Cause analysis on low plasticity of annealed 2A12 aluminum alloy

doi:10.13251/j.issn.0254-6051.2022.01.049

Abstract

Abstract: In order to find the cause for low plasticity after annealing, the chemical composition, hardness, microstructure and fracture morphology of 2A12 aluminum alloy tensile specimens were detected and analyzed by spectrometer, hardness tester, metallographic microscope and SEM. The results show that the hot extruded bar has anisotropy and a great difference in plasticity between longitudinal and transverse directions. The root cause of low plasticity after annealing is to use transverse tensile specimen instead of longitudinal one.

Key words: annealed plasticity, sampling direction, 2A12 aluminum alloy, anisotropy

CLC Number:

TG157

Li Yahong, Qi Xiaowei, Wang Xipeng, He Fang. Cause analysis on low plasticity of annealed 2A12 aluminum alloy[J]. Heat Treatment of Metals, 2022, 47(1): 290-294.

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