Diffusion of Cr and Fe in a high-purity Fe-50 mass% Cr-8 mass% W alloy

Koichi Takasawa; Yoshihiro Yamazaki; Seiichi Takaki; Kenji Abiko; Yoshiaki Iijima

doi:10.2320/matertrans.43.178

Diffusion of Cr and Fe in a high-purity Fe-50 mass% Cr-8 mass% W alloy

Koichi Takasawa, Yoshihiro Yamazaki, Seiichi Takaki, Kenji Abiko, Yoshiaki Iijima

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

4 Citations (Scopus)

Abstract

Volume and grain boundary diffusivities of ⁵¹Cr and ⁵⁹Fe in a high purity Fe-50 mass% Cr-8 mass% W (Fe-50Cr-8W) alloy have been determined in the temperature range between 1023 and 1373 K with the sputter-microsectioning technique. The volume diffusion coefficients of Cr and Fe in the Fe-50Cr-8W alloy are smaller than those in a high-purity Fe-50 mass% Cr (Fe-50Cr) alloy. Linear Arrhenius lines for the volume self-diffusion coefficients of both tracers have been observed in the temperature range examined. The activation energies for the volume diffusion of both components in the Fe-50Cr-8W alloy are somewhat smaller than those in the Fe-50Cr alloy. On the other hand, the grain boundary diffusivities of Cr and Fe in the Fe-50Cr-8W alloy at 1123 K are about two orders of magnitude smaller than those in the Fe-50Cr alloy.

Original language	English
Pages (from-to)	178-181
Number of pages	4
Journal	Materials Transactions
Volume	43
Issue number	2
DOIs	https://doi.org/10.2320/matertrans.43.178
Publication status	Published - Feb 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.2320/matertrans.43.178

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title = "Diffusion of Cr and Fe in a high-purity Fe-50 mass% Cr-8 mass% W alloy",

abstract = "Volume and grain boundary diffusivities of 51Cr and 59Fe in a high purity Fe-50 mass% Cr-8 mass% W (Fe-50Cr-8W) alloy have been determined in the temperature range between 1023 and 1373 K with the sputter-microsectioning technique. The volume diffusion coefficients of Cr and Fe in the Fe-50Cr-8W alloy are smaller than those in a high-purity Fe-50 mass% Cr (Fe-50Cr) alloy. Linear Arrhenius lines for the volume self-diffusion coefficients of both tracers have been observed in the temperature range examined. The activation energies for the volume diffusion of both components in the Fe-50Cr-8W alloy are somewhat smaller than those in the Fe-50Cr alloy. On the other hand, the grain boundary diffusivities of Cr and Fe in the Fe-50Cr-8W alloy at 1123 K are about two orders of magnitude smaller than those in the Fe-50Cr alloy.",

author = "Koichi Takasawa and Yoshihiro Yamazaki and Seiichi Takaki and Kenji Abiko and Yoshiaki Iijima",

year = "2002",

month = feb,

doi = "10.2320/matertrans.43.178",

language = "English",

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pages = "178--181",

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T1 - Diffusion of Cr and Fe in a high-purity Fe-50 mass% Cr-8 mass% W alloy

AU - Takasawa, Koichi

AU - Yamazaki, Yoshihiro

AU - Takaki, Seiichi

AU - Abiko, Kenji

AU - Iijima, Yoshiaki

PY - 2002/2

Y1 - 2002/2

N2 - Volume and grain boundary diffusivities of 51Cr and 59Fe in a high purity Fe-50 mass% Cr-8 mass% W (Fe-50Cr-8W) alloy have been determined in the temperature range between 1023 and 1373 K with the sputter-microsectioning technique. The volume diffusion coefficients of Cr and Fe in the Fe-50Cr-8W alloy are smaller than those in a high-purity Fe-50 mass% Cr (Fe-50Cr) alloy. Linear Arrhenius lines for the volume self-diffusion coefficients of both tracers have been observed in the temperature range examined. The activation energies for the volume diffusion of both components in the Fe-50Cr-8W alloy are somewhat smaller than those in the Fe-50Cr alloy. On the other hand, the grain boundary diffusivities of Cr and Fe in the Fe-50Cr-8W alloy at 1123 K are about two orders of magnitude smaller than those in the Fe-50Cr alloy.

AB - Volume and grain boundary diffusivities of 51Cr and 59Fe in a high purity Fe-50 mass% Cr-8 mass% W (Fe-50Cr-8W) alloy have been determined in the temperature range between 1023 and 1373 K with the sputter-microsectioning technique. The volume diffusion coefficients of Cr and Fe in the Fe-50Cr-8W alloy are smaller than those in a high-purity Fe-50 mass% Cr (Fe-50Cr) alloy. Linear Arrhenius lines for the volume self-diffusion coefficients of both tracers have been observed in the temperature range examined. The activation energies for the volume diffusion of both components in the Fe-50Cr-8W alloy are somewhat smaller than those in the Fe-50Cr alloy. On the other hand, the grain boundary diffusivities of Cr and Fe in the Fe-50Cr-8W alloy at 1123 K are about two orders of magnitude smaller than those in the Fe-50Cr alloy.

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Diffusion of Cr and Fe in a high-purity Fe-50 mass% Cr-8 mass% W alloy

Abstract

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