Effects of zirconium addition on microstructures and mechanical properties of Co-29Cr-6Mo alloy

Sang Hak Lee; Tomo Uchikanezaki; Naoyuki Nomura; Mitsuru Nakamura; Akihiko Chiba

doi:10.2320/matertrans.48.1084

Effects of zirconium addition on microstructures and mechanical properties of Co-29Cr-6Mo alloy

Sang Hak Lee, Tomo Uchikanezaki, Naoyuki Nomura, Mitsuru Nakamura, Akihiko Chiba

Materials Processing and Characterization Division

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

18 Citations (Scopus)

Abstract

Co-29Cr-6Mo alloys consisting of 0-1.76% Zr were prepared and heat-treated at 1210°C for 2h or 1230°C for 3h. Three types of precipitates were identified. With more than 0.37% Zr content, precipitates are mixtures of a phase and (Zr, Mo)-rich phase. The α phase dissolves into a matrix and the (Zr, Mo)-rich phases change its composition into a Zr-rich phase with heat treatment. An alloy with a solid solution containing 0.01% Zr exhibits improved mechanical properties.

Original language	English
Pages (from-to)	1084-1088
Number of pages	5
Journal	Materials Transactions
Volume	48
Issue number	5
DOIs	https://doi.org/10.2320/matertrans.48.1084
Publication status	Published - 2007 May

Keywords

Biomaterial
Cobalt chromium molybdenum alloy
Heat treatment
Mechanical properties
Microstructure
Zirconium

ASJC Scopus subject areas

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

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abstract = "Co-29Cr-6Mo alloys consisting of 0-1.76% Zr were prepared and heat-treated at 1210°C for 2h or 1230°C for 3h. Three types of precipitates were identified. With more than 0.37% Zr content, precipitates are mixtures of a phase and (Zr, Mo)-rich phase. The α phase dissolves into a matrix and the (Zr, Mo)-rich phases change its composition into a Zr-rich phase with heat treatment. An alloy with a solid solution containing 0.01% Zr exhibits improved mechanical properties.",

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T1 - Effects of zirconium addition on microstructures and mechanical properties of Co-29Cr-6Mo alloy

AU - Lee, Sang Hak

AU - Uchikanezaki, Tomo

AU - Nomura, Naoyuki

AU - Nakamura, Mitsuru

AU - Chiba, Akihiko

PY - 2007/5

Y1 - 2007/5

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AB - Co-29Cr-6Mo alloys consisting of 0-1.76% Zr were prepared and heat-treated at 1210°C for 2h or 1230°C for 3h. Three types of precipitates were identified. With more than 0.37% Zr content, precipitates are mixtures of a phase and (Zr, Mo)-rich phase. The α phase dissolves into a matrix and the (Zr, Mo)-rich phases change its composition into a Zr-rich phase with heat treatment. An alloy with a solid solution containing 0.01% Zr exhibits improved mechanical properties.

KW - Biomaterial

KW - Cobalt chromium molybdenum alloy

KW - Heat treatment

KW - Mechanical properties

KW - Microstructure

KW - Zirconium

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Effects of zirconium addition on microstructures and mechanical properties of Co-29Cr-6Mo alloy

Abstract

Keywords

ASJC Scopus subject areas

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