Strength evolution law of electric heat treated commercially pure Al wire

doi:10.13251/j.issn.0254-6051.2023.05.008

Abstract

Abstract: Traditionally annealing and electric heat treatment of commercially pure Al wire were carried out by using drying oven and current-providing device, respectively. The influence law and mechanism of traditionally annealing and electrical heat treatment at different temperatures on strength and microstructure of the commercially pure Al wire were investigated. The results show that when the heat treatment temperature is the same, the tensile strength and the grain size of the electric heated commercially pure Al wire is respectively lower and larger than those of the traditionally annealed, the main mechanism of which is the overheating caused by local Joule heating effect on grain boundaries in the commercially pure Al wire.

Key words: commercially pure Al wire, electric heat treatment, annealing, strength, grain size

CLC Number:

TG166.3

Zhang Yi, Hou Jiapeng, Yuan Qulong, Zhang Zhenjun, Chen Ling, Zhang Zhefeng. Strength evolution law of electric heat treated commercially pure Al wire[J]. Heat Treatment of Metals, 2023, 48(5): 49-53.

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