Effect of Pre-Treatment on the Precipitation Hardening of a Novel Al-Mg-Si Alloy

Li Wei Quan; Rui Wu; Da Ran Fang; Yuan Yuan Liu; Chuan Cai Wang

doi:10.4028/www.scientific.net/AMR.881-883.1374

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 881-883Effect of Pre-Treatment on the Precipitation...

Effect of Pre-Treatment on the Precipitation Hardening of a Novel Al-Mg-Si Alloy

Abstract:

Al-Mg-Si alloy is used to investigate the bake-hardening response as automotive body panels. Natural aging followed by artificial aging at 170°C was carried on to study the effect of delaying at room temperature. Two methods are carried on to investigate the effect of pre-treatment on hardening response of Al-Mg-Si alloy. One is pre-aging in the range 80-140°Cfollowed by artificial aging at 170°C after natural aging for the same periods, and the other is retrogression treatment followed by artificial aging at 170°C after natural aging for the same periods. The properties of the alloy are tested by Vickers hardness measurements. And it is found that the optimal pre-ageing is 170°C for 30min and the opimal retrogression treatment is 230°C for 15s.

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Periodical:

Advanced Materials Research (Volumes 881-883)

Pages:

1374-1377

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.881-883.1374

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Online since:

January 2014

Authors:

Li Wei Quan*, Rui Wu, Da Ran Fang, Yuan Yuan Liu, Chuan Cai Wang

Keywords:

Al-Mg-Si Alloy, Natural Age, Pre-Age, Retrogression Treatment

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