Influence of Deformation Conditions on the Critical Damage Factor of AZ31 Magnesium Alloy
The influence of deformation conditions on the critical damage factor of AZ31 magnesium alloy was analyzed in this paper. Physical experiments and numerical simulation were used to study the critical damage factor. Compression test was carried out using a Gleeble 1500 device at temperatures between...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/3071495 |
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| author | Li-juan Pang Xin Shang Xuefeng Zhang |
| author_facet | Li-juan Pang Xin Shang Xuefeng Zhang |
| author_sort | Li-juan Pang |
| collection | DOAJ |
| description | The influence of deformation conditions on the critical damage factor of AZ31 magnesium alloy was analyzed in this paper. Physical experiments and numerical simulation were used to study the critical damage factor. Compression test was carried out using a Gleeble 1500 device at temperatures between 250°C and 400°C, as well as strain rates from 0.01 s−1 to 1 s−1. True stress-strain curves of samples were obtained. Based on experimental data, an Arrhenius constitutive model was constructed. Material performance parameters and constitutive model were inputted into the finite element program DEFORM. Simulation results show that the maximum damage appears on the outer edge of the upsetting drum, and damage softening behavior is more sensitive to strain rate. According to the concept of damage sensitive rate, its values were computed. The intersection of line fitted and horizontal axis was obtained in the fracture step, and its relative maximum damage value was as the critical damage factor. The distribution of the critical damage value shows that it is not a constant but fluctuates within the range of 0.1445–0.3759, and it is more sensitive to strain rate compared with temperature. |
| format | Article |
| id | doaj-art-90428247cd9e41b8b68708519e119979 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-90428247cd9e41b8b68708519e1199792025-02-03T01:21:08ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/30714953071495Influence of Deformation Conditions on the Critical Damage Factor of AZ31 Magnesium AlloyLi-juan Pang0Xin Shang1Xuefeng Zhang2Panzhihua University, Panzhihua 617000, ChinaDongguan University of Technology, Dongguan 523808, ChinaPanzhihua University, Panzhihua 617000, ChinaThe influence of deformation conditions on the critical damage factor of AZ31 magnesium alloy was analyzed in this paper. Physical experiments and numerical simulation were used to study the critical damage factor. Compression test was carried out using a Gleeble 1500 device at temperatures between 250°C and 400°C, as well as strain rates from 0.01 s−1 to 1 s−1. True stress-strain curves of samples were obtained. Based on experimental data, an Arrhenius constitutive model was constructed. Material performance parameters and constitutive model were inputted into the finite element program DEFORM. Simulation results show that the maximum damage appears on the outer edge of the upsetting drum, and damage softening behavior is more sensitive to strain rate. According to the concept of damage sensitive rate, its values were computed. The intersection of line fitted and horizontal axis was obtained in the fracture step, and its relative maximum damage value was as the critical damage factor. The distribution of the critical damage value shows that it is not a constant but fluctuates within the range of 0.1445–0.3759, and it is more sensitive to strain rate compared with temperature.http://dx.doi.org/10.1155/2018/3071495 |
| spellingShingle | Li-juan Pang Xin Shang Xuefeng Zhang Influence of Deformation Conditions on the Critical Damage Factor of AZ31 Magnesium Alloy Advances in Materials Science and Engineering |
| title | Influence of Deformation Conditions on the Critical Damage Factor of AZ31 Magnesium Alloy |
| title_full | Influence of Deformation Conditions on the Critical Damage Factor of AZ31 Magnesium Alloy |
| title_fullStr | Influence of Deformation Conditions on the Critical Damage Factor of AZ31 Magnesium Alloy |
| title_full_unstemmed | Influence of Deformation Conditions on the Critical Damage Factor of AZ31 Magnesium Alloy |
| title_short | Influence of Deformation Conditions on the Critical Damage Factor of AZ31 Magnesium Alloy |
| title_sort | influence of deformation conditions on the critical damage factor of az31 magnesium alloy |
| url | http://dx.doi.org/10.1155/2018/3071495 |
| work_keys_str_mv | AT lijuanpang influenceofdeformationconditionsonthecriticaldamagefactorofaz31magnesiumalloy AT xinshang influenceofdeformationconditionsonthecriticaldamagefactorofaz31magnesiumalloy AT xuefengzhang influenceofdeformationconditionsonthecriticaldamagefactorofaz31magnesiumalloy |