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Effects of Temperature and Strain Rate on the High-Temperature Workability of Strip-Cast Mg-3Al-1Zn Alloy

  • B.H. Lee
  • W. Bang
  • S. Ahn
  • C.S. Lee
Article

Abstract

In this study, high-temperature workability of a strip-cast Mg-3Al-1Zn (AZ31) alloy was investigated on the basis of the processing map and microstructural analysis. To obtain the processing map, a series of isothermal compression tests was carried out up to a strain of 0.5 at temperatures of 473 to 673 K and strain rates of 0.01 to 10 s−1. It was found that the maximum efficiency indicating the optimum processing condition was obtained at 573 K and 10 s−1, and the processing instability occurred around the region of 473 K and 0.01 s−1. The possible high-temperature deformation mechanisms were also discussed in relation to initial texture development and twin formation.

Keywords

AZ31 Alloy Critical Resolve Shear Stress Basal Slip Twin Formation Pyramidal Plane 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgment

This work was supported by a Korea Science and Engineering Foundation (KOSEF) grant funded by the Korean government (MOST) (Grant No. R0A-2003-000-10309-0).

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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2008

Authors and Affiliations

  1. 1.Department of Materials Science and EngineeringPohang University of Science and TechnologyPohangKorea
  2. 2.Materials and Processes Research Center, Magnesium Project TeamResearch Institute of Industrial Science and TechnologyPohangKorea

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