Thermal stability of multi-spray deposition heat resistant Al-Fe-V-Si alloy

被引：0
|
作者：
Lu, B [1 ]
Yi, DQ [1 ]
Li, WX [1 ]
Yu, ZM [1 ]
Zhou, L [1 ]
机构：
[1] Cent S Univ, Dept Mat Sci & Engn, Changsha 410083, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2002年 / 12卷 / 02期
关键词：
heat resistant Al alloys; heat exposure; microstructure; metastable phase; mechanical property;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
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 diffraction (XRD). The results show that after heat exposure (HE) at 753 K for 500 h the tensile strength and hardness of Al-Fe-V-Si alloy at 623 K maintains the same values as those at room-temperature. HE dose not obviously affect the thermal stabilities of Al(12)(Fe, V)(3)Si phase but the lattice constant of Al(12)(Fe, V)(3) Si phase decrease.
引用
收藏
页码：273 / 276
页数：4
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