Effect of solution treatment on microstructure and properties of Cu-Cr-Zr alloy

doi:10.13251/j.issn.0254-6051.2022.01.027

Abstract

Abstract: Hot-rolled Cu-1.0Cr-0.1Zr alloy was solid-solution treated in a resistance furnace at different temperatures for different holding time. The microstructure and properties of the solution treated alloy were examined and the effect of solution temperature and holding time on microstructure and properties of the alloy were analyzed. The results show that the microstructure and properties of the alloy after solution treatment are affected by recovery, recrystallization, undissolved particle resolution and grain growth. As the solid solution temperature rises, the hardness of the alloy first drops sharply, and then continues to rise, while the electrical conductivity continues to drop. with the extension of solution time, the hardness of the alloy increases parabolically and tends to be flat, while the change in conductivity is the opposite. When solution treatment at 950 ℃ for 120 min, the solution is basically completed, and the hardness is 58.9 HBS and the conductivity is 50%IACS.

Key words: Cu-Cr-Zr alloy, solution temperature, holding time, hardness, electrical conductivity

CLC Number:

TG142.1

Ma Yuxia, Dang Shue, Chen Huiqin. Effect of solution treatment on microstructure and properties of Cu-Cr-Zr alloy[J]. Heat Treatment of Metals, 2022, 47(1): 163-166.

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