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DSC analysis of commercial Cu-Cr-Zr alloy processed by equal channel angular pressing

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Transactions of Nonferrous Metals Society of China

Volume 25, Issue 3, 2015, Pages 838-843

DSC analysis of commercial Cu-Cr-Zr alloy processed by equal channel angular pressing

K. ABIB, F. HADJ LARBI, L. Rabahi, B. Alili, D. Bradai

Abstract: Samples of a commercial Cu-1Cr-0.1Zr (mass fraction, %) alloy were subjected to equal channel angular pressing(ECAP) up to 16 passes at room temperature following route Bc. Differential scanning calorimetry (DSC) was used to highlight theprecipitation sequence and to calculate the stored energy, recrystallization temperature and activation energy after each ECAP pass.On another hand, electrical properties were correlated with the dislocation density. Results show that the stored energy increasesupon increasing ECAP pass numbers, while the recrystallization temperature decreases significantly.

Keywords : equal channel angular pressing (ECAP), Cu-Cr-Zr alloy, differential scanning calorimetry (DSC), electrical conductivity, stored energy

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