Paper Title:
Effect of Sc Addition on Aging Behavior of Mg-Gd Alloys
  Abstract

The effects of addition of Sc on the aging behavior of Mg–Gd alloy was examined by means of Vickers microhardness measurements, transmission electron microscopy (TEM), and high-resolution TEM. The maximum hardness of the specimens increased with increasing Sc content. In the early stages of aging, contrasts of precipitates that were similar to the β'' phase (D019-type structure) in binary Mg–Gd alloy were observed in the Mg–Gd–Sc alloys, whereas specimen that had started to harden again, but had not attained maximum hardness, showed predominant contrasts for precipitates that were similar to the β' phase (base-centered orthorhombic structure) in binary Mg–Gd alloy. Contrasts for precipitates with a D019-type ordered structure appeared during prolonged aging in specimen with high contents of Sc. Therefore, the addition of Sc to Mg–Gd alloys tends to slow down the transformation from the '' phase to the ' phase.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
631-634
DOI
10.4028/www.scientific.net/MSF.654-656.631
Citation
T. Kawabata, K. Matsuda, S. Ikeno, "Effect of Sc Addition on Aging Behavior of Mg-Gd Alloys", Materials Science Forum, Vols. 654-656, pp. 631-634, 2010
Online since
June 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: M. Kolář, Vladivoj Očenášek, J. Uhlíř, Ivana Stulíková, Bohumil Smola, Martin Vlach, V. Neubert, K. Šperlink
Abstract:The influence of plastic deformation and heat-treatment on the precipitation of Al3(Sc, Zr) particles and the effect of these precipitates...
357
Authors: Bao Hong Zhu, Bai Qing Xiong, Yon Gan Zhang, Udo Fritsching, Ji Shan Zhang, Feng Wang, Zhi Hui Li, Hong Wei Liu
Abstract:A high Zn content Al-Zn-Mg-Cu alloy was prepared by spray forming process and the precipitate behavior and microstructure of the extruded...
481
Authors: Su Qiu Jia, Guo Jun Liu, Qi Shuang Chen
Abstract:Mg-7.3Al magnesium alloys were investigated in the paper. The paper presents microstructural characterization of Mg-7.3Al alloy after casting...
585
Authors: Xiao Ping Luo, Lan Ting Xia, Ming Gang Zhang
Abstract:The effect of Cd and Sb addition on the microstructural and mechanical properties of as-cast AZ31 alloys was investigated and compared. The...
197
Authors: Hong Wei Liu, Yon Gan Zhang, Jian Bo Zhang, Bao Hong Zhu, Feng Wang, Zhi Hui Li, Xi Wu Li, Bai Qing Xiong
Chapter 1: Materials Properties
Abstract:Microstructural characterization of Al-Cu-Mg-Ag alloy ageing at low and elevated temperature were investigated by differential scanning...
1225