Effects of minor elements X(X=Mo, Ni, Ti) on aympotic behavior along peak top of the major elenet in Fe-Cr type alloys

Norihisa Takemoto*, Yoshiyuki Saito

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Numerical simulations of phase separation in Fe-Cr-Mo and Fe-Cr-Ti ternary alloys and Fe-Cr-Mo-Ti quaternary alloys were performed with use of the Cahn-Hilliard equation for ternary alloys and quaternary alloys. We obtained that the asymptotic behaviours of minor element X(Mo, Ti) in Fe-Cr-X ternary alloys and Fe-Cr-Mo-Ti quaternary alloys along a trajectory of a peak top of the major element Cr was classified into three groups according to the sign of the second derivative of the chemical free energy with respect to the compositions of Cr and X(Mo, Ti). Theoretical analysis for the symptotic behavior Mo in Fe-Cr-Mo ternary has been formed in order to discuss the simulation results. Effect of the other elements, such as Ti on separation behaviours of Cr in Fe-Cr-Ti ternary alloys were also investigated. A simple theory for describing the effect of subsutitutonal element in Fe-Cr-X ternary alloys on the basis of simulations and theoretical analyses was proposed.

本文言語English
ホスト出版物のタイトルAdvanced Materials Research
ページ423-430
ページ数8
409
DOI
出版ステータスPublished - 2012
イベント7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011 - Quebec City, QC
継続期間: 2011 8 12011 8 5

出版物シリーズ

名前Advanced Materials Research
409
ISSN(印刷版)10226680

Other

Other7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
CityQuebec City, QC
Period11/8/111/8/5

ASJC Scopus subject areas

  • 工学(全般)

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