Paper Title:
Effect of Quenching on Aging Behavior of Binary Mg-Zn Alloys
  Abstract

The effects of the Zn content on the aging behavior of Mg–Zn alloys was examined by means of Vickers microhardness measurements and high-resolution transmission electron microscopy (HRTEM). The hardness of Mg–Zn alloys with high Zn concentrations increased markedly on aging at 473 K. A higher maximum hardness was obtained at an earlier aging time for alloys with high Zn concentrations. The aging response of Mg–4.7mass%Zn alloy aged at 473 K and quenched in chilled water differed from that of a specimen both aged and quenched at 473 K up to the maximum hardness. HRTEM images of the monolayers on the { }Mg planes were recorded for specimens quenched in chilled water; ' and ' phases were found to exist in the maximally aged specimen. Compared with the specimen quenched in water, the number of ' phases was lower in the specimen that was both aged and quenching at 473 K. It was suggested that the difference in the aging response is related to the formation of monolayers in the early stage of aging.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
659-662
DOI
10.4028/www.scientific.net/MSF.654-656.659
Citation
R. Nakanishi, T. Kawabata, K. Matsuda, S. Ikeno, "Effect of Quenching on Aging Behavior of Binary Mg-Zn Alloys", Materials Science Forum, Vols. 654-656, pp. 659-662, 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: J.K. Kim, Dong-Seok Chung, H.S. Park, Manabu Enoki
Abstract:The effect of beryllium (Be) on the precipitation behaviors and mechanical properties of Al–Cu–Li–Mg–Zr–(Ag) alloys was investigated. The...
381
Authors: Z. Horita
Abstract:The process of severe plastic deformation (SPD) makes it possible to reduce the grain size to the submicrometer or nanometer range in many...
1485
Authors: Chihiro Watanabe, Fumiya Nishijima, Ryoichi Monzen, Kazue Tazaki
Abstract:The effects of P and Cr addition and two-step aging on the microstructure and mechanical properties of a Cu-4wt%Ni-0.95wt%Si alloy have been...
2321
Authors: Tatsuaki Sakamoto, Yuri Hiagaki, Sengo Kobayashi, Kiyomichi Nakai
Abstract:Precipitation behavior of a metastable β Ti alloy, Ti-6.8Mo-4.5Fe-1.5Al(masss%), during two-step aging has been investigated. Supersaturated...
461
Authors: Cheng Dong Xia, Ming Pu Wang, Gen Ying Xu, Wan Zhang, Yan Lin Jia, Hong Chun Yu
Abstract:The microstructure and properties of Cu-0.4wt%Cr alloys prepared by a shortened process and a conventional process were investigated by means...
1890