CORROSION BEHAVIOR OF HOT WORK STEEL CONTAININGHIGH Co IN LIQUID MAGNESIUM ALLOY AZ91D

J Chin Soc Corr Pro

2003, Vol. 23

Issue (2): 120-123 DOI:

Research Report

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CORROSION BEHAVIOR OF HOT WORK STEEL CONTAININGHIGH Co IN LIQUID MAGNESIUM ALLOY AZ91D

Shuxun Liu;Xianmin Liu;Peijie Li;Zhenning Wu

钢铁研究总院结构材料所

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Abstract Corrosion behavior of a new hot work die steel cont aining high Co in liquid magnesium alloy AZ91D was analyzed by SEM and energy sp ectrum analysis.The results show that a chemical reaction happened between the s teel and liquid magnesium alloy,a corrosion layer was formed.On the early stage of reaction,the layer was loose and was not protective.With increasing of the re action time,the layer became thick and compact,that had well protectiveness and decreased the rate of the reaction.Fe,Mn elements in the steel and Al,Mn element s in liquid magnesium alloy happened to react.The corrosion rate was controlled by the diffusion of Fe,Al and Mn elements.

Key words: high Co hot work die steel liquid Mg-base alloy liquid metal corrosion

Received: 29 October 2001

ZTFLH:

TG174.1

Corresponding Authors: Shuxun Liu

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Shuxun Liu; Xianmin Liu; Peijie Li; Zhenning Wu. CORROSION BEHAVIOR OF HOT WORK STEEL CONTAININGHIGH Co IN LIQUID MAGNESIUM ALLOY AZ91D. J Chin Soc Corr Pro, 2003, 23(2): 120-123 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2003/V23/I2/120

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