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. 12    No. 2    April 2002

[PDF Download]    [Flash Online]

    

Thermal stability of multi-spray
 deposition heat resistant
Al-Fe-V-Si alloy
LU Bin(卢  斌), YI Dan-qing(易丹青), LI Wen-xian(黎文献),
YU Zhi-ming(余志明), ZHOU Lin(周  琳)

Department of Materials Science and Engineering,
Central South University, Changsha 410083, China

Abstract:Rapidly solidified Al-8.4Fe-1.3V-1.7Si heat resistant alloy was made by using multi-layer spray deposition technique. Its thermal stability of mechanical properties was investigated by the means of tensile and hardness tests, thermal stability of microstructure by transmission electron microscopy (TEM), X-ray dif fraction (XRD). The results show that after heat exposure (HE) at 753K for 500h the tensile strength and hardness of Al-Fe-V-Si alloy at 623K maintains the same values as those at room-temperature. HE dose not obviously affect the thermal stabilities of Al12(Fe,V)3Si phase but the lattice constant of Al12(Fe,V)3Si phase decrease.

 

Key words: heat resistant Al alloys; heat exposure; microstructure; metastable phase; mechanical property

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