Role of nitrogen addition in stabilizing the γ phase of Biomedical Co-29Cr-6Mo alloy

Y. P. Li; J. S. Yu; S. Kurosu; Y. Koizumi; H. Matsumoto; A. Chiba

doi:10.1016/j.matchemphys.2011.12.081

Role of nitrogen addition in stabilizing the γ phase of Biomedical Co-29Cr-6Mo alloy

Y. P. Li, J. S. Yu, S. Kurosu, Y. Koizumi, H. Matsumoto, A. Chiba

New Industry Creation Hatchery Center (NICHe)

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

33 Citations (Scopus)

Abstract

Three-dimensional atom probe observations and thermodynamic calculations revealed that the mechanism of γ-phase stabilization by N addition in the Co-29Cr-6Mo alloy is different from that in stainless steel: N addition does not lower the free energy of the γ phase in Co-29Cr-6Mo but increases the energy barrier and thus lowers the kinetic rate of the γ → ε transition through the formation of Cr-N short range order.

Original language	English
Pages (from-to)	29-32
Number of pages	4
Journal	Materials Chemistry and Physics
Volume	133
Issue number	1
DOIs	https://doi.org/10.1016/j.matchemphys.2011.12.081
Publication status	Published - 2012 Mar 15

Keywords

A. Alloy
A. Elements
D. Phase transition
D. Thermodynamic properties

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10.1016/j.matchemphys.2011.12.081

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abstract = "Three-dimensional atom probe observations and thermodynamic calculations revealed that the mechanism of γ-phase stabilization by N addition in the Co-29Cr-6Mo alloy is different from that in stainless steel: N addition does not lower the free energy of the γ phase in Co-29Cr-6Mo but increases the energy barrier and thus lowers the kinetic rate of the γ → ε transition through the formation of Cr-N short range order.",

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note = "Funding Information: This research was supported by a Regional Innovation Cluster Program 2010 from the Ministry of Education, Culture, Sports, Science and Technology of Japan .",

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T1 - Role of nitrogen addition in stabilizing the γ phase of Biomedical Co-29Cr-6Mo alloy

AU - Li, Y. P.

AU - Yu, J. S.

AU - Kurosu, S.

AU - Koizumi, Y.

AU - Matsumoto, H.

AU - Chiba, A.

N1 - Funding Information: This research was supported by a Regional Innovation Cluster Program 2010 from the Ministry of Education, Culture, Sports, Science and Technology of Japan .

PY - 2012/3/15

Y1 - 2012/3/15

N2 - Three-dimensional atom probe observations and thermodynamic calculations revealed that the mechanism of γ-phase stabilization by N addition in the Co-29Cr-6Mo alloy is different from that in stainless steel: N addition does not lower the free energy of the γ phase in Co-29Cr-6Mo but increases the energy barrier and thus lowers the kinetic rate of the γ → ε transition through the formation of Cr-N short range order.

AB - Three-dimensional atom probe observations and thermodynamic calculations revealed that the mechanism of γ-phase stabilization by N addition in the Co-29Cr-6Mo alloy is different from that in stainless steel: N addition does not lower the free energy of the γ phase in Co-29Cr-6Mo but increases the energy barrier and thus lowers the kinetic rate of the γ → ε transition through the formation of Cr-N short range order.

KW - A. Alloy

KW - A. Elements

KW - D. Phase transition

KW - D. Thermodynamic properties

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EP - 32

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1

ER -

Role of nitrogen addition in stabilizing the γ phase of Biomedical Co-29Cr-6Mo alloy

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Keywords

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