The Effect of Severe Plastic Deformation and Heat Treatment on CuCrZr Alloys
A. Kováčováa, T. Kvačkaj a, R. Kočiško a, L. Dragošek b, and L. Lityńska-Dobrzyńska c
aInstitute of Materials, Faculty of Metallurgy, Technical University of Košice, Vysokoškolská 4, 042 00 Košice, Slovakia
bInstitute of Materials and Machine Mechanics, Slovak Academy of Sciences - Inoval, Priemyselná 12, 965 01 Ladomerská Vieska - Žiar nad Hronom, Slovakia
cInstitute of Metallurgy and Materials Science of the Polish Academy of Sciences, W.S. Reymonta 25, 30 059 Kraków, Poland
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CuCrZr alloy was subjected to equal channel angular pressing method, belonging to the severe plastic deformation group, followed by heat treatment under different ageing conditions to optimize mechanical properties of the alloy. Before equal channel angular pressing, CuCrZr alloy was treated by solution annealing at temperature 1020°C for 1 h. Afterwards, samples were pressed through an equal channel angular pressing die once at room temperature and subjected to artificial ageing under different conditions (200, 400, 450, 480°C for 30, 60, 90, 120, 150 min). Optimization of the CuCrZr alloy was done through the study of mechanical properties and microhardness as a function of ageing temperature and time considering the progress in microstructural/substructural features.

DOI: 10.12693/APhysPolA.131.1336
PACS numbers: 81.05.Bx, 81.40.Cd, 61.72.Ff