Effect of annealing process on microstructure and mechanical properties of 3003 aluminum alloy plate

doi:10.13251/j.issn.0254-6051.2021.09.015

Abstract

Abstract: Effect of annealing process on microstructure and mechanical properties of the 3003 aluminum alloy plate was studied. The results show that the annealed second phase particles is mainly composed of Al₆(Mn, Fe), Al₆Mn and α-Al(Fe, Mn)Si phases formed at defects such as dislocations or subgrain boundaries. With the annealing temperature and holding time increasing, the second phase particles coarsen and grow, and a small number of dispersed second phases appear. When the annealing temperature is 450 ℃, the precipitated phase starts to re-dissolve into the matrix. With the annealing temperature increasing, the hardness is stabilized at about 31.0 HV0.5, and the tensile strength tends to decrease as a whole, while the elongation increases.

Key words: 3003 aluminum alloy plate, annealing process, microstructure, mechanical properties

CLC Number:

TG146.2

Li Xiao, Cheng Xiaonong, Xu Guifang, Yang Chengkang, Chen Leli. Effect of annealing process on microstructure and mechanical properties of 3003 aluminum alloy plate[J]. Heat Treatment of Metals, 2021, 46(9): 90-94.

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