Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面

中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 22    No. 4    April 2012

[PDF Download]    [Flash Online]    

    

TEM microstructure of rapidly solidified Mg−6Zn−1Y−1Ce alloy
YANG Wen-peng1,2, GUO Xue-feng1, LU Zheng-xin2

1. School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China;
2. School of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048, China

Abstract:Rapidly solidified (RS) Mg−6Zn−1Y−1Ce ribbons were prepared by single roller melt-spinning technique. Transmission electron microscopy and energy dispersive X-ray spectroscopy were employed to characterize the microstructure of RS ribbons. The results show that there is high density of particles distributed within grains and at grain boundaries in the region near wheel side. The particle density is decreased in the middle region and free surface region. The alloy is predominantly composed of supersaturated a-Mg solid solution, T phase and W phase; meanwhile, a few icosahedral quasicrystalline and Mg4Zn7 particles are also observed. The T phase is confirmed having a body-centered orthorhombic structure that is transformed from the body-centered tetragonal structure Mg12Ce phase due to the partial substitution of Mg atoms by Zn.

 

Key words: Mg−6Zn−1Y−1Ce alloy; rapid solidification; T phase; icosahedral quasicrystalline; Mg4Zn7 phase; W phase

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱:f_ysxb@163.com