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Journal of Materials Science

, Volume 43, Issue 5, pp 1583–1586 | Cite as

High-pressure homogenization treatment of Al–Zn–Mg–Cu aluminum alloy

  • Li HaiEmail author
  • Cao Dahu
  • Wang Zhixiu
  • Zheng Ziqiao
Article

Absract

The microstructures and aging hardening response of Al–12Zn–3.5Mg–3.0Cu–0.14Zr aluminum alloy after a high-pressure homogenization treatment at 750 °C for 45 min under 5 GPa were investigated. The results showed that the constituent phases dissolved completely and formed α-Al single-phase solid solution comparable to that formed after ambient-pressure homogenization at 450 °C/96 h + 460 °C/128 h. The complete dissolution of the constituent phases increased the solubility of the alloying elements, as well with the over-burning temperature and aging hardness.

Keywords

Constituent Phasis Homogenization Treatment Direct Chill Direct Chill Casting Chill Casting 

Notes

Acknowledgement

This work was supported by the national basic research program of China (2005CB623705).

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Department of Materials Science and EngineeringJiangsu Polytechnic UniversityChangzhouP.R. China
  2. 2.School of Materials Science and EngineeringCentral South UniversityChangshaP.R. China

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