High-Temperature Deformation Behavior of the AZ31 Alloy Processed by Double-Sided FSW Technology
Generally, AZ31 magnesium alloys have poor formation ability near room temperature. This material, with ultrafine grains, usually exhibits excellent superplasticity at high temperature. Therefore, the preparation of materials with suitable microstructures to obtain the superplasticity is an importan...
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| Format: | Article |
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MDPI AG
2022-02-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/3/422 |
| _version_ | 1797444975384854528 |
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| author | Suna Cha Hongliang Hou Yanling Zhang |
| author_facet | Suna Cha Hongliang Hou Yanling Zhang |
| author_sort | Suna Cha |
| collection | DOAJ |
| description | Generally, AZ31 magnesium alloys have poor formation ability near room temperature. This material, with ultrafine grains, usually exhibits excellent superplasticity at high temperature. Therefore, the preparation of materials with suitable microstructures to obtain the superplasticity is an important goal. In this study, the double-side FSW (Friction Stir Processing) process was applied on the AZ31Mg alloy to obtain the microstructure with ultra-fine grains. The effect of the FSW on the microstructure and the mechanism of microstructure evolution was elaborated. Meanwhile, the effects of deformation parameters, temperature, and strain rate on flow behavior and superplasticity of the joint were systematically and comparatively studied. It was found that the microstructure at the joint center with double-side FSW could obtain much finer grains with an average grain size of 9.6 μm compared with the rolled materials (25.9 μm). The high temperature deformation results showed that the optimum elongation (446%) was achieved with the deformation temperature of 450 °C and strain rate of 0.0003 s<sup>−1</sup>, which was far greater than the elongation of the room temperature (20.8%). The mechanism of parameters on deformation behavior of the joint samples was elaborated. |
| first_indexed | 2024-03-09T13:20:09Z |
| format | Article |
| id | doaj.art-2c65909673094b49a2290097890fe021 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T13:20:09Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-2c65909673094b49a2290097890fe0212023-11-30T21:30:57ZengMDPI AGMetals2075-47012022-02-0112342210.3390/met12030422High-Temperature Deformation Behavior of the AZ31 Alloy Processed by Double-Sided FSW TechnologySuna Cha0Hongliang Hou1Yanling Zhang2AVIC Manufacturing Technology Institute, Beijing 100024, ChinaAVIC Manufacturing Technology Institute, Beijing 100024, ChinaAVIC Manufacturing Technology Institute, Beijing 100024, ChinaGenerally, AZ31 magnesium alloys have poor formation ability near room temperature. This material, with ultrafine grains, usually exhibits excellent superplasticity at high temperature. Therefore, the preparation of materials with suitable microstructures to obtain the superplasticity is an important goal. In this study, the double-side FSW (Friction Stir Processing) process was applied on the AZ31Mg alloy to obtain the microstructure with ultra-fine grains. The effect of the FSW on the microstructure and the mechanism of microstructure evolution was elaborated. Meanwhile, the effects of deformation parameters, temperature, and strain rate on flow behavior and superplasticity of the joint were systematically and comparatively studied. It was found that the microstructure at the joint center with double-side FSW could obtain much finer grains with an average grain size of 9.6 μm compared with the rolled materials (25.9 μm). The high temperature deformation results showed that the optimum elongation (446%) was achieved with the deformation temperature of 450 °C and strain rate of 0.0003 s<sup>−1</sup>, which was far greater than the elongation of the room temperature (20.8%). The mechanism of parameters on deformation behavior of the joint samples was elaborated.https://www.mdpi.com/2075-4701/12/3/422AZ31Mg alloydouble-sided FSWhigh temperature deformationsuperplasticity |
| spellingShingle | Suna Cha Hongliang Hou Yanling Zhang High-Temperature Deformation Behavior of the AZ31 Alloy Processed by Double-Sided FSW Technology Metals AZ31Mg alloy double-sided FSW high temperature deformation superplasticity |
| title | High-Temperature Deformation Behavior of the AZ31 Alloy Processed by Double-Sided FSW Technology |
| title_full | High-Temperature Deformation Behavior of the AZ31 Alloy Processed by Double-Sided FSW Technology |
| title_fullStr | High-Temperature Deformation Behavior of the AZ31 Alloy Processed by Double-Sided FSW Technology |
| title_full_unstemmed | High-Temperature Deformation Behavior of the AZ31 Alloy Processed by Double-Sided FSW Technology |
| title_short | High-Temperature Deformation Behavior of the AZ31 Alloy Processed by Double-Sided FSW Technology |
| title_sort | high temperature deformation behavior of the az31 alloy processed by double sided fsw technology |
| topic | AZ31Mg alloy double-sided FSW high temperature deformation superplasticity |
| url | https://www.mdpi.com/2075-4701/12/3/422 |
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