Possibility of auto-tempering in martensitic steels containing carbon

Setsuo Takaki; Daichi Akama; Nobuo Nakada; Toshihiro Tsuchiyama; Ryuji Uemori; Masahiro Murakami; Kengo Iwanaga; Shigeru Mizoguchi

Possibility of auto-tempering in martensitic steels containing carbon

Setsuo Takaki, Daichi Akama, Nobuo Nakada, Toshihiro Tsuchiyama, Ryuji Uemori, Masahiro Murakami, Kengo Iwanaga, Shigeru Mizoguchi

Research Center for Steel

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Martensitic steels containing carbon are characterized by their high tensile strength and the solid solution strengthening by super saturated carbon has been believed to be the dominant strengthening mechanisms. In this study, X-ray diffraction analysis revealed that the lattice structure of as quenched martensite is not bct but bcc independent of carbon content in the carbon concentration range below 0.5% at least. In addition, a theoretical analysis on the strengthening mechanism indicated the fact that the strength of as quenched martensite can be reasonably explained by the particle dispersion strengthening based on the particle cutting model. As a result, it was confirmed that auto-tempering cannot be avoided in conventional martensitic steels under the engineering cooling condition.

Original language	English
Title of host publication	PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
Editors	Long-Qing Chen, Matthias Militzer, Gianluigi Botton, James Howe, Chadwick Sinclair, Hatem Zurob
Publisher	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
Pages	79-80
Number of pages	2
ISBN (Electronic)	9780692437360
Publication status	Published - 2015
Event	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015 - Whistler, Canada Duration: Jun 28 2015 → Jul 3 2015

Publication series

Name	PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015

Other

Other	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015
Country/Territory	Canada
City	Whistler
Period	6/28/15 → 7/3/15

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Inorganic Chemistry
Materials Chemistry
Metals and Alloys

Cite this

Takaki, S., Akama, D., Nakada, N., Tsuchiyama, T., Uemori, R., Murakami, M., Iwanaga, K., & Mizoguchi, S. (2015). Possibility of auto-tempering in martensitic steels containing carbon. In L-Q. Chen, M. Militzer, G. Botton, J. Howe, C. Sinclair, & H. Zurob (Eds.), PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 (pp. 79-80). (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015). International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015.

Possibility of auto-tempering in martensitic steels containing carbon. / Takaki, Setsuo; Akama, Daichi; Nakada, Nobuo et al.

PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. ed. / Long-Qing Chen; Matthias Militzer; Gianluigi Botton; James Howe; Chadwick Sinclair; Hatem Zurob. International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, 2015. p. 79-80 (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Takaki, S, Akama, D, Nakada, N, Tsuchiyama, T , Uemori, R, Murakami, M, Iwanaga, K & Mizoguchi, S 2015, Possibility of auto-tempering in martensitic steels containing carbon. in L-Q Chen, M Militzer, G Botton, J Howe, C Sinclair & H Zurob (eds), PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, pp. 79-80, International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015, Whistler, Canada, 6/28/15.

Takaki S, Akama D, Nakada N, Tsuchiyama T , Uemori R, Murakami M et al. Possibility of auto-tempering in martensitic steels containing carbon. In Chen L-Q, Militzer M, Botton G, Howe J, Sinclair C, Zurob H, editors, PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. 2015. p. 79-80. (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015).

Takaki, Setsuo ; Akama, Daichi ; Nakada, Nobuo et al. / Possibility of auto-tempering in martensitic steels containing carbon. PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. editor / Long-Qing Chen ; Matthias Militzer ; Gianluigi Botton ; James Howe ; Chadwick Sinclair ; Hatem Zurob. International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, 2015. pp. 79-80 (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015).

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title = "Possibility of auto-tempering in martensitic steels containing carbon",

abstract = "Martensitic steels containing carbon are characterized by their high tensile strength and the solid solution strengthening by super saturated carbon has been believed to be the dominant strengthening mechanisms. In this study, X-ray diffraction analysis revealed that the lattice structure of as quenched martensite is not bct but bcc independent of carbon content in the carbon concentration range below 0.5% at least. In addition, a theoretical analysis on the strengthening mechanism indicated the fact that the strength of as quenched martensite can be reasonably explained by the particle dispersion strengthening based on the particle cutting model. As a result, it was confirmed that auto-tempering cannot be avoided in conventional martensitic steels under the engineering cooling condition.",

author = "Setsuo Takaki and Daichi Akama and Nobuo Nakada and Toshihiro Tsuchiyama and Ryuji Uemori and Masahiro Murakami and Kengo Iwanaga and Shigeru Mizoguchi",

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booktitle = "PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015",

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AU - Takaki, Setsuo

AU - Akama, Daichi

AU - Nakada, Nobuo

AU - Tsuchiyama, Toshihiro

AU - Uemori, Ryuji

AU - Murakami, Masahiro

AU - Iwanaga, Kengo

AU - Mizoguchi, Shigeru

PY - 2015

Y1 - 2015

N2 - Martensitic steels containing carbon are characterized by their high tensile strength and the solid solution strengthening by super saturated carbon has been believed to be the dominant strengthening mechanisms. In this study, X-ray diffraction analysis revealed that the lattice structure of as quenched martensite is not bct but bcc independent of carbon content in the carbon concentration range below 0.5% at least. In addition, a theoretical analysis on the strengthening mechanism indicated the fact that the strength of as quenched martensite can be reasonably explained by the particle dispersion strengthening based on the particle cutting model. As a result, it was confirmed that auto-tempering cannot be avoided in conventional martensitic steels under the engineering cooling condition.

AB - Martensitic steels containing carbon are characterized by their high tensile strength and the solid solution strengthening by super saturated carbon has been believed to be the dominant strengthening mechanisms. In this study, X-ray diffraction analysis revealed that the lattice structure of as quenched martensite is not bct but bcc independent of carbon content in the carbon concentration range below 0.5% at least. In addition, a theoretical analysis on the strengthening mechanism indicated the fact that the strength of as quenched martensite can be reasonably explained by the particle dispersion strengthening based on the particle cutting model. As a result, it was confirmed that auto-tempering cannot be avoided in conventional martensitic steels under the engineering cooling condition.

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BT - PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015

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Possibility of auto-tempering in martensitic steels containing carbon

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