Quasi-In-Situ Analysis of As-Rolled Microstructure of Magnesium Alloys during Annealing and Subsequent Plastic Deformation
In this paper, quasi-in situ experiments were carried out on rolled AZ31 magnesium alloy sheets to track the recrystallization behavior of the rolled microstructure during the heat treatment process and the plastic deformation behavior during the stretching process. The as-rolled microstructures are...
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MDPI AG
2022-09-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/19/6581 |
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| author | Jiafei Deng Jing Tian Yancai Zhou Yuanying Chang Wei Liang Jinyao Ma |
| author_facet | Jiafei Deng Jing Tian Yancai Zhou Yuanying Chang Wei Liang Jinyao Ma |
| author_sort | Jiafei Deng |
| collection | DOAJ |
| description | In this paper, quasi-in situ experiments were carried out on rolled AZ31 magnesium alloy sheets to track the recrystallization behavior of the rolled microstructure during the heat treatment process and the plastic deformation behavior during the stretching process. The as-rolled microstructures are classified into five characteristics and their plastic deformation behaviors are described. The research shows that annealing recrystallization leads to grain reorganization, resulting in the diversity of grain orientation, and it is easier to activate basal slip. Recrystallization preferentially nucleates in the regions with high stress, while it is difficult for recrystallization to occur in regions with low stress, which leads to the uneven distribution of the as-rolled structure of magnesium alloys. Slip can be better transmitted between small grains, while deformation between large and small grains is difficult to transmit, which can easily lead to the generation of ledges. Incomplete recrystallization is more likely to accumulate dislocations than complete recrystallization, and ledges are formed in the early stage of deformation. Microcracks are more likely to occur between strain-incompatible grains. It is of great significance to promote the application of rolled AZ31 magnesium alloys for the development of heat treatment and subsequent plastic working of rolled magnesium alloys. |
| first_indexed | 2024-03-09T21:32:42Z |
| format | Article |
| id | doaj.art-af0d010df0404ff5b7cd7f6f6b3f1934 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T21:32:42Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-af0d010df0404ff5b7cd7f6f6b3f19342023-11-23T20:53:12ZengMDPI AGMaterials1996-19442022-09-011519658110.3390/ma15196581Quasi-In-Situ Analysis of As-Rolled Microstructure of Magnesium Alloys during Annealing and Subsequent Plastic DeformationJiafei Deng0Jing Tian1Yancai Zhou2Yuanying Chang3Wei Liang4Jinyao Ma5College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaInstrumental Analysis Center, Taiyuan University of Technology, Taiyuan 030024, ChinaIn this paper, quasi-in situ experiments were carried out on rolled AZ31 magnesium alloy sheets to track the recrystallization behavior of the rolled microstructure during the heat treatment process and the plastic deformation behavior during the stretching process. The as-rolled microstructures are classified into five characteristics and their plastic deformation behaviors are described. The research shows that annealing recrystallization leads to grain reorganization, resulting in the diversity of grain orientation, and it is easier to activate basal slip. Recrystallization preferentially nucleates in the regions with high stress, while it is difficult for recrystallization to occur in regions with low stress, which leads to the uneven distribution of the as-rolled structure of magnesium alloys. Slip can be better transmitted between small grains, while deformation between large and small grains is difficult to transmit, which can easily lead to the generation of ledges. Incomplete recrystallization is more likely to accumulate dislocations than complete recrystallization, and ledges are formed in the early stage of deformation. Microcracks are more likely to occur between strain-incompatible grains. It is of great significance to promote the application of rolled AZ31 magnesium alloys for the development of heat treatment and subsequent plastic working of rolled magnesium alloys.https://www.mdpi.com/1996-1944/15/19/6581plastic behaviorrecrystallizationrolled structureledgescracks |
| spellingShingle | Jiafei Deng Jing Tian Yancai Zhou Yuanying Chang Wei Liang Jinyao Ma Quasi-In-Situ Analysis of As-Rolled Microstructure of Magnesium Alloys during Annealing and Subsequent Plastic Deformation Materials plastic behavior recrystallization rolled structure ledges cracks |
| title | Quasi-In-Situ Analysis of As-Rolled Microstructure of Magnesium Alloys during Annealing and Subsequent Plastic Deformation |
| title_full | Quasi-In-Situ Analysis of As-Rolled Microstructure of Magnesium Alloys during Annealing and Subsequent Plastic Deformation |
| title_fullStr | Quasi-In-Situ Analysis of As-Rolled Microstructure of Magnesium Alloys during Annealing and Subsequent Plastic Deformation |
| title_full_unstemmed | Quasi-In-Situ Analysis of As-Rolled Microstructure of Magnesium Alloys during Annealing and Subsequent Plastic Deformation |
| title_short | Quasi-In-Situ Analysis of As-Rolled Microstructure of Magnesium Alloys during Annealing and Subsequent Plastic Deformation |
| title_sort | quasi in situ analysis of as rolled microstructure of magnesium alloys during annealing and subsequent plastic deformation |
| topic | plastic behavior recrystallization rolled structure ledges cracks |
| url | https://www.mdpi.com/1996-1944/15/19/6581 |
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