Towards Understanding Relationships between Tension Property and Twinning Boundaries in Magnesium Alloy
Although pre-induced <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>{</mo><mn>10</mn><mo> </mo><mover><mn>12</mn><mo>¯</mo></mover&...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/5/745 |
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| author | Jianhui Bai Pengfei Yang Zhiyuan Yang Qi Sun Li Tan |
| author_facet | Jianhui Bai Pengfei Yang Zhiyuan Yang Qi Sun Li Tan |
| author_sort | Jianhui Bai |
| collection | DOAJ |
| description | Although pre-induced <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>{</mo><mn>10</mn><mo> </mo><mover><mn>12</mn><mo>¯</mo></mover><mo>}</mo></mrow></semantics></math></inline-formula> twins could strengthen magnesium and its alloys, the origin of such a strengthening phenomenon remains questionable. This is because twins can simultaneously change the size of grains and the texture features of the initial material. In the present work, the effect of pre-induced <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>{</mo><mn>10</mn><mover accent="true"><mn>1</mn><mo>¯</mo></mover><mn>2</mn><mo>}</mo></mrow></semantics></math></inline-formula> twins on the tension property of an extruded magnesium alloy has been investigated through a combination of electron backscatter diffraction, transmission electron microscope, and mechanical tests. Samples with and without <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>{</mo><mn>10</mn><mover accent="true"><mn>1</mn><mo>¯</mo></mover><mn>2</mn><mo>}</mo></mrow></semantics></math></inline-formula> twinning boundaries, but possessing an almost identical texture characteristic, were prepared by pre-compression perpendicular to the extrusion direction. Subsequently, these pre-strained samples were tensioned along the extrusion direction. The results indicate that the pre-induced <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>{</mo><mn>10</mn><mover accent="true"><mn>1</mn><mo>¯</mo></mover><mn>2</mn><mo>}</mo></mrow></semantics></math></inline-formula> twinning boundaries can indeed enhance the tension strength of magnesium alloys, but only slightly. The effect is closely associated with the amount of pre-strain. Correspondingly, the possible mechanisms behind such phenomena are given and discussed. |
| first_indexed | 2024-03-10T11:45:59Z |
| format | Article |
| id | doaj.art-2a11bd3cb0d041549044a9bff2fe9e0b |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T11:45:59Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-2a11bd3cb0d041549044a9bff2fe9e0b2023-11-21T18:03:36ZengMDPI AGMetals2075-47012021-04-0111574510.3390/met11050745Towards Understanding Relationships between Tension Property and Twinning Boundaries in Magnesium AlloyJianhui Bai0Pengfei Yang1Zhiyuan Yang2Qi Sun3Li Tan4School of Aviation and Mechanical Engineering, Changzhou Institute of Technology, Changzhou 213032, ChinaTribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610036, ChinaKey Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610036, ChinaKey Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610036, ChinaSchool of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400044, ChinaAlthough pre-induced <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>{</mo><mn>10</mn><mo> </mo><mover><mn>12</mn><mo>¯</mo></mover><mo>}</mo></mrow></semantics></math></inline-formula> twins could strengthen magnesium and its alloys, the origin of such a strengthening phenomenon remains questionable. This is because twins can simultaneously change the size of grains and the texture features of the initial material. In the present work, the effect of pre-induced <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>{</mo><mn>10</mn><mover accent="true"><mn>1</mn><mo>¯</mo></mover><mn>2</mn><mo>}</mo></mrow></semantics></math></inline-formula> twins on the tension property of an extruded magnesium alloy has been investigated through a combination of electron backscatter diffraction, transmission electron microscope, and mechanical tests. Samples with and without <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>{</mo><mn>10</mn><mover accent="true"><mn>1</mn><mo>¯</mo></mover><mn>2</mn><mo>}</mo></mrow></semantics></math></inline-formula> twinning boundaries, but possessing an almost identical texture characteristic, were prepared by pre-compression perpendicular to the extrusion direction. Subsequently, these pre-strained samples were tensioned along the extrusion direction. The results indicate that the pre-induced <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>{</mo><mn>10</mn><mover accent="true"><mn>1</mn><mo>¯</mo></mover><mn>2</mn><mo>}</mo></mrow></semantics></math></inline-formula> twinning boundaries can indeed enhance the tension strength of magnesium alloys, but only slightly. The effect is closely associated with the amount of pre-strain. Correspondingly, the possible mechanisms behind such phenomena are given and discussed.https://www.mdpi.com/2075-4701/11/5/745twintwinning boundarytexturestrengthmagnesium alloy |
| spellingShingle | Jianhui Bai Pengfei Yang Zhiyuan Yang Qi Sun Li Tan Towards Understanding Relationships between Tension Property and Twinning Boundaries in Magnesium Alloy Metals twin twinning boundary texture strength magnesium alloy |
| title | Towards Understanding Relationships between Tension Property and Twinning Boundaries in Magnesium Alloy |
| title_full | Towards Understanding Relationships between Tension Property and Twinning Boundaries in Magnesium Alloy |
| title_fullStr | Towards Understanding Relationships between Tension Property and Twinning Boundaries in Magnesium Alloy |
| title_full_unstemmed | Towards Understanding Relationships between Tension Property and Twinning Boundaries in Magnesium Alloy |
| title_short | Towards Understanding Relationships between Tension Property and Twinning Boundaries in Magnesium Alloy |
| title_sort | towards understanding relationships between tension property and twinning boundaries in magnesium alloy |
| topic | twin twinning boundary texture strength magnesium alloy |
| url | https://www.mdpi.com/2075-4701/11/5/745 |
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