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Enhanced mechanical properties of Mg-3Al-1Zn alloy sheets through slope extrusion

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Abstract

A novel extrusion approach, entitled slope extrusion (SE), was employed to manufacture AZ31 (Mg-3Al-1Zn, wt%) alloy sheets. The microstructures, textures, and mechanical properties were investigated, compared with those of the AZ31 sheet fabricated by conventional extrusion (CE). Through the combination of finite element simulation and actual experiment, the ultimate results indicated that significant grain refinement (from 9.1 to 7.7 and 5.6 µm) and strong basal texture (from 12.6 to 17.6 and 19.5 mrd) were achieved by the SE process. The essence was associated with the additional introduced inclined interface in the process of SE, which could bring about more asymmetric deformation and stronger accumulated strain along the ND when compared with the process of CE. As a consequence, the SE sheets exhibited a higher yield strength (YS) and ultimate tensile strength (UTS) than the counterparts of the CE sheet, which was mainly assigned to the synergistic effects from grain refining and texture strengthening.

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Nos. U1764253, 51971044, 51901204, U1910213 52001037, and U207601), the National Defense Basic Scientific Research Program of China, the Chongqing Science and Technology Commission, China (No. cstc2017zdcy-zdzxX0006), the Chongqing Municipal Education Commission, China (No. KJZDK202001502), the Chongqing Scientific & Technological Talents Program, China (No. KJXX2017002), the Qinghai Scientific & Technological Program, China (No. 2018-GX-A1), the Zhejiang Provincial Natural Science Foundation, China (No. LGG21E050009), and the Research Start-up Funds of Shaoxing University, China (No. 20210007).

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Authors and Affiliations

  1. School of Mechanical and Electrical Engineering, Shaoxing University, Shaoxing, 312000, China

    Huabao Yang & Yanfu Chai

  2. Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China

    Yanfu Chai

  3. State Key Laboratory of Mechanical Transmissions, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China

    Bin Jiang, Chao He & Ming Yuan

  4. College of Materials Science and Engineering, Yunnan University, Kunming, 650091, China

    Junjie He

  5. School of Metallurgy and Material Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China

    Qingshan Yang

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  1. Huabao Yang
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Correspondence to Yanfu Chai or Bin Jiang.

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Yang, H., Chai, Y., Jiang, B. et al. Enhanced mechanical properties of Mg-3Al-1Zn alloy sheets through slope extrusion. Int J Miner Metall Mater 29, 1343–1350 (2022). https://doi.org/10.1007/s12613-021-2370-7

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  • DOI: https://doi.org/10.1007/s12613-021-2370-7

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