Paper Title:
Effect of Cooling Rate on the Microstructure and Mechanical Properties of ZK60 Alloy
  Abstract

Microstructure and mechanical properties of Mg-6.0wt%Zn-0.5wt%Zr (ZK60) alloy were studied as a function of cooling rate. The temperature field and cooling rate during the casting process were investigated by use of finite element analysis (FEA) simulation. The results showed that the microstructure was refined and the eutectic phase distributed much uniformly with the increase of cooling rate. The increase of yield strength, ultimate strength and elongation can be ascribed to the strengthening effect of fine grain. Relationship between grain size and yield strength is consistent with the Hall-Petch formalism: 1/ 2 80.37 132.56 − = + d y σ .

  Info
Periodical
Materials Science Forum (Volumes 546-549)
Edited by
Yafang Han et al.
Pages
319-322
DOI
10.4028/www.scientific.net/MSF.546-549.319
Citation
J. B. Lin, Q. D. Wang, L. M. Peng, Y. Zhou, W. J. Ding, "Effect of Cooling Rate on the Microstructure and Mechanical Properties of ZK60 Alloy", Materials Science Forum, Vols. 546-549, pp. 319-322, 2007
Online since
May 2007
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Price
$32.00
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