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

Kenta Yamanaka; Manami Mori; Akihiko Chiba

doi:10.1016/j.msea.2011.04.027

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

Kenta Yamanaka, Manami Mori, Akihiko Chiba

Research output: Contribution to journal › Article › peer-review

67 Citations (Scopus)

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 language	English
Pages (from-to)	5961-5966
Number of pages	6
Journal	Materials Science and Engineering A
Volume	528
Issue number	18
DOIs	https://doi.org/10.1016/j.msea.2011.04.027
Publication status	Published - 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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10.1016/j.msea.2011.04.027

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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.",

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AU - Mori, Manami

AU - Chiba, Akihiko

PY - 2011/7/15

Y1 - 2011/7/15

N2 - 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.

AB - 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.

KW - Biomaterials

KW - Dynamic recrystallization

KW - Ni-free Co-Cr-Mo alloy

KW - Tensile properties

KW - Thermomechanical processing

KW - Ultrafine-grained materials

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

Abstract

Keywords

ASJC Scopus subject areas

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