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

Auteurs :  K. ABIB, F. HADJ LARBI, L. Rabahi, B. Alili, D. Bradai
Année : 2015
Domaine : Métallurgie
Type : Article de journal
Revue : Transactions of Nonferrous Metals Society of China
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés : equal channel angular pressing (ECAP), Cu-Cr-Zr alloy, differential scanning calorimetry (DSC), electrical conductivity, stored energy

Résumé : 

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.