Die-Casting Capabilities of Heat Resistant Mg-Al-Ca Alloys

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Various amounts of Ca were added to AZ91D magnesium alloy, and their effects on the die-casting abilities were investigated. It was observed that fluidity as die filling ability tends to decrease by Ca additions except for about 2%Ca. This reduction of fluidity by Ca was more significant at high superheats probably due to the high affinity between Ca and oxygen. Contrary to expectation, hot cracking resistance was found to increase by Ca additions. High Ca alloys showed some die-sticking tendency. However, the tendency was not observed below 2%Ca.

Info:

Periodical:

Materials Science Forum (Volumes 486-487)

Edited by:

Hyung Sun Kim, Sang-Yeop Park, Bo Young Hur and Soo Wohn Lee

Pages:

424-427

Citation:

J. M. Kim et al., "Die-Casting Capabilities of Heat Resistant Mg-Al-Ca Alloys", Materials Science Forum, Vols. 486-487, pp. 424-427, 2005

Online since:

June 2005

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$38.00

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[10] [20] [30] [40] [50] [60] [70] [80] [90] Base 0. 5Ca 1Ca 2Ca 3Ca Total Crack Length (mm).

500 1000 1500 2000 2500 3000 3500 Base 0. 5Ca 1Ca 2Ca 3Ca Ejection Force (N).

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