Crystallography of ferrite-austenite phase transformation induced by nitrogen absorption in Fe-25Cr alloy

Y. Futamura; T. Ando; T. Tsuchiyama; S. Takaki

Crystallography of ferrite-austenite phase transformation induced by nitrogen absorption in Fe-25Cr alloy

Y. Futamura, T. Ando, T. Tsuchiyama, S. Takaki

Research output: Contribution to conference › Paper › peer-review

Abstract

The phase transformation from ferrite to austenite induced by solution nitriding was discussed in 25mass%Cr ferritic stainless steel on the basis of crystallographic analysis by EBSP method. In the early stage of solution nitriding, austenite grains containing approximately 1mass% nitrogen nucleated at the material surface, and then they gradually grew into the material with solution nitriding. EBSP measurement for the solution-nitrided specimens revealed that some austenite grains have the crystallographic orientations close to Kurdjumov-Sachs (K-S) relationship with the parent ferrite grain; however, there were a lot of austenite grains with no specific orientation relationship. This suggests that the crystallographic orientation of the product phase is not fixed only by that of the parent phase when it nucleates at specimen surface.

Original language	English
Pages	153-159
Number of pages	7
Publication status	Published - 2005
Event	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005 - Phoenix, AZ, United States Duration: May 29 2005 → Jun 3 2005

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Other	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005
Country/Territory	United States
City	Phoenix, AZ
Period	5/29/05 → 6/3/05

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

Crystallography of ferrite-austenite phase transformation induced by nitrogen absorption in Fe-25Cr alloy. / Futamura, Y.; Ando, T.; Tsuchiyama, T. et al.
2005. 153-159 Paper presented at International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005, Phoenix, AZ, United States.

Research output: Contribution to conference › Paper › peer-review

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title = "Crystallography of ferrite-austenite phase transformation induced by nitrogen absorption in Fe-25Cr alloy",

abstract = "The phase transformation from ferrite to austenite induced by solution nitriding was discussed in 25mass%Cr ferritic stainless steel on the basis of crystallographic analysis by EBSP method. In the early stage of solution nitriding, austenite grains containing approximately 1mass% nitrogen nucleated at the material surface, and then they gradually grew into the material with solution nitriding. EBSP measurement for the solution-nitrided specimens revealed that some austenite grains have the crystallographic orientations close to Kurdjumov-Sachs (K-S) relationship with the parent ferrite grain; however, there were a lot of austenite grains with no specific orientation relationship. This suggests that the crystallographic orientation of the product phase is not fixed only by that of the parent phase when it nucleates at specimen surface.",

author = "Y. Futamura and T. Ando and T. Tsuchiyama and S. Takaki",

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language = "English",

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note = "International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005 ; Conference date: 29-05-2005 Through 03-06-2005",

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TY - CONF

T1 - Crystallography of ferrite-austenite phase transformation induced by nitrogen absorption in Fe-25Cr alloy

AU - Futamura, Y.

AU - Ando, T.

AU - Tsuchiyama, T.

AU - Takaki, S.

PY - 2005

Y1 - 2005

N2 - The phase transformation from ferrite to austenite induced by solution nitriding was discussed in 25mass%Cr ferritic stainless steel on the basis of crystallographic analysis by EBSP method. In the early stage of solution nitriding, austenite grains containing approximately 1mass% nitrogen nucleated at the material surface, and then they gradually grew into the material with solution nitriding. EBSP measurement for the solution-nitrided specimens revealed that some austenite grains have the crystallographic orientations close to Kurdjumov-Sachs (K-S) relationship with the parent ferrite grain; however, there were a lot of austenite grains with no specific orientation relationship. This suggests that the crystallographic orientation of the product phase is not fixed only by that of the parent phase when it nucleates at specimen surface.

AB - The phase transformation from ferrite to austenite induced by solution nitriding was discussed in 25mass%Cr ferritic stainless steel on the basis of crystallographic analysis by EBSP method. In the early stage of solution nitriding, austenite grains containing approximately 1mass% nitrogen nucleated at the material surface, and then they gradually grew into the material with solution nitriding. EBSP measurement for the solution-nitrided specimens revealed that some austenite grains have the crystallographic orientations close to Kurdjumov-Sachs (K-S) relationship with the parent ferrite grain; however, there were a lot of austenite grains with no specific orientation relationship. This suggests that the crystallographic orientation of the product phase is not fixed only by that of the parent phase when it nucleates at specimen surface.

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M3 - Paper

AN - SCOPUS:33645231822

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T2 - International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005

Y2 - 29 May 2005 through 3 June 2005

ER -

Crystallography of ferrite-austenite phase transformation induced by nitrogen absorption in Fe-25Cr alloy

Abstract

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