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2003•The Chinese Journal of Nonferrous MetalsRequires access

Influence of combined addition of Ce and Ca on ignition proof of AZ91D magnesium alloy

Hou Le-gan

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Abstract

Magnesium is easy to oxidize or even burn during melting or die-casting. Among all the ways of ignition proof of magnesium, the alloying is the most effective. The variation of burning temperature caused by the addition of Ce and Ca was discussed, the microstructure of the alloys was observed by microscope, and the structures of the surface oxide films were analysed by XRD. The results show that, the effect of the combined addition of Ce and Ca is better than that of single addition; the ignition proof temperature can rise to over 950 ℃.

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What this paper is about

Magnesium is easy to oxidize or even burn during melting or die-casting. Among all the ways of ignition proof of magnesium, the alloying is the most effective. The variation of burning temperature caused by the addition of Ce and Ca was discussed, the microstructure of the alloys was observed by microscope, and the structures of the surface oxide films were analysed by XRD. The results show that, the effect of the combined addition of Ce and Ca is better than that of single addition; the ignition proof temperature can rise to over 950 ℃.

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Available abstract

Magnesium is easy to oxidize or even burn during melting or die-casting. Among all the ways of ignition proof of magnesium, the alloying is the most effective. The variation of burning temperature caused by the addition of Ce and Ca was discussed, the microstructure of the alloys was observed by microscope, and the structures of the surface oxide films were analysed by XRD. The results show that, the effect of the combined addition of Ce and Ca is better than that of single addition; the ignition proof temperature can rise to over 950 ℃.

Key concepts: Magnesium, Materials science, Microstructure, Magnesium alloy, Ignition system, Metallurgy, Alloy, Casting

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