Paper Title:
Effects of Heat Treatment on a High-Pressure Die-Cast Mg-La-Y Alloy
  Abstract

In this study effects of heat treatments on the creep resistance at 177°C/90MPa of a high-pressure die-cast Mg-2.70La-1.50Y (wt.%) alloy were examined. It was found that ageing at 160°C for 24 h (T5) or a solution treatment at 520°C for 1 h (T4) improved creep resistance and caused no blistering on the surface or dimensional changes to the die-cast specimens. TEM was used to characterize the microstructures of heat-treated samples. Improvements to creep resistance might be attributed to the pinning or otherwise retarding of dislocation motion by precipitates and/or solute atoms during creep.

  Info
Periodical
Chapter
Chapter 5: Microstructure and Properties
Edited by
Hajo Dieringa, Norbert Hort and Karl Ulrich Kainer
Pages
210-213
DOI
10.4028/www.scientific.net/MSF.690.210
Citation
S. Gavras, S. M. Zhu, M. A. Easton, M. A. Gibson, J. F. Nie, "Effects of Heat Treatment on a High-Pressure Die-Cast Mg-La-Y Alloy", Materials Science Forum, Vol. 690, pp. 210-213, 2011
Online since
June 2011
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Price
$32.00
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