Molecular dynamics study on the relationship between phase transition mechanism and loading direction of AZ31
Abstract To develop and design mg-based nanoalloys with excellent properties, it is necessary to explore the forming process. In this paper, to explore the effect of different loading directions on the phase transformation of magnesium alloy, the model of AZ31 magnesium alloy was established, the pr...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-08-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-96469-3 |
| _version_ | 1818845170464980992 |
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| author | Qianhua Yang Chun Xue Zhibing Chu Yugui Li Lifeng Ma Hong Gao |
| author_facet | Qianhua Yang Chun Xue Zhibing Chu Yugui Li Lifeng Ma Hong Gao |
| author_sort | Qianhua Yang |
| collection | DOAJ |
| description | Abstract To develop and design mg-based nanoalloys with excellent properties, it is necessary to explore the forming process. In this paper, to explore the effect of different loading directions on the phase transformation of magnesium alloy, the model of AZ31 magnesium alloy was established, the process of Uniaxial Compression (UC) of magnesium alloy in different directions was simulated, the changes of atomic position and phase structure were observed, and the phase transformation mechanism of AZ31 magnesium alloy under uniaxial compression under different loading directions was summarized. The conclusions are as follows: the stress and strain, potential energy and volume change, void evolution, phase structure change and dislocation evolution of magnesium alloy are consistent, and there is no significant difference. In the process of uniaxial compression, the phase transformation of hexagonal closely packed (HCP) → face-centered cubic (FCC) is the main, and its structure evolves into HCP → Other → FCC. Shockley partial dislocations always precede FCC stacking faults by about 4.5%, and Shockley partial dislocations surround FCC stacking faults. In this paper, the phase transformation mechanism of AZ31 magnesium alloy under uniaxial compression under different loading directions is summarized, which provides a theoretical basis for the processing and development of magnesium-based nanoalloys. |
| first_indexed | 2024-12-19T05:25:24Z |
| format | Article |
| id | doaj.art-4fcd80527a624df091d19254c228af9e |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-19T05:25:24Z |
| publishDate | 2021-08-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj.art-4fcd80527a624df091d19254c228af9e2022-12-21T20:34:23ZengNature PortfolioScientific Reports2045-23222021-08-011111910.1038/s41598-021-96469-3Molecular dynamics study on the relationship between phase transition mechanism and loading direction of AZ31Qianhua Yang0Chun Xue1Zhibing Chu2Yugui Li3Lifeng Ma4Hong Gao5College of Materials Science and Engineering, Taiyuan University of Science and TechnologyCollege of Materials Science and Engineering, Taiyuan University of Science and TechnologyCollege of Materials Science and Engineering, Taiyuan University of Science and TechnologyCollege of Materials Science and Engineering, Taiyuan University of Science and TechnologyCollege of Mechanical Engineering, Taiyuan University of Science and TechnologyJiangsu Wujin Stainless Steel Co., LtdAbstract To develop and design mg-based nanoalloys with excellent properties, it is necessary to explore the forming process. In this paper, to explore the effect of different loading directions on the phase transformation of magnesium alloy, the model of AZ31 magnesium alloy was established, the process of Uniaxial Compression (UC) of magnesium alloy in different directions was simulated, the changes of atomic position and phase structure were observed, and the phase transformation mechanism of AZ31 magnesium alloy under uniaxial compression under different loading directions was summarized. The conclusions are as follows: the stress and strain, potential energy and volume change, void evolution, phase structure change and dislocation evolution of magnesium alloy are consistent, and there is no significant difference. In the process of uniaxial compression, the phase transformation of hexagonal closely packed (HCP) → face-centered cubic (FCC) is the main, and its structure evolves into HCP → Other → FCC. Shockley partial dislocations always precede FCC stacking faults by about 4.5%, and Shockley partial dislocations surround FCC stacking faults. In this paper, the phase transformation mechanism of AZ31 magnesium alloy under uniaxial compression under different loading directions is summarized, which provides a theoretical basis for the processing and development of magnesium-based nanoalloys.https://doi.org/10.1038/s41598-021-96469-3 |
| spellingShingle | Qianhua Yang Chun Xue Zhibing Chu Yugui Li Lifeng Ma Hong Gao Molecular dynamics study on the relationship between phase transition mechanism and loading direction of AZ31 Scientific Reports |
| title | Molecular dynamics study on the relationship between phase transition mechanism and loading direction of AZ31 |
| title_full | Molecular dynamics study on the relationship between phase transition mechanism and loading direction of AZ31 |
| title_fullStr | Molecular dynamics study on the relationship between phase transition mechanism and loading direction of AZ31 |
| title_full_unstemmed | Molecular dynamics study on the relationship between phase transition mechanism and loading direction of AZ31 |
| title_short | Molecular dynamics study on the relationship between phase transition mechanism and loading direction of AZ31 |
| title_sort | molecular dynamics study on the relationship between phase transition mechanism and loading direction of az31 |
| url | https://doi.org/10.1038/s41598-021-96469-3 |
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