Effect of deformation temperature on high temperature tensile deformation behavior of GWZ1031K magnesium alloy

doi:10.13251/j.issn.0254-6051.2021.01.001

Abstract

Abstract: High temperature deformation behavior of GWZ1031K magnesium alloy was investigated by high temperature tensile test at 250-400 ℃ and the deformation rate of 0.2 mm/min.Scanning electron microscope (SEM) and X-ray energy spectroscopy (EDS) were used to observe the microstructure and tensile fracture.The results show that the peak value appears in all the high temperature tensile stress-strain curves at different temperatures,and the peak stress decreases with the increase of deformation temperature,meanwhile the plasticity increases sharply,particularly superplasticity occurs at 400 ℃.Combining the analyse of microstructure and fracture morphology,it can be concluded that the GWZ1031K magnesium alloy has good heat resistance in the temperature range from 250 ℃ to 350 ℃.

Key words: GWZ1031K magnesium alloy, high temperature tensile test, deformation temperature, deformation behavior, LPSO phase

CLC Number:

TG146.2

Huang Yuanchun, Luo Xiaoyu, Liu Yu, Wang Xu, Wang Zhou. Effect of deformation temperature on high temperature tensile deformation behavior of GWZ1031K magnesium alloy[J]. Heat Treatment of Metals, 2021, 46(1): 1-6.

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