Effect of Heat Treatment on the In-Plane Anisotropy of As-Rolled 7050 Aluminum AlloyReport as inadecuate




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1

Department of Chemistry and Materials, Naval University of Engineering, Wuhan 430033, China

2

State Key Laboratory of Materials Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China





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Academic Editor: Nong Gao

Abstract Tensile tests were conducted on both as-quenched and over-aged 7050 aluminum alloy to investigate the effect of heat treatment on the in-plane anisotropy of as-rolled 7050 aluminum alloy. The results showed that the tensile direction has limited effect on mechanical properties of the as-quenched 7050 aluminum alloy. The in-plane anisotropy factors IPA factor of tensile strength, yield strength, and elongation in as-rolled 7050 aluminum alloy fluctuate in the vicinity of 5%. The anisotropy of the as-quenched 7050 aluminum alloy is mainly affected by the texture according to single crystal analysis based on the Schmid factor method. Besides, the IPA factor of the elongation in the over-aged 7050 aluminum alloy reaches 11.6%, illustrating that the anisotropy of the over-aged 7050 aluminum alloy is more prominent than that of the as-quenched. The occurrence of the anisotropy in the over-aged 7050 aluminum alloy is mainly attributed to the microstructures. which are characterized by visible precipitate free zones PFZs and coarse precipitates in subgrain boundaries. View Full-Text

Keywords: aluminum alloy; heat treatment; anisotropy; microstructure; texture aluminum alloy; heat treatment; anisotropy; microstructure; texture





Author: Huie Hu 1 and Xinyun Wang 2,*

Source: http://mdpi.com/



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