Revealing the role of pyramidal <c+a> slip in the high ductility of Mg-Li alloy
The high ductility of Mg-Li alloy has been mainly ascribed to a high activity of pyramidal <c+a> slip to accommodate plastic strain. In the present study, however, a quantitative analysis reveals that Li-addition can only slightly stimulate the activation of pyramidal <c+a> slip under co...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2024-03-01
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| Series: | Journal of Magnesium and Alloys |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956721002826 |
| _version_ | 1797210018744893440 |
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| author | Jing Xu Bo Guan Yunchang Xin Guangjie Huang Peidong Wu Qing Liu |
| author_facet | Jing Xu Bo Guan Yunchang Xin Guangjie Huang Peidong Wu Qing Liu |
| author_sort | Jing Xu |
| collection | DOAJ |
| description | The high ductility of Mg-Li alloy has been mainly ascribed to a high activity of pyramidal <c+a> slip to accommodate plastic strain. In the present study, however, a quantitative analysis reveals that Li-addition can only slightly stimulate the activation of pyramidal <c+a> slip under compression along the normal direction of a hot-rolled Mg-4.5 wt.% Li plate, with a relative activity of approximately 18%. Although the limited activity of pyramidal <c+a> slip alone cannot accommodate a large plastic strain, it effectively reduces the number of {101¯1}−{101¯2} double twins, which are believed to be favorable sites for crack initiation. The evidently reduced activity of double twins leads to a lower cracking tendency, and therefore improves ductility. |
| first_indexed | 2024-04-24T10:03:56Z |
| format | Article |
| id | doaj.art-2ffc0e777c8c4cb8802733cebfaf6c24 |
| institution | Directory Open Access Journal |
| issn | 2213-9567 |
| language | English |
| last_indexed | 2024-04-24T10:03:56Z |
| publishDate | 2024-03-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj.art-2ffc0e777c8c4cb8802733cebfaf6c242024-04-13T04:21:16ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672024-03-0112310211025Revealing the role of pyramidal <c+a> slip in the high ductility of Mg-Li alloyJing Xu0Bo Guan1Yunchang Xin2Guangjie Huang3Peidong Wu4Qing Liu5International Joint Laboratory for Light Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400030, ChinaInternational Joint Laboratory for Light Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400030, ChinaKey Laboratory for Light-weight Materials, Nanjing Tech University, Nanjing 210009, China; Corresponding author.International Joint Laboratory for Light Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400030, ChinaDepartment of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, CanadaInternational Joint Laboratory for Light Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China; Key Laboratory for Light-weight Materials, Nanjing Tech University, Nanjing 210009, ChinaThe high ductility of Mg-Li alloy has been mainly ascribed to a high activity of pyramidal <c+a> slip to accommodate plastic strain. In the present study, however, a quantitative analysis reveals that Li-addition can only slightly stimulate the activation of pyramidal <c+a> slip under compression along the normal direction of a hot-rolled Mg-4.5 wt.% Li plate, with a relative activity of approximately 18%. Although the limited activity of pyramidal <c+a> slip alone cannot accommodate a large plastic strain, it effectively reduces the number of {101¯1}−{101¯2} double twins, which are believed to be favorable sites for crack initiation. The evidently reduced activity of double twins leads to a lower cracking tendency, and therefore improves ductility.http://www.sciencedirect.com/science/article/pii/S2213956721002826Mg alloyPlasticityPlastic deformationSlipTwinning |
| spellingShingle | Jing Xu Bo Guan Yunchang Xin Guangjie Huang Peidong Wu Qing Liu Revealing the role of pyramidal <c+a> slip in the high ductility of Mg-Li alloy Journal of Magnesium and Alloys Mg alloy Plasticity Plastic deformation Slip Twinning |
| title | Revealing the role of pyramidal <c+a> slip in the high ductility of Mg-Li alloy |
| title_full | Revealing the role of pyramidal <c+a> slip in the high ductility of Mg-Li alloy |
| title_fullStr | Revealing the role of pyramidal <c+a> slip in the high ductility of Mg-Li alloy |
| title_full_unstemmed | Revealing the role of pyramidal <c+a> slip in the high ductility of Mg-Li alloy |
| title_short | Revealing the role of pyramidal <c+a> slip in the high ductility of Mg-Li alloy |
| title_sort | revealing the role of pyramidal c a slip in the high ductility of mg li alloy |
| topic | Mg alloy Plasticity Plastic deformation Slip Twinning |
| url | http://www.sciencedirect.com/science/article/pii/S2213956721002826 |
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