Influence of Heat Treatment on the Hardness of ZnAl22Cu3 Alloy

Abstract:

The effect of heat treatment on the structure and hardness of the ZnAl22Cu3 alloy is presented in the paper. ZnAl22 and ZnAl22Cu3 alloys were tested. The scope of the examination included dilatometry, structural and hardness tests. Very interesting is the effect of the transformation, occurring at lower temperatures on the structure and hardness of the alloy. There are found, that soaking at 185°C causes a decrease in the hardness of the ZnAl22Cu3 alloy. Observed ZnAl22Cu3 alloy hardness decrease is related to the disappearance of zinc-rich dendrites and the transition of zinc to a eutectoid mixture.

• Periodical: Solid State Phenomena (Volume 212)
• Pages: 35-38
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.212.35
• Online since: December 2013
• Authors: Rafał Michalik, Agnieszka Tomaszewska
• Keywords: Hardness, Structure, Zn-Al-Cu Alloys

References

[1] T. Savaskan, M. Aydm, Fatigue behaviour of monoeutectoid based Zn-Al-Cu alloys in 3. 5% NaCl and 1% HCl solutions, Materials Charaterization 52 (2004) 269-278.

DOI: 10.1016/j.matchar.2004.05.008

[2] T. Savaskan, G. Purcek, P. Hekimoglu, Effect of Cu content on the mechanical and tribological properties of ZnAl27 alloys, Tribology Letters 15 / 3 (2003) 257-263.

[3] Y. Alemdag, T. Savaskan, Mechanical and tribological properties of Al-40Zn-Cu alloys, Tribology International 42 (2009) 176-182.

DOI: 10.1016/j.triboint.2008.04.008