High strain rate superplasticity of rolled AZ91 magnesium alloy
作者： Q WANG
DOI: 10.1016/S1001-0521(08)60028-5
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摘要: Abstract The high strain rate superplastic deformation properties and characteristics of a rolled AZ91 magnesium alloy at temperatures ranging from 623 to 698 K (0.67Tm−0.76Tm) rates 10−3 1 s−1 were investigated. possesses excellent superplasticity with the maximum elongation 455% s−1, its sensitivity m is up 0.64. dominant mechanism responsible for still grain boundary sliding (GBS), dislocation creep considered as main accommodation mechanism.
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