Correlation in the parameters obtained by direct-fitting method and modifed williamson-hall method for cold worked iron

Setsuo Takaki, Takuro Masumura, Toshihiro Tsuchiyama

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

In the dislocation characterization using radiation diffraction, the modifed Williamson-Hall method gives the parameter a, f and S, in which the information about crystallite size, dislocation density and screw component of dislocation are contained respectively. On the other hand, the direct-ftting method gives the parameter a, micro-strain e and the correction parameter ωh00. In this study, the correlation in these parameters was investigated in cold rolled ferritic steel (Fe-0.0056%C). Results obtained are as follows: Almost same values were obtained for the parameter a in both methods. The value of parameter e increases as the S-value becomes small even under the same dislocation density. At the constant S-value, however, linear relationship was found between e and f. Between the parameter S and ωh00, there is an identical relationship expressed by the equation; S=1.16+1.46ωh00-3.71ωh002 regardless of dislocation density. In addition, it was confrmed that there is no large effect of texture on the dislocation characterization by the direct-ftting method and the modifed Williamson-Hall method.

元の言語英語
ページ(範囲)648-654
ページ数7
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
105
発行部数6
DOI
出版物ステータス出版済み - 6 2019

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Iron
iron
Ferritic steel
Crystallite size
Textures
Diffraction
Radiation
diffraction radiation
screws
textures
steels

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

これを引用

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title = "Correlation in the parameters obtained by direct-fitting method and modifed williamson-hall method for cold worked iron",
abstract = "In the dislocation characterization using radiation diffraction, the modifed Williamson-Hall method gives the parameter a, f and S, in which the information about crystallite size, dislocation density and screw component of dislocation are contained respectively. On the other hand, the direct-ftting method gives the parameter a, micro-strain e and the correction parameter ωh00. In this study, the correlation in these parameters was investigated in cold rolled ferritic steel (Fe-0.0056{\%}C). Results obtained are as follows: Almost same values were obtained for the parameter a in both methods. The value of parameter e increases as the S-value becomes small even under the same dislocation density. At the constant S-value, however, linear relationship was found between e and f. Between the parameter S and ωh00, there is an identical relationship expressed by the equation; S=1.16+1.46ωh00-3.71ωh002 regardless of dislocation density. In addition, it was confrmed that there is no large effect of texture on the dislocation characterization by the direct-ftting method and the modifed Williamson-Hall method.",
author = "Setsuo Takaki and Takuro Masumura and Toshihiro Tsuchiyama",
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AU - Takaki, Setsuo

AU - Masumura, Takuro

AU - Tsuchiyama, Toshihiro

PY - 2019/6

Y1 - 2019/6

N2 - In the dislocation characterization using radiation diffraction, the modifed Williamson-Hall method gives the parameter a, f and S, in which the information about crystallite size, dislocation density and screw component of dislocation are contained respectively. On the other hand, the direct-ftting method gives the parameter a, micro-strain e and the correction parameter ωh00. In this study, the correlation in these parameters was investigated in cold rolled ferritic steel (Fe-0.0056%C). Results obtained are as follows: Almost same values were obtained for the parameter a in both methods. The value of parameter e increases as the S-value becomes small even under the same dislocation density. At the constant S-value, however, linear relationship was found between e and f. Between the parameter S and ωh00, there is an identical relationship expressed by the equation; S=1.16+1.46ωh00-3.71ωh002 regardless of dislocation density. In addition, it was confrmed that there is no large effect of texture on the dislocation characterization by the direct-ftting method and the modifed Williamson-Hall method.

AB - In the dislocation characterization using radiation diffraction, the modifed Williamson-Hall method gives the parameter a, f and S, in which the information about crystallite size, dislocation density and screw component of dislocation are contained respectively. On the other hand, the direct-ftting method gives the parameter a, micro-strain e and the correction parameter ωh00. In this study, the correlation in these parameters was investigated in cold rolled ferritic steel (Fe-0.0056%C). Results obtained are as follows: Almost same values were obtained for the parameter a in both methods. The value of parameter e increases as the S-value becomes small even under the same dislocation density. At the constant S-value, however, linear relationship was found between e and f. Between the parameter S and ωh00, there is an identical relationship expressed by the equation; S=1.16+1.46ωh00-3.71ωh002 regardless of dislocation density. In addition, it was confrmed that there is no large effect of texture on the dislocation characterization by the direct-ftting method and the modifed Williamson-Hall method.

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