Notch toughness evaluation of diffusion-bonded joint of alumina dispersion-strengthened copper to stainless steel

Nishi, Hiroshi

Fusion Engineering and Design, 81(1-7), p.269 - 274, 2006/02

https://doi.org/10.1016/j.fusengdes.2005.07.011

Tensile strength of the diffusion bonded joint was as large as that of Alumina dispersion-strengthened copper (DS Cu), however, the Charpy absorbed energy of the joint was considerably lower than that of DS Cu. Instrumented Charpy impact test and slow-bend Charpy test of diffusion bonded joints were performed to clarify the degradation of Charpy absorbed energy. Elasto-plastic analyses were also carried out in order to study the deformation behavior of the tensile and V-notched specimens for joints. As the results, the fracture behaviors of the impact and slow-bend tests were almost the same. Elasto-plastic analyses showed that the maximum strain occurred at the DS Cu apart from the interface for tensile specimen, however, the strain concentrated at the DS Cu near the interface for the notched specimen. This strain concentration arose from the mechanical heterogeneity between stainless steel and DS Cu in the bonded zone and attributed to the degradation of the absorbed energy of the joints.

Results and analysis of the ASTM round robin on reconstitution

Onizawa, Kunio; Van Walle, E.*; Pavirich, W.*; Nanstad, R.*

NUREG/CR-6777, 81 Pages, 2002/08

no abstracts in English

Comparison of transition temperature shifts between static fracture toughness and Charpy-V impact properties due to irradiation and post-irradiation annealing for Japanese A533B-1 steels

Onizawa, Kunio; Suzuki, Masahide

Effects of Radiation on Materials: 20th International Symposium (ASTM STP 1405), p.79 - 96, 2001/07

no abstracts in English

Effect of irradiation on fracture toughness in the transition range of RPV steels

Onizawa, Kunio; Tobita, Toru; Suzuki, Masahide

Effects of Radiation on Materials (ASTM STP 1366), p.204 - 219, 2000/00

no abstracts in English

Nondestructive evaluation for characterizing neutron irradiation embrittlement of materials by using ultrasonic technique

; Ooka, Norikazu; Kobayashi, Hideo*

Proc. of 2nd Japan-US Symp. on Advances in NDT, p.151 - 156, 1999/00

no abstracts in English

Diffusion bonding of alumina dispersion-strengthened copper to 316 stainless steel with interlayer metals

Nishi, Hiroshi; Araki, Toshimitsu*; Eto, Motokuni

Fusion Engineering and Design, 39-40, p.505 - 511, 1998/00

https://doi.org/10.1016/S0920-3796(98)00233-6

no abstracts in English

Neutron-irradiation effects on charpy impact and tensile properties of low-and high-purity Fe-9Cr alloys

Hishinuma, Akimichi; Wakai, Eiichi; Takaki, Seiichi*; Abiko, Kenji*

Proc. of Int. Conf. on Ultra-high purity base metals (UHPM-98), p.27 - 33, 1998/00

no abstracts in English

Charpy impact properties of diffusion bonded joints of alumina dispersion strengthered copper to 316 stainless steel

Nishi, Hiroshi; ; Eto, Motokuni

Transactions of 14th Int. Conf. on Stuructural Mechanics in Reactor Technol. (SMiRT-14), 4, p.455 - 462, 1997/00

no abstracts in English

Development of reconstitution technique of irradiated specimen, II; Annual report for FY1994 on JAERI-IHI cooperated research program

Nishiyama, Yutaka; Fukaya, Kiyoshi; Onizawa, Kunio; Suzuki, Masahide; Shibata, Katsuyuki; *; *; *; *

JAERI-Tech 96-003, 30 Pages, 1996/02

JAERI-Tech-96-003.pdf:1.55MB

no abstracts in English

Surface-activated joining,reconstitution technique of surveillance specimens

*; Nishiyama, Yutaka

Genshiryoku Kogyo, 42(9), p.26 - 29, 1996/00

http://ci.nii.ac.jp/naid/40001074534

no abstracts in English