Influence of microalloying with zirconium on the structure and properties of Cu-Cr alloy after high pressure torsion


SHANGINA D. V. , BOCHVAR N. R. , GORSHENKOV M. V. , YANAR H. , PÜRÇEK G. , DOBATKIN S. V.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, vol.650, pp.63-66, 2016 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 650
  • Publication Date: 2016
  • Doi Number: 10.1016/j.msea.2015.10.008
  • Title of Journal : MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
  • Page Numbers: pp.63-66
  • Keywords: Copper alloy, Severe plastic deformation, Ultrafine grained structure, Aging, Electrical conductivity, ZR ALLOY, MECHANICAL-PROPERTIES, HEAT-TREATMENTS, PRECIPITATION, CONDUCTIVITY, BEHAVIOR, MICROSTRUCTURE, DEFORMATION, STRENGTH, SYSTEM

Abstract

Alloying of binary Cu-Cr alloy with a small amount (0.08%) of zirconium decreases its average grain size from 209 nm to 141 nm after high pressure torsion (HPT). A combination of quenching, HPT and following aging of Cu-Cr-Zr alloy allows obtaining an ultrafine grained (UFG) structure (grain size: 188 nm) having high strength and sufficient electrical conductivity. (C) 2015 Elsevier B.V. All rights reserved.