Specimen size effects on fracture toughness of F82H steel for fusion blanket structural material

Byung Jun Kim; Ryuta Kasada; Akihiko Kimura; Hiroyasu Tanigawa

doi:10.1007/978-4-431-53910-0_38

Specimen size effects on fracture toughness of F82H steel for fusion blanket structural material

Byung Jun Kim, Ryuta Kasada, Akihiko Kimura, Hiroyasu Tanigawa

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

3 Citations (Scopus)

Abstract

Fusion energy has been considered to contribute to reducing emission of carbon dioxide effectively. Understanding and evaluating the fracture toughness behavior of neutron-irradiated reduced-activation ferritic (RAF) steels are essential in the design and operation of fusion reactor. In order to produce an enough database of irradiation effects on materials, the reduction of the specimen volume is required to acquire an enough number of data points. In the ITER Broader Approach (BA) project, applicability of small specimen test techniques (SSTT) has been examined to evaluate irradiation-induced degradation of fracture toughness of F82H steel. The master curve method, which was provided by the American Society for Testing and Materials (ASTM), is specified as a standard test method for determination of reference temperature for ferritic steels in the transition range. Fracture toughness tests were carried out for F82H steel in order to evaluate the effects of specimen size on the shift of transition curve using the various sizes of specimens (1 CT, 1/2 CT and 1/4 CT). The master curve approach was made for evaluation of fracture toughness of F82H with subsized specimens with constraint loss by referring to the ASTM E1921. Small specimen tests can be applicable to evaluate the fracture toughness of F82H steel with no substantial effect of specimen size.

Original language	English
Title of host publication	Zero-Carbon Energy Kyoto 2010
Subtitle of host publication	Proceedings of the Second International Symposium of Global COE Program "Energy Science in the Age of Global Warming-Toward CO2 Zero-emission Energy System"
Publisher	Springer Verlag
Pages	286-291
Number of pages	6
ISBN (Print)	9784431539094
DOIs	https://doi.org/10.1007/978-4-431-53910-0_38
Publication status	Published - 2011
Externally published	Yes

Publication series

Name	Green Energy and Technology
Volume	66
ISSN (Print)	1865-3529
ISSN (Electronic)	1865-3537

Keywords

F82H
Fracture toughness
Master curve
Small specimen test techniques
Specimen size effect

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Management, Monitoring, Policy and Law
Industrial and Manufacturing Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/978-4-431-53910-0_38

Cite this

Kim, B. J., Kasada, R., Kimura, A., & Tanigawa, H. (2011). Specimen size effects on fracture toughness of F82H steel for fusion blanket structural material. In Zero-Carbon Energy Kyoto 2010: Proceedings of the Second International Symposium of Global COE Program "Energy Science in the Age of Global Warming-Toward CO2 Zero-emission Energy System" (pp. 286-291). (Green Energy and Technology; Vol. 66). Springer Verlag. https://doi.org/10.1007/978-4-431-53910-0_38

Specimen size effects on fracture toughness of F82H steel for fusion blanket structural material. / Kim, Byung Jun; Kasada, Ryuta; Kimura, Akihiko et al.

Zero-Carbon Energy Kyoto 2010: Proceedings of the Second International Symposium of Global COE Program "Energy Science in the Age of Global Warming-Toward CO2 Zero-emission Energy System". Springer Verlag, 2011. p. 286-291 (Green Energy and Technology; Vol. 66).

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

Kim, BJ, Kasada, R, Kimura, A & Tanigawa, H 2011, Specimen size effects on fracture toughness of F82H steel for fusion blanket structural material. in Zero-Carbon Energy Kyoto 2010: Proceedings of the Second International Symposium of Global COE Program "Energy Science in the Age of Global Warming-Toward CO2 Zero-emission Energy System". Green Energy and Technology, vol. 66, Springer Verlag, pp. 286-291. https://doi.org/10.1007/978-4-431-53910-0_38

Kim BJ, Kasada R, Kimura A, Tanigawa H. Specimen size effects on fracture toughness of F82H steel for fusion blanket structural material. In Zero-Carbon Energy Kyoto 2010: Proceedings of the Second International Symposium of Global COE Program "Energy Science in the Age of Global Warming-Toward CO2 Zero-emission Energy System". Springer Verlag. 2011. p. 286-291. (Green Energy and Technology). doi: 10.1007/978-4-431-53910-0_38

Kim, Byung Jun ; Kasada, Ryuta ; Kimura, Akihiko et al. / Specimen size effects on fracture toughness of F82H steel for fusion blanket structural material. Zero-Carbon Energy Kyoto 2010: Proceedings of the Second International Symposium of Global COE Program "Energy Science in the Age of Global Warming-Toward CO2 Zero-emission Energy System". Springer Verlag, 2011. pp. 286-291 (Green Energy and Technology).

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abstract = "Fusion energy has been considered to contribute to reducing emission of carbon dioxide effectively. Understanding and evaluating the fracture toughness behavior of neutron-irradiated reduced-activation ferritic (RAF) steels are essential in the design and operation of fusion reactor. In order to produce an enough database of irradiation effects on materials, the reduction of the specimen volume is required to acquire an enough number of data points. In the ITER Broader Approach (BA) project, applicability of small specimen test techniques (SSTT) has been examined to evaluate irradiation-induced degradation of fracture toughness of F82H steel. The master curve method, which was provided by the American Society for Testing and Materials (ASTM), is specified as a standard test method for determination of reference temperature for ferritic steels in the transition range. Fracture toughness tests were carried out for F82H steel in order to evaluate the effects of specimen size on the shift of transition curve using the various sizes of specimens (1 CT, 1/2 CT and 1/4 CT). The master curve approach was made for evaluation of fracture toughness of F82H with subsized specimens with constraint loss by referring to the ASTM E1921. Small specimen tests can be applicable to evaluate the fracture toughness of F82H steel with no substantial effect of specimen size.",

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Specimen size effects on fracture toughness of F82H steel for fusion blanket structural material

Abstract

Publication series

Keywords

ASJC Scopus subject areas

UN SDGs

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