Microstructure and mechanical properties of spray-formed AZ91 alloy

Acta Metall Sin

2007, Vol. 42

Issue (1): 23-26 DOI:

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Microstructure and mechanical properties of spray-formed AZ91 alloy

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中国科学院金属研究所

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;. Microstructure and mechanical properties of spray-formed AZ91 alloy. Acta Metall Sin, 2007, 42(1): 23-26 .

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Abstract AZ91 alloy has been successfully prepared by spray forming. The effect of the thermo-mechanical treatments on the microstructure and mechanical properties of the alloy was studied and the strengthening mechanism was analyzed. The results show that the spray-formed AZ91 alloy has, compared with the as-cast ingot, a finer microstructure with less intermetallic phase Mg17Al12 dispersed in the matrix, and, therefore, shows excellent workability. It can be hot-rolled with nearly 20% reduction for one pass. The spray-formed alloy exhibits outstanding mechanical properties after proper thermo-mechanical treatments.

Key words: Magnesium alloy Spray forming Hot rolling

Received: 28 February 2006

ZTFLH:

TG132.11

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