The Characterization of copper alloys for the application of fusion reactors

Ishiyama, Shintaro; Fukaya, Kiyoshi; Eto, Motokuni; Akiba, Masato

Fitness-For-Service and Dicisions for Petroleum and Chemical Equipment (PVP-Vol. 315), 6 Pages, 1995/00

no abstracts in English

None

Kimura, Hidetaka; *; *; Kawasaki, Hirotsugu; Aoto, Kazumi;

PNC TN9450 91-003, 28 Pages, 1991/03

PNC-TN9450-91-003.pdf:0.65MB

None

An Attempt of improve corrosion and fatigue resistance of Ni-Cr-W superalloys in HTGR helium

Tsuji, Hirokazu; Tsukada, Takashi; Nakajima, Hajime

Journal of Nuclear Materials, 168, p.201 - 207, 1989/00

https://doi.org/10.1016/0022-3115(89)90586-2

no abstracts in English

Development of an Apparatus for Testing Fatique of Metals at Elevated Temperatures in Controlled Environments

; Kondo, Tatsuo

JAERI-M 82-082, 23 Pages, 1982/07

JAERI-M-82-082.pdf:1.07MB

no abstracts in English

Dynamic recovery and recrystallization behavior caused by fatigue for sintered molybdenum

Nishi, Hiroshi; Enoeda, Mikio; Kawamura, Yoshinori

no journal, , 

Powder metallurgy molybdenum and tungsten received severe hot roll reduction after the sintering to reduce the internal defects such as voids. Hence these metals have high stored energy and show unstable microstructures. The molybdenum exhibits cyclic softening being caused dynamic recovery and recrystallization during high temperatures fatigue below its static recrystallization temperature. In this investigation, the observations of microstructures change during high temperatures fatigue are performed and compare to those of static recrystallization. Moreover, the apparent activation energy of the cyclic softening is evaluated to study the mechanisms of the dynamic recovery and recrystallization. The apparent activation energy of the cyclic softening is extremely lower than that of lattice diffusion of molybdenum and the activation energy of lattice diffusion is reduced during high temperatures fatigue.