2010•Rejiagong gongyiRequires access

Research on Characteristics of Cooling and Solidification of AZ91D Mg-alloy

Lu Dong

Abstract

The characteristics of cooling and solidification of AZ91D magnesium alloy were studied by using DSC.The results indicate that AZ91D magnesium alloy liquidus temperature is about 595℃ and solidus temperature is about 470℃,so the difference between solid and liquid temperature is 125℃,which implies that AZ91D magnesium alloy belongs to a type of wide crystallization temperature range and low-melting-point alloy.The average free line contraction rate of AZ91D magnesium alloy is 1.572%,its solidification mode is inclined to be paste-solidification,which is prone to form coarse divorced eutectic structure in the casting.

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Key concepts: Solidus, Liquidus, Materials science, Eutectic system, Alloy, Magnesium alloy, Metallurgy, Melting point