Effect of Cooling Conditions on Grain Size of AZ91 Alloy

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J Mater Sci Technol ›› 2007, Vol. 23 ›› Issue (05): 645-649.

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Effect of Cooling Conditions on Grain Size of AZ91 Alloy

Zhiliang NING, P.CAO, H.WANG, Jianfei SUN, Diankun LIU

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China...

Received:2006-10-17 Revised:2006-12-31 Online:2007-09-28 Published:2009-10-10
Contact: Zhiliang NING

Abstract

Abstract: The grain size of AZ91 alloy was investigated in terms of the effects of cooling rate, superheat and steel gauze. It was found that rapid cooling rate and low superheat favoured the achievement of fine grain structures. The gauze had a less profound effect on the grain size in AZ91 magnesium alloy than that in A356 aluminum alloy. The mechanisms by which these factors affect grain refinement of AZ91 have also been discussed.

Key words: Superheat, Cooling Rate, Stainless Steel gauze, Grain Size

Zhiliang NING, P.CAO, H.WANG, Jianfei SUN, Diankun LIU. Effect of Cooling Conditions on Grain Size of AZ91 Alloy[J]. J Mater Sci Technol, 2007, 23(05): 645-649.

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Effect of Cooling Conditions on Grain Size of AZ91 Alloy

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