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Y/Zn摩尔比对Mg-Zn-Zr-Y合金相组成的影响(英文)
引用本文:罗素琴,汤爱涛,潘复生,宋锴,王维青.Y/Zn摩尔比对Mg-Zn-Zr-Y合金相组成的影响(英文)[J].中国有色金属学会会刊,2011,21(4):795-800.
作者姓名:罗素琴  汤爱涛  潘复生  宋锴  王维青
作者单位:罗素琴,宋锴,王维青,LUO Su-qin,SONG Kai,WANG Wei-qing(重庆大学材料科学与工程学院,重庆,400030);汤爱涛,潘复生,TANG Ai-tao,PAN Fu-sheng(重庆大学材料科学与工程学院,重庆400030;重庆大学国家镁合金工程技术研究中心,重庆400030)
基金项目:Project(50725413)supported by the National Natural Science Foundation of China
摘    要:采用XRD和SEM/EDS等分析方法研究铸态和退火态富镁Mg-Zn-Zr-Y合金中相组成随着Y/Zn摩尔比的变化而演变的规律,并从相图计算的角度解释这种演变规律。结果表明:Mg-Zn-Zr-Y合金中第二相的形成严格依赖于Y/Zn摩尔比,X相(Mg12YZn)、W相(Mg3Y2Zn3)和I相(Mg3YZn6)随着Y/Zn摩尔比的降低依次析出。与相组成对应的摩尔比或摩尔比范围定量描述如下:当Y/Zn摩尔比约为0.164时,相组成为α-Mg+I;当Y/Zn摩尔比为0.164~0.33时,相组成为α-Mg+I+W;当Y/Zn摩尔比约为0.33时,相组成为α-Mg+W;当Y/Zn摩尔比为0.33~1.32时,相组成为α-Mg+W+X;当Y/Zn摩尔比约为1.32时,相组成为α-Mg+X。该研究为Mg-Zn-Zr-Y合金设计和合金选用提供了指导。

关 键 词:镁合金  Mg–Zn–Zr–Y  摩尔比  相组成

Effect of mole ratio of Y to Zn on phase constituent of Mg-Zn-Zr-Y alloys
LUO Su-qin,TANG Ai-tao,PAN Fu-sheng,SONG Kai,WANG Wei-qing.Effect of mole ratio of Y to Zn on phase constituent of Mg-Zn-Zr-Y alloys[J].Transactions of Nonferrous Metals Society of China,2011,21(4):795-800.
Authors:LUO Su-qin  TANG Ai-tao  PAN Fu-sheng  SONG Kai  WANG Wei-qing
Affiliation:LUO Su-qin 1,TANG Ai-tao 1,2,PAN Fu-sheng 1,SONG Kai 1,WANG Wei-qing 1 1. College of Materials Science and Engineering,Chongqing University,Chongqing 400030,China,2. National Engineering Research Center for Magnesium Alloys
Abstract:The phase constituent evolution of Mg-Zn-Y-Zr alloys with the mole ratio of Y to Zn both in the as-cast and as-annealed states at the Mg-rich corner was investigated by XRD and SEM/EDS analysis and was further explained from the ternary phase diagram calculation. The results show that the formation of the secondary phases in Mg-Zn-Y-Zr alloys firmly depends on the mole ratio of Y to Zn, and X (Mg 12 YZn)-phase, W (Mg 3 Y 2 Zn 3 )-phase and I (Mg 3 YZn 6 )-phase come out in sequence as the ratio of Y to Zn d...
Keywords:Mg-Zn-Zr-Y
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