Mechanical properties of as-forged Ni-free Co-29Cr-6Mo alloys with ultrafine-grained microstructure

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Abstract

We have succeeded the fabrication of Ni-free Co-29Cr-6Mo alloys with ultrafine-grained (UFG) microstructures via conventional hot forging process with the reduction up to 83.4% (true strain of 1.8). Grain refinement to submicron order is an effective method for improvement of strength and athermal martensite e{open} phase formed during quenching seems to determine the ductility of this alloy system.

Original languageEnglish
Pages (from-to)5961-5966
Number of pages6
JournalMaterials Science and Engineering A
Volume528
Issue number18
DOIs
Publication statusPublished - 2011 Jul 15

Keywords

  • Biomaterials
  • Dynamic recrystallization
  • Ni-free Co-Cr-Mo alloy
  • Tensile properties
  • Thermomechanical processing
  • Ultrafine-grained materials

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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