Microstructure and Creep Property of As-Cast Mg-6Al-XSr(x=0, 2, 3) Alloys

Abstract:

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The microstructure and creep property of as-cast Mg-6Al-xSr(x=0, 2,3) alloys were studied. Results showed that the branch-like Al4Sr phase is the main precipitating phase in these alloys containing Sr. Their secondary creep rates under the applied stress of 70MPa at 175°Cdecreased with the increasing in the content of Sr and reached the minimum value of 1.4×10-8s-1 in the Mg-6Al-3Sr alloy, which is one thirtieth of secondary creep rates of the Mg-6Al alloy. It was mainly attributed to Al4Sr, which effectively hindered the grain boundaries sliding and dislocation motion in the creep.

Info:

Periodical:

Advanced Materials Research (Volumes 284-286)

Main Theme:

Edited by:

Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu

Pages:

1564-1567

DOI:

10.4028/www.scientific.net/AMR.284-286.1564

Citation:

Y. F. Wu et al., "Microstructure and Creep Property of As-Cast Mg-6Al-XSr(x=0, 2, 3) Alloys", Advanced Materials Research, Vols. 284-286, pp. 1564-1567, 2011

Online since:

July 2011

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$35.00

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