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Comparative Study on Compression Deformation Behaviors of Cast and Extruded AZ31 Alloys

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Abstract:

Compression properties, microstructure evolution and deformation behaviors of cast and extruded AZ31 alloys are investigated. The results show that compressive yield stress, ultimate strength and ultimate compression ratio between extruded and cast AZ31 alloy are quite different. The yielding pattern of as-cast AZ31 alloy is continuous, and the yield pattern of extruded AZ31 alloy demonstrate an obvious yielding plateau mode. The angle between the fractures and specimens axis of as-cast and extruded AZ31 alloy is about 45°. A mass of reliefs and damage can be found on the specimen surface of as-cast AZ31 alloy and the twinning is main deformation sign in as-cast AZ31 alloy as seen a rough surface. The slip activity might be a predominant deformation mechanism in extruded AZ31 alloy judged by smooth surface after fracture.

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Periodical:

Advanced Materials Research (Volumes 652-654)

Pages:

1932-1936

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.652-654.1932

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Online since:

January 2013

Authors:

Jia Tong Song, Gao Feng Quan, Zhao Ming Liu, Ying Bo Zhang, Jia Le Sun

Keywords:

Twinning, AZ31 Alloy, Compression, Crack, Deformation

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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