Thermal stability of multi-spray deposition heat resistant Al-Fe-V-Si alloy
来源期刊：中国有色金属学报(英文版)2002年第2期
论文作者：卢斌 易丹青 黎文献 余志明 周琳
文章页码：273 - 276
Key words：heat resistant Al alloys; heat exposure; microstructure; metastable phase; mechanical property
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.
