Paper Title:
Effect of Al18B4O33 Whisker Surface Treatment on Aging Behavior of Al18B4O33 Whisker/ ZK60 Magnesium Alloy Composites
  Abstract

MgAl2O4 layer with several decade nano-meter in thickness was coated uniformly on Al18B4O33 whisker by vapor-deposition of pure magnesium in vacuum and then heat-treated in atmosphere in order to prevent to the direct reaction between Al18B4O33 whisker and molten ZK60 (Mg-(4.8-6.2)%Zn-(0.45-0.8)%Zr) alloy in preparing the composites. By the coating, the composite have no interfacial reaction in whisker and matrix. As the consumption of Zn at the interface was not observed during preparation of the composites, the composites have good aging behavior, but showed the shortening of the time to reach the peak hardness. As the cooling speed of the composite after solution treatment is slow because of low thermal conductivity of the composites, some precipitation (MgZn2) was observed in the composites. Furthermore, the precipitation grew around the interface between whisker and matrix preferentially because of thermal stress around the interface. It seems these phenomena affect to the shortening of the time to reach the peak hardness.

  Info
Periodical
Key Engineering Materials (Volumes 326-328)
Edited by
Soon-Bok Lee and Yun-Jae Kim
Pages
1673-1676
DOI
10.4028/www.scientific.net/KEM.326-328.1673
Citation
W.G. Wang, Y. Hasegawa, Y. B. Choi, N. Fuyama, K. Matsugi, O. Yanagisawa, G. Sasaki, "Effect of Al18B4O33 Whisker Surface Treatment on Aging Behavior of Al18B4O33 Whisker/ ZK60 Magnesium Alloy Composites", Key Engineering Materials, Vols. 326-328, pp. 1673-1676, 2006
Online since
December 2006
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: Yong Xue, Zhi Min Zhang, Li Hui Lang, Li Li
Abstract:In the present paper a research has been made on the effect of aging on the microstructure and mechanical properties of AZ80 and ZK60 wrought...
560
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: Hsi Hsin Chien, Kung Jeng Ma, Chien Hung Kuo
Chapter 3: Mechanical Engineering and Manufacturing
Abstract:Glass molding process provides a great potential for the production of precise glass optical components at low cost. The platinum-iridium...
533
Authors: Jung Hwa Seo, Dong Geun Lee, Cheng Lin Li, Xu Jun Mi, Yong Tae Lee
Chapter 1: Advanced Materials and Technology on Metallurgy
Abstract:Microstructure characterization and hardening behavior of a new designed Ti-12.1Mo-1Fe alloy during solution and aging treatment was...
37