Evaluation on fracture toughness of low activation ferritic steel (JLF-1)

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Yoon, H.K.^{a; *} | Lee, S.P.^a | Seok, C.S.^b | Kohyama, A.^c

Affiliations: [a] Department of Mechanical Engineering, Dong-Eui University, 24, Kaya Dong, PusanJin-Ku, Pusan, 614-714, Korea | [b] Department of Mechanical Engineering, SungKyunKwan University, Suwon, 440-330, Korea | [c] Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan

Correspondence: [*] Corresponding author: H.K. Yoon, Department of Mechanical Engineering, Dong-Eui University, 24, Kaya Dong, Busanjin-Ku, Busan, 614-714, Korea; Tel.: +82 51 890 1642; Fax: +82 51 890 2232; E-mail: hkyoon@dongeui.ac.kr

Abstract: Low activation ferritic steels have been developed for a candidate of structural materials in nuclear fusion reactor applications. This paper dealt with the effects of rolling direction and side groove on the fracture toughness of low activation ferritic steel, JLF-1 Steel (9Cr-2W-V-Ta). The fracture toughness of JLF-1 steel showed the anisotropy in the rolling direction. In the case of J-R curve, J_{Q} and slope of the longitudinal JLF-1 steel (BML) for the rolling direction were a slight larger than those of transverse JLF-1 Steel (BMT) at room temperature. In order to obtain the valid fracture toughness of JLF-1 Steel through the UC method, the CT specimen with a side groove of 40% was recommended.

DOI: 10.3233/JAE-2002-491

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 13, no. 1-4, pp. 359-364, 2002