural Science Foundation of China [51301177]; Innovation Fund of IMR [SCJJ-2013-PY-08, 2015-PY08]; Fund of SYNL [2015FP18] |
| Indexed By | sci |
| Language | 英语 |
| WOS ID | WOS:000380055900001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/75790 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Ma, XL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China. |
| Recommended Citation GB/T 7714 | Shao, X. H.,Zheng, S. J.,Chen, D.,et al. Deformation twinning induced decomposition of lamellar LPSO structure and its re-precipitation in an Mg-Zn-Y alloy[J]. SCIENTIFIC REPORTS,2016,6. |
| APA | Shao, X. H..,Zheng, S. J..,Chen, D..,Jin, Q. Q..,Peng, Z. Z..,...&Ma, XL .(2016).Deformation twinning induced decomposition of lamellar LPSO structure and its re-precipitation in an Mg-Zn-Y alloy.SCIENTIFIC REPORTS,6. |
| MLA | Shao, X. H.,et al."Deformation twinning induced decomposition of lamellar LPSO structure and its re-precipitation in an Mg-Zn-Y alloy".SCIENTIFIC REPORTS 6(2016). |
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