Acta Metallurgica Sinica (English Letters)

, Volume 32, Issue 2, pp 235–244 | Cite as

Microstructure and Mechanical Properties of AZ31 Mg Alloy Fabricated by Pre-compression and Frustum Shearing Extrusion

  • Kun Sheng
  • Li-Wei LuEmail author
  • Yao Xiang
  • Min Ma
  • Zhong-Chang WangEmail author


The AZ31 Mg alloys were processed by 6% pre-compression and frustum shearing extrusion at various temperatures, and the microstructure, texture and mechanical properties of the resulting alloys are systematically investigated. The results show that the grain size monotonically increases from 6.4 to 12.6 μm and the texture intensity increases from 6.7 to 9.6 with the increase in the extrusion temperature. The combining effect of the pre-twinning and the frustum shearing deformation is found to contribute to the development of the weak basal texture in Mg alloys. The Mg alloy sheet produced at the extrusion temperature of 563 K exhibits excellent mechanical properties. The yield strength, ultimate tensile strength and elongation for the extruded alloys are 189.6 MPa, 288.4 MPa and 24.9%, respectively. Such improved mechanical properties are comparable or even superior to those of the alloys subjected to other deformation techniques, rendering the pre-compression and frustum shearing extrusion a promising way for further tailoring properties of Mg alloys.


AZ31 magnesium alloy Frustum shearing extrusion Microstructure Mechanical property Dynamic recrystallization 



This work was partly supported by the National Natural Science Foundation of China (Grant Nos. 51505143 and 51704112), the Scientific Research Fund of Hunan Provincial Education Department (Grant No. 17B089) and the financial supports from the China Postdoctoral Science Foundation (Grant No. 2016T90759).


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Copyright information

© The Chinese Society for Metals (CSM) and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut MaterialHunan University of Science and TechnologyXiangtanChina
  2. 2.College of Materials Science and EngineeringHunan University of Science and TechnologyXiangtanChina
  3. 3.Department of Quantum Materials Science and TechnologyInternational Iberian Nanotechnology Laboratory (INL)BragaPortugal

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