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/TiC coatingHirohata, Yuko*; Motojima, Dai*; Hino, Tomoaki*; Sengoku, Seio
Journal of Nuclear Materials, 313-316(1-3), p.172 - 176, 2003/03
Times Cited Count：13 Percentile：64.64(Materials Science, Multidisciplinary)Titanium oxide film was coated on entire surface of a V-4Cr-4Ti alloy to reduce hydrogen absorption at low temperature region. The film consisted with a mixture of TiO2 and TiC. The content of TiO was approximately 80%. The hydrogen absorption rate of Ti-oxide coated V-alloy largely decreased with increase of the film thickness. In the case of the film with a thickness of 0.5 micron, the absorption rate was fifty times smaller than that of non-coated V-alloy at the absorption temperature of 573 K.
Motooka, Takafumi; Kiuchi, Kiyoshi
Materials Transactions, 43(5), p.1220 - 1224, 2002/05
Times Cited Count：2 Percentile：23.92(Materials Science, Multidisciplinary)Refractory materials such as zirconium, niobium and titanium alloys with excellent corrosion resistance in boiling nitric acid have been selected for use as structural materials of spent fuel reprocessing equipment. The fatigue crack growth rates of these materials were investigated by load control tests as a function of the stress intensity factor range in boiling 3N nitric acid and in air at room temperature. The fracture surfaces were observed by SEM. The fatigue crack growth rates of zirconium and niobium were enhanced in boiling nitric acid compared with those in air at room temperature. Acceleration effect due to corrosion fatigue was not observed in the crack growth of Ti-5Ta alloy. The fracture surfaces of Ti-5Ta alloy showed the ductile striation in both environments. On the other hand, the fracture surfaces of niobium represented the fatigue striation in air and the brittle striation due to corrosion in nitric acid. The fracture surfaces of zirconium in nitric acid showed brittle fracture and the ductile fracture related to stress corrosion cracking.
Hoshiya, Taiji; ; Omi, Masao; Goto, Ichiro; Ando, Hiroei
Nihon Kinzoku Gakkai-Shi, 56(5), p.502 - 508, 1992/00
no abstracts in English
Hoshiya, Taiji; *; Ando, Hiroei
Nihon Kinzoku Gakkai-Shi, 56(7), p.741 - 746, 1992/00
no abstracts in English
Hoshiya, Taiji; *; Katsuta, Hiroji; Ando, Hiroei
Nihon Kinzoku Gakkai-Shi, 56(7), p.747 - 756, 1992/00
no abstracts in English
Hoshiya, Taiji; *; ; Takamura, Saburo;
Nihon Kinzoku Gakkai-Shi, 55(10), p.1054 - 1062, 1991/10
no abstracts in English
