High-Conductivity Cu-Cr-Sc Alloy

24.6% Stronger

Sc addition significantly enhances yield strength while maintaining high electrical conductivity, effectively inhibiting Cr phase coarsening and recrystallization.

Huang, Tao · Zhang, Chaomin · Ma, Ying Xuan · Jia, Shuguo · Song, Kexing · Zhou, Yanjun · Guo, Xiuhua · Xiao, Zhenpeng · Guo, Huiwen

Rare Metals 2024

Specifications

Yield strength increased

{'zh': '约24.6', 'en': '~24.6'} %

电导率

{'zh': '81.5', 'en': ''} %

Advantages

Sc mainly precipitates as Cu4Sc phase, with a small amount segregating at grain boundaries for pinning

Main strengthening mechanisms identified as dislocation strengthening and precipitation strengthening