论文信息 - Relative Activities of Deformation Modes in AZ31 Magnesium Alloy Predicted by Mesoscopic Crystalline Model

Relative Activities of Deformation Modes in AZ31 Magnesium Alloy Predicted by Mesoscopic Crystalline Model

A mesoscopic crystalline model was proposed to quantitatively analyze the relative activities of deformation modes involved in the plastic deformation of an AZ31 magnesium alloy at room temperature. The plastic response of a cast AZ31 magnesium alloy with random texture can be well predicted by this model. It is demonstrated that the remarkable difference of relative activities of pyramidal slip should be attributed to the different strain hardening behavior in tension and compression. Further TEM micrographs shows the occurrence of pyramidal slip in compression, which confirms the validity of the proposed model.

D. Yin | J. Liu | Xin Chen

[1] Edward Ghali,et al. Magnesium and Magnesium Alloys , 2011 .

[2] D. Yin,et al. On tension–compression yield asymmetry in an extruded Mg–3Al–1Zn alloy , 2009 .

[3] D. Yin,et al. Effect of grain size on mechanical property of Mg–3Al–1Zn alloy , 2008 .

[4] S. Choi,et al. Simulation of deformation twins and deformation texture in an AZ31 Mg alloy under uniaxial compression , 2007 .

[5] M. Barnett,et al. A semianalytical sachs model for the flow stress of a magnesium alloy , 2006 .

[6] S. Agnew,et al. Plastic anisotropy and the role of non-basal slip in magnesium alloy AZ31B , 2005 .

[7] P. Uggowitzer,et al. Mechanical anisotropy of extruded Mg-6% Al-1% Zn alloy , 2004 .

[8] Lallit Anand,et al. A constitutive model for hcp materials deforming by slip and twinning: application to magnesium alloy AZ31B , 2003 .

[9] K. Maruyama,et al. The activity of non-basal slip systems and dynamic recovery at room temperature in fine-grained AZ31B magnesium alloys , 2003 .

[10] T. Mukai,et al. Ductility enhancement in AZ31 magnesium alloy by controlling its grain structure , 2001 .

[11] R. H. Wagoner,et al. Hardening evolution of AZ31B Mg sheet , 2007 .

[12] R. Cahn,et al. Materials science and engineering , 2023, Nature.