Study of Mechanical Properties of Heat Resistant Aluminum Alloy for Transmission Equipment Under Different Casting Technology
Author of the article:SHI Lei;ZHENG Chengbo;YIN Hongquan;LIANG Fengmin;DONG Bo
Author's Workplace：North China Electric Power University,Tangshan 063000,China;Hebei Steel Group Tangshan Iron and Steel Co., Ltd., Tangshan 063000,China
Key Words：heat aluminum alloy squeeze casting gravity casting high temperature mechanical properties power transmission equipment
Abstract：
High temperature mechanical properties of heat resistant aluminum alloy used in transmission equipment in squeezing and gravity casting were compared by tensile testing machine, optical microscope and scanning electron microscope. It is shown that the gravity casting alloy, holes and acicular phase in Al7CuFe alloy in squeezing casting has been reduced, blocky Al9FeNi phase became fine and dispersion;squeeze casting alloy after heat treatment at 300 DEG C,its tensile strength, yield strength and elongation compared to gravity casting alloy were improved.
