Comparing Age Hardening Behaviors of Al-3Cu and Al-8Si-3Cu Alloys

Abstract:

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The aging hardening behaviors of Al-8Si-3%Cu (wt%) and Al-3Cu (wt%) alloys have been investigated. Samples were solution treated at 500 for 24 h followed by water quenching before aging. Hardness has been measured for quenched samples aging at 150°C. Strong age hardening occurs for Al-3Cu alloy and hardness increases by about 60% after peak aging. There is a hardness decrease in the early aging stage of Al-8Si-3Cu alloy and hardness increases by about 15% after peak aging. The age precipitation behaviors have been analyzed using DSC and TEM. Effects of microstructure characteristics on age precipitation and age hardening response of Al-8Si-3Cu alloy have been discussed.

Info:

Periodical:

Advanced Materials Research (Volumes 146-147)

Edited by:

Sihai Jiao, Zhengyi Jiang and Jinglong Bu

Pages:

1667-1670

DOI:

10.4028/www.scientific.net/AMR.146-147.1667

Citation:

G. Q. Wang et al., "Comparing Age Hardening Behaviors of Al-3Cu and Al-8Si-3Cu Alloys", Advanced Materials Research, Vols. 146-147, pp. 1667-1670, 2011

Online since:

October 2010

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Price:

$35.00

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