Paper Title:

Tensile Properties and Microstructure of ZK60 Magnesium Alloys at High Temperature

Periodical Applied Mechanics and Materials (Volumes 117 - 119)
Main Theme Materials and Computational Mechanics
Edited by Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
Pages 1113-1116
DOI 10.4028/www.scientific.net/AMM.117-119.1113
Citation Wen Jie Cheng et al., 2011, Applied Mechanics and Materials, 117-119, 1113
Online since October, 2011
Authors Wen Jie Cheng, Fu Xiao Chen
Keywords Grain Boundary Sliding (GBS), Microstructure, Tensile Properties, ZK60 Magnesium Alloy
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Abstract

Using tensile test of ZK60 magnesium alloy, the superplastic flow behavior was studied. The deformation temperature was set as 280℃, 310℃,340℃, 370℃ and 400℃ while strain rate was 1×10-1s-1, 1×10-2s-1, 1×10-3s-1 and 1×10-4s-1. The results showed that the perfect superplastic behavior was presented at 370℃ and =1×10-4s-1 and the maximum elongation could be 133.7%. The biggest factor of strain rate sensitivity was 0.62. The microstructure of the fracture was analyzed used SEM and the results showed that the main deformation mechanism of ZK60 magnesium alloy was grain boundary sliding.