Annealing process of Cu-Te alloys

doi:10.13251/j.issn.0254-6051.2020.06.007

Abstract

Abstract: The effects of annealing process on the mechanical and electrical conductivity properties and microstructure of Cu-Te alloys with 0.02%, 0.07%, 0.10%Te respectively were investigated. The mechanical properties and electrical conductivity of the alloys were tested under different annealing temperatures and annealing time, and the tensile fracture morphology changes at different temperatures were studied by scanning electron microscopy (SEM). The results show that the fracture of the Cu-Te alloys is of ductile type, and the fracture dimples become larger, deeper and more round with the inerease of annealing temperature. With the increase of annealing temperature and annealing time, the conductivity of the alloys continues to increase, while the tensile strength changes little when annealed at 350-390 ℃ for 1 h, the alloys are in the recovery stage. After annealing at 400 ℃ for 1 h, the tensile strength decreases greatly and the alloys are in the recrystallization stage. After cold deformation of 96.5% and annealing at 400 ℃ for 1 h, the Cu-Te alloys obtain the best overall performance.

Key words: Cu-Te alloys, Cu₂Te, recrystallization

CLC Number:

TG146.1

Zhu Mingbiao, Li Mingmao, Li Zhaoxin, Tang Yingying. Annealing process of Cu-Te alloys[J]. Heat Treatment of Metals, 2020, 45(6): 34-38.

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