Zigzag Dissociation Mode of 〈c + a〉 Dislocations on the 101¯1 Plane in Magnesium Alloys
Fundamental understanding of the dissociation mode of 〈c + a〉 dislocations on the 101¯1 plane is required before the goal of improving the ductility of Mg alloys attained. In this study, our density-functional theory calculations reveal that the atoms in the 101¯1 plane slip along a zigzag trace thr...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/9646084 |
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| author | Hao Sun Zhigang Ding Shuang Li Xinping Zhang Enrique J. Lavernia Wei Liu |
| author_facet | Hao Sun Zhigang Ding Shuang Li Xinping Zhang Enrique J. Lavernia Wei Liu |
| author_sort | Hao Sun |
| collection | DOAJ |
| description | Fundamental understanding of the dissociation mode of 〈c + a〉 dislocations on the 101¯1 plane is required before the goal of improving the ductility of Mg alloys attained. In this study, our density-functional theory calculations reveal that the atoms in the 101¯1 plane slip along a zigzag trace through a low-energy pathway. We thus propose a novel zigzag dissociation mode based on this slip trace. In particular, the shuffling motion of atoms is observed at the position of stable stacking fault, which is closely related to the c/a ratio of the hexagonal closed-packed lattices. |
| format | Article |
| id | doaj-art-4ab412121892459bba71cb8dcafaa945 |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-4ab412121892459bba71cb8dcafaa9452025-08-20T02:38:03ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/96460849646084Zigzag Dissociation Mode of 〈c + a〉 Dislocations on the 101¯1 Plane in Magnesium AlloysHao Sun0Zhigang Ding1Shuang Li2Xinping Zhang3Enrique J. Lavernia4Wei Liu5Nano and Heterogeneous Materials Center, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, ChinaNano and Heterogeneous Materials Center, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, ChinaNano and Heterogeneous Materials Center, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, ChinaSchool of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, ChinaDepartment of Materials Science and Engineering, University of California, Irvine, CA 92697-1000, USANano and Heterogeneous Materials Center, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, ChinaFundamental understanding of the dissociation mode of 〈c + a〉 dislocations on the 101¯1 plane is required before the goal of improving the ductility of Mg alloys attained. In this study, our density-functional theory calculations reveal that the atoms in the 101¯1 plane slip along a zigzag trace through a low-energy pathway. We thus propose a novel zigzag dissociation mode based on this slip trace. In particular, the shuffling motion of atoms is observed at the position of stable stacking fault, which is closely related to the c/a ratio of the hexagonal closed-packed lattices.http://dx.doi.org/10.1155/2020/9646084 |
| spellingShingle | Hao Sun Zhigang Ding Shuang Li Xinping Zhang Enrique J. Lavernia Wei Liu Zigzag Dissociation Mode of 〈c + a〉 Dislocations on the 101¯1 Plane in Magnesium Alloys Advances in Materials Science and Engineering |
| title | Zigzag Dissociation Mode of 〈c + a〉 Dislocations on the 101¯1 Plane in Magnesium Alloys |
| title_full | Zigzag Dissociation Mode of 〈c + a〉 Dislocations on the 101¯1 Plane in Magnesium Alloys |
| title_fullStr | Zigzag Dissociation Mode of 〈c + a〉 Dislocations on the 101¯1 Plane in Magnesium Alloys |
| title_full_unstemmed | Zigzag Dissociation Mode of 〈c + a〉 Dislocations on the 101¯1 Plane in Magnesium Alloys |
| title_short | Zigzag Dissociation Mode of 〈c + a〉 Dislocations on the 101¯1 Plane in Magnesium Alloys |
| title_sort | zigzag dissociation mode of c a dislocations on the 101¯1 plane in magnesium alloys |
| url | http://dx.doi.org/10.1155/2020/9646084 |
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