您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 13    No. 2    April 2003

[PDF Download]    [Flash Online]

    

Structure of melt-spun Al-2.5Ti-2.5Fe-2.5V alloy and structural changes during annealing
CHEN Yi-qing(陈翌庆)1, CAO Qing-ping(曹庆平)1
SU Yong(苏 勇)1, ZHANG Shu-yuan(张庶元)2

1. School of Materials Science & Engineering, 
Hefei University of Technology, Hefei 230009, China;
2. Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China

Abstract:Rapidly solidified Al-2.5Ti-2.5Fe-2.5V alloy was prepared by melt spinning. As-spun and as-annealed microstructures were studied by TEM, HREM, XRD and EDS analysis. The microhardness of the alloy at different annealing temperature was measured. The results show that the as-spun microstructure of the alloy includes four kinds of primary phases: Al11(V,Ti), AlTi3, Al80(V,Ti)20 and Al82(Fe,Ti,V)18 phase. After annealing at 300℃ for 10h, metastable phase Al82(Fe,Ti,V)18 transforms to the stable phase Al13Fe4. After annealing at 400℃ for 10h, the primary phases Al11(V,Ti) and AlTi3 has completely transformed to Al80(V,Ti)20 and Al23Ti9 phase, respectively. The addition of element V increases the microhardness of melt-spun Al-2.5Ti-2.5Fe alloy at elevated temperatures.

 

Key words: melt spinning; Al-Ti-Fe-V alloy; microstructure; structural change

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn