Research on plastic deformation behavior of magnesium alloy based on crystal plasticity theory [基于晶体塑性理论镁合金塑性变形行为研究概述]

作者：Liu S.; Yang C.; Peng Y.; Gao X.; Wu L.; Shi B.^*

来源：Journal of Functional Materials, 2018, 49(10): 10043-10052 and 10058.

DOI：10.3969/j.issn.1001-9731.2018.10.008

• Magnesium alloy
• Plastic deformation
• Slip
• Twinning

In this paper, the basic characteristics of magnesium alloy crystalare introduced and the two kinds of deformation mechanisms of slip and twin in the plastic deformation process of magnesium alloyare summarized. The plastic deformation of magnesium alloy is the result of the competition between the two mechanisms of slip and twin. The phenomenon of twinning and detwinning in the plastic deformation of magnesium alloyare explained and the classical plasticity model and theory, such as Taylor model, Sachs model, crystalline plastic finite element model and viscoplastic self-consistent model are briefly introduced. The theoretical study on the plasticity of magnesium alloyis introduced. It includes the mechanical properties of plastic deformation, and the initiation and texture evolution of various slip and twinning mechanisms during crystal plastic deformation. Simulated by using VPSC and CPFE, the influence of various deformation mechanisms during plastic deformation is analyzed in macroscopic, mesoscopic and microscopic scale.

• 单位
  机械结构强度与振动国家重点实验室