Paper Title:
Heat Resistance of Mg-Nd Based Casting Alloys Containing Gadolinium and Yttrium
  Abstract

Influences of Gd or Y addition on microstructures and tensile properties at room and elevated temperatures were investigated for T6-treated Mg-3%Nd-0.5%Zn-0.4%Zr casting alloys, on the basis of experimental results from X-ray diffractometry, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, tensile and creep tests. Microstructures of the T6-treated alloys are characterized by recrystallized α-(Mg) grains containing various nano-sized precipitates such as Mg41Nd5, Zn2Zr3 and Zr particles. In T6 condition, most of added Gd and Y elements are dissolved in Mg41Nd5 precipitates rather than formation of new phases. Tensile properties and creep resistance of the Mg-3%Nd-0.5%Zn-0.4%Zr alloy are remarkably increased by the addition of Gd or Y, but their efficiencies are substantially the same.

  Info
Periodical
Advanced Materials Research (Volumes 26-28)
Edited by
Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages
137-140
DOI
10.4028/www.scientific.net/AMR.26-28.137
Citation
J. H. Jun, B. K. Park, J. M. Kim, K. T. Kim, "Heat Resistance of Mg-Nd Based Casting Alloys Containing Gadolinium and Yttrium", Advanced Materials Research, Vols. 26-28, pp. 137-140, 2007
Online since
October 2007
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Price
$32.00
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