Effect of Solid-Solution Process on the Properties of 7050 Aluminum Alloy

Abstract:

This paper is dedicated to studying the effect of solid-solution process on the properties of 7050 aluminum alloy. First, the 7050 aluminum alloy samples were treated under different solid-solution processing conditions (460 ° C × 90 min, 470 ° C × 90 min, 460 ° C × 90 min + 470 ° C × 30 min and 460 ° C × 90 min + 470 ° C × 60 min). Then, the properties of different samples were tested. In this step, the metallographic structure of the samples were observed by an optical microscope, the hardness were measured by a Vickers hardness tester, the wear resistance were measured by a friction and wear tester, and the corrosion resistance was tested by an electrochemical workstation. Finally, experimental results confirm that 7050 aluminum alloy has the best wear resistance and corrosion resistance, in solid-solution processing conditions of 460 ° C × 90 min + 470 ° C × 60 min.

• Periodical: Key Engineering Materials (Volume 866)
• Pages: 63-71
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.866.63
• Online since: October 2020
• Authors: Wei Wei Song*, Jia Fei Pu, Hong Feng Wang, Di Jiang, Lei Bao, Wen Da Chen
• Keywords: 7050 Aluminum Alloy, Abrasive Resistance, Corrosion Resistance, Metallographic Structure, Microhardness, Solid-Solution Treatment

References

[1] Z. K. Zhao, F. Z. Ding, H. L. Qian. Metal materials and heat treatment technology[M], Beijing: National Defense Industry Press,(2011).

[2] J. A. Liu. Key technology of aluminum production[M], Chongqing: Chongqing University press, (1997).

[3] F. S. Pan, D. F. Zhang. Aluminum alloy and its application[M], Beijing: Chemical Industry Press, (2006).

[4] J. D. Liu. Study on Microstructure and properties of soft contact electromagnetic continuous casting 7050 aluminum alloy[D], Dalian: Dalian University of Technology, (2009).

[5] L. Gu. Several common problems in metallographic examination of hard aluminum alloy[J]. Journal of Gansu Normal Colleges, 2005,10(2): 29-30.

[6] J. F. Li, Z. J. Zheng. The role of second phase in localized corrosion of aluminum alloys[J]. Materials Review, 2005, 19(2): 81-83.

[7] C. Y. Liu, D. C. Zhou, C. A. Li, J. M. Li. Effect of heat treatment process on Microstructure and properties of 2A14 forgings[J]. Material & Heat Treatment, 2009, 38(24): 148-150.

[8] X. Yang. Study on ultimate heat treatment of Al-65Zn-2.4Mg-2.3Cu ultra high strength aluminum alloy thick plate[D]. Liaoning: Northeastern University, (2009).

[9] Z. T. Wang, R. Z. Tian. Aluminum alloy and its processing manuals[M], Changsha: Central South University Press, (2000).

[10] S. Z. Song. Corrosion electrochemical methods[M], Beijing: Chemical Industry Press,(1998).

[11] H. W. Liu, K. H. Chen, Y. Z. Liu. Effect of strengthening solution on Microstructure and properties of 7050 aluminum alloy[J]. Metal Heat Treatment, 2000, 27(9): 16-17.

[12] S. L. Zhang, S. Z. Ren. Concise Application Manual for aluminum alloy[M]. Shanghai: Shanghai Scientific and Technical Literature Publishing House, (2006).

[13] S. S. Xie, J.A. Liu, G. J. Huang. 500 questions on aluminum processing technology[M], Beijing: Chemical Industry Press,(2006).

[14] J. A. Liu, S. S. Xie. Application and technology development of aluminum alloy materials[M], Beijing: Metallurgical Industry Press, (2004).

[15] Y. M. Wang. Metallographic and electron microscopic observation of microstructure of wrought aluminum alloy[C]. Industrial Aluminum Profile Technology Collection, 2006, 34-52.