Dependence of solute carbon concentration on electrical resistivity of retained austenite

Shohei Uranaka; Chikahiro Nishimura; Issei Hirashima; Takuya Maeda; Takuro Masumura; Toshihiro Tsuchiyama; Yuzo Kawamoto; Hiroyuki Shirahata; Ryuji Uemori

doi:10.1016/j.scriptamat.2022.114791

Dependence of solute carbon concentration on electrical resistivity of retained austenite

Shohei Uranaka, Chikahiro Nishimura, Issei Hirashima, Takuya Maeda, Takuro Masumura, Toshihiro Tsuchiyama, Yuzo Kawamoto, Hiroyuki Shirahata, Ryuji Uemori

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

2 Citations (Scopus)

Abstract

The relationship of solid solution carbon and electrical resistivity in retained austenite was investigated by using as-quenched martensitic specimens of Fe-10mass%Ni alloys with added carbon up to 0.9 mass%. With increasing carbon content, the volume fraction of retained austenite increased, and simultaneously, the electrical resistivity of the bulk specimen also increased. Four-types of multi-phase models were applied to evaluate the electrical resistivity of each phase. As a result, the electrical resistivity of retained austenite was found to be increased with the increment of solute carbon concentration monotonously. The dependence of the solute carbon concentration (C_sol) on the electrical resistivity of retained austenite (Δρ_γ) could be formulated as Δρ_γ [mΩ•mm] = 0.26 × C_sol [mass%].

Original language	English
Article number	114791
Journal	Scripta Materialia
Volume	218
DOIs	https://doi.org/10.1016/j.scriptamat.2022.114791
Publication status	Published - Sept 2022

All Science Journal Classification (ASJC) codes

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

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10.1016/j.scriptamat.2022.114791

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title = "Dependence of solute carbon concentration on electrical resistivity of retained austenite",

abstract = "The relationship of solid solution carbon and electrical resistivity in retained austenite was investigated by using as-quenched martensitic specimens of Fe-10mass%Ni alloys with added carbon up to 0.9 mass%. With increasing carbon content, the volume fraction of retained austenite increased, and simultaneously, the electrical resistivity of the bulk specimen also increased. Four-types of multi-phase models were applied to evaluate the electrical resistivity of each phase. As a result, the electrical resistivity of retained austenite was found to be increased with the increment of solute carbon concentration monotonously. The dependence of the solute carbon concentration (Csol) on the electrical resistivity of retained austenite (Δργ) could be formulated as Δργ [mΩ•mm] = 0.26 × Csol [mass%].",

author = "Shohei Uranaka and Chikahiro Nishimura and Issei Hirashima and Takuya Maeda and Takuro Masumura and Toshihiro Tsuchiyama and Yuzo Kawamoto and Hiroyuki Shirahata and Ryuji Uemori",

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year = "2022",

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doi = "10.1016/j.scriptamat.2022.114791",

language = "English",

volume = "218",

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TY - JOUR

T1 - Dependence of solute carbon concentration on electrical resistivity of retained austenite

AU - Uranaka, Shohei

AU - Nishimura, Chikahiro

AU - Hirashima, Issei

AU - Maeda, Takuya

AU - Masumura, Takuro

AU - Tsuchiyama, Toshihiro

AU - Kawamoto, Yuzo

AU - Shirahata, Hiroyuki

AU - Uemori, Ryuji

PY - 2022/9

Y1 - 2022/9

N2 - The relationship of solid solution carbon and electrical resistivity in retained austenite was investigated by using as-quenched martensitic specimens of Fe-10mass%Ni alloys with added carbon up to 0.9 mass%. With increasing carbon content, the volume fraction of retained austenite increased, and simultaneously, the electrical resistivity of the bulk specimen also increased. Four-types of multi-phase models were applied to evaluate the electrical resistivity of each phase. As a result, the electrical resistivity of retained austenite was found to be increased with the increment of solute carbon concentration monotonously. The dependence of the solute carbon concentration (Csol) on the electrical resistivity of retained austenite (Δργ) could be formulated as Δργ [mΩ•mm] = 0.26 × Csol [mass%].

AB - The relationship of solid solution carbon and electrical resistivity in retained austenite was investigated by using as-quenched martensitic specimens of Fe-10mass%Ni alloys with added carbon up to 0.9 mass%. With increasing carbon content, the volume fraction of retained austenite increased, and simultaneously, the electrical resistivity of the bulk specimen also increased. Four-types of multi-phase models were applied to evaluate the electrical resistivity of each phase. As a result, the electrical resistivity of retained austenite was found to be increased with the increment of solute carbon concentration monotonously. The dependence of the solute carbon concentration (Csol) on the electrical resistivity of retained austenite (Δργ) could be formulated as Δργ [mΩ•mm] = 0.26 × Csol [mass%].

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VL - 218

JO - Scripta Materialia

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Dependence of solute carbon concentration on electrical resistivity of retained austenite

Abstract

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