Research on the Strength Improvement of 7A04 Aluminum Alloy

Chao Jue Yi; Peng Cheng Zhai; Li Zhou Dong; Qi Hao Fu

doi:10.4028/www.scientific.net/AMR.488-489.19

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 488-489Research on the Strength Improvement of 7A04...

Research on the Strength Improvement of 7A04 Aluminum Alloy

Abstract:

By using cryogenic treatment on 7A04 aluminum alloy tested with micrographic analysis and mechanical properties test, we studied the impact on mechanical properties of 7A04 aluminum alloy The results showed that the strength of 7A04 aluminum alloy could be highly increased and the grain size would be reduced in the process through being treated in 480°C/80min + aging in 120°C/4h + cryogenic treatment + aging at 120°C/16h.7A04 aluminum alloy are more fully recrystallized to grain refinement and the tensile strength of it can be increased to 720Mpa after the treatment.

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Periodical:

Advanced Materials Research (Volumes 488-489)

Pages:

19-21

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.488-489.19

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Online since:

March 2012

Authors:

Chao Jue Yi, Peng Cheng Zhai, Li Zhou Dong, Qi Hao Fu

Keywords:

7A04 Aluminium Alloy, Artificial Aging, Cryogenic Treatment, Strength

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