Research Article | Open Access | 10.31586/Metal.0401.01

Thermal Stability of Ultrafine Grained CuCrZr Alloy Produced by Continuous Extrusion

Abstract

The Cu-0.36Cr-0.15Zr alloy was prepared by solid solution, continuous extrusion and cold deformation. The microstructural evolution, microhardness and the thermal analysis were examined for the alloy after annealing treatment at different temperatures ranging from 300 oC to 700 oC. Experimental results show that the microstructure of the alloy remains stable after annealed below 500 oC due to the pinning effect of dislocations from the nanoscale precipitates. However, recrystallization and grain growth took place after a 600 oC annealing treatment when the precipitates grew up and lose inhibition of movement of dislocations and grain boundaries. Meanwhile, the higher dislocation density and finer grains introduced by continuous extrusion accelerate the recrystallization process compared with that prepared by the traditional rolling process.

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Published
January 7, 2019
How to Cite
FENG, Hui et al. Thermal Stability of Ultrafine Grained CuCrZr Alloy Produced by Continuous Extrusion. Trends Journal of Sciences Research, [S.l.], v. 4, n. 1, p. 1-8, jan. 2019. ISSN 2377-8083. Available at: <http://tjsr.org/journal/index.php/tjsr/article/view/107>. Date accessed: 18 june 2019.
Section
Materials