Paper Title:
Mechanical Properties and Damping Behavior of Magnesium Alloys Processed by Equal Channel Angular Pressing
  Abstract

Equal channel angular pressing (ECAP) was applied to commercial pure magnesium alloy, Mg-1wt%Si alloy and Mg-4.2wt%Zn-0.7wt%Y alloy. With increasing ECAP passes, both tensile strength and ductility of the alloys are increased, which are mainly resulted from the grain refinement. At the same time, for the Mg-Zn-Y alloy with inherent low damping capacity, damping capacity is increased after ECAP passes, however, the damping capacity is still low even after 6-pass ECAP. While for the commercial pure magnesium and Mg-Si alloy with inherent high damping capacity, although the damping capacity is decreased obviously after ECAP, Q-1 is still greater than 0.01. The damping capacity after ECAP processing is mainly influenced by grain size and deformation microstructure. ECAP paves a way for the development of magnesium alloys with high strength and high ductility combined with high damping capacity.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
1685-1690
DOI
10.4028/www.scientific.net/MSF.539-543.1685
Citation
M. Y. Zheng, X. S. Hu, S. W. Xu, X. G. Qiao, K. Wu, S. Kamado, Y. Kojima, "Mechanical Properties and Damping Behavior of Magnesium Alloys Processed by Equal Channel Angular Pressing", Materials Science Forum, Vols. 539-543, pp. 1685-1690, 2007
Online since
March 2007
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$32.00
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