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

页码：273 / 276

页数：4

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