δ/γ transformation in non-equilibrium solidified peritectic Fe-Ni alloy

Yuzeng Chen; Feng Liu; Gencang Yang; Ning Liu; Yaohe Zhou

doi:10.1007/s11433-007-0036-8

δ/γ transformation in non-equilibrium solidified peritectic Fe-Ni alloy

Yuzeng Chen, Feng Liu, Gencang Yang, Ning Liu, Yaohe Zhou

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

6 Scopus citations

Abstract

Through phase transformation kinetic analysis and experimental observation, the δ/γ transformation occurring in the non-equilibrium peritectic Fe-4.33at.%Ni alloys was systematically investigated. According to JMA solid-state transformation kinetic theory, the Time-Temperature-Transformation (TTT) curves of the δ/γ transformation in peritectic Fe-Ni alloy were calculated. On this basis, the physical correlation between the δ/γ transformation and the initial undercooling of melt (ΔT) was elucidated. The results indicate that the change of ΔT can alter not only the overall δ/γ transformation pathways but also the transformation fraction with respect to each transformation mechanism.

Original language	English
Pages (from-to)	421-431
Number of pages	11
Journal	Science in China, Series G: Physics, Mechanics and Astronomy
Volume	50
Issue number	4
DOIs	https://doi.org/10.1007/s11433-007-0036-8
State	Published - Aug 2007

Keywords

δ/γ transformation
Fe-Ni alloy
Non-equilibrium solidification
Peritectic reaction
Undercooling

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10.1007/s11433-007-0036-8

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title = "δ/γ transformation in non-equilibrium solidified peritectic Fe-Ni alloy",

abstract = "Through phase transformation kinetic analysis and experimental observation, the δ/γ transformation occurring in the non-equilibrium peritectic Fe-4.33at.%Ni alloys was systematically investigated. According to JMA solid-state transformation kinetic theory, the Time-Temperature-Transformation (TTT) curves of the δ/γ transformation in peritectic Fe-Ni alloy were calculated. On this basis, the physical correlation between the δ/γ transformation and the initial undercooling of melt (ΔT) was elucidated. The results indicate that the change of ΔT can alter not only the overall δ/γ transformation pathways but also the transformation fraction with respect to each transformation mechanism.",

keywords = "δ/γ transformation, Fe-Ni alloy, Non-equilibrium solidification, Peritectic reaction, Undercooling",

author = "Yuzeng Chen and Feng Liu and Gencang Yang and Ning Liu and Yaohe Zhou",

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TY - JOUR

T1 - δ/γ transformation in non-equilibrium solidified peritectic Fe-Ni alloy

AU - Chen, Yuzeng

AU - Liu, Feng

AU - Yang, Gencang

AU - Liu, Ning

AU - Zhou, Yaohe

PY - 2007/8

Y1 - 2007/8

N2 - Through phase transformation kinetic analysis and experimental observation, the δ/γ transformation occurring in the non-equilibrium peritectic Fe-4.33at.%Ni alloys was systematically investigated. According to JMA solid-state transformation kinetic theory, the Time-Temperature-Transformation (TTT) curves of the δ/γ transformation in peritectic Fe-Ni alloy were calculated. On this basis, the physical correlation between the δ/γ transformation and the initial undercooling of melt (ΔT) was elucidated. The results indicate that the change of ΔT can alter not only the overall δ/γ transformation pathways but also the transformation fraction with respect to each transformation mechanism.

AB - Through phase transformation kinetic analysis and experimental observation, the δ/γ transformation occurring in the non-equilibrium peritectic Fe-4.33at.%Ni alloys was systematically investigated. According to JMA solid-state transformation kinetic theory, the Time-Temperature-Transformation (TTT) curves of the δ/γ transformation in peritectic Fe-Ni alloy were calculated. On this basis, the physical correlation between the δ/γ transformation and the initial undercooling of melt (ΔT) was elucidated. The results indicate that the change of ΔT can alter not only the overall δ/γ transformation pathways but also the transformation fraction with respect to each transformation mechanism.

KW - δ/γ transformation

KW - Fe-Ni alloy

KW - Non-equilibrium solidification

KW - Peritectic reaction

KW - Undercooling

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SN - 1672-1799

VL - 50

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JO - Science in China, Series G: Physics, Mechanics and Astronomy

JF - Science in China, Series G: Physics, Mechanics and Astronomy

IS - 4

ER -

δ/γ transformation in non-equilibrium solidified peritectic Fe-Ni alloy

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