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. 17    No. 5    October 2007

[PDF Download]    

    

Deformation twins and twinning at ambient temperature in cryomilled Al-Zn-Mg-Cu alloy powders
CHEN Han-bin(陈汉宾)1, CHENG Jun-sheng(程军胜)2, YANG Bin(杨 滨)1, 3, ZHANG Ji-shan(张济山)1, TIAN Xiao-feng(田晓风)4, FAN Jian-zhong(樊建中)4

1. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China; 2. Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100080, China;3. International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China; 4. Beijing General Research Institute for Nonferrous Metals, Beijing 100088, China

Abstract:The nanocrystalline Al-Zn-Mg-Cu alloy powders were synthesized using cryomilling. Deformation twins and twinning at ambient temperature were observed in Al-Zn-Mg-Cu powders. Experimental results indicate that high strain rate at low temperature during cryomilling induces the formation of deformation twins by the climbing of the restricted dislocations in nano-scale grains, and the cryomilled powders at high energies and nonequilibrium state reduce the grain boundary energies by twinning.

 

Key words: cryomilling; Al-Zn-Mg-Cu alloy; twins; mechanism

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@mail.csu.edu.cn