Clarification of creep mechanism of dual phase 9Cr-ODS steel as a composite material

Sakasegawa, Hideo ; Otsuka, Satoshi ; Ukai, Shigeharu ; Tanigawa, Hiroyasu; Ogiwara, Hiroyuki*; Tamura, Manabu*; Koyama, Akira*; Fujiwara, Masayuki*

Clarifying creep mehcanism of 9Cr-ODS(9Cr-2W-0.2Ti-Y203) steels to be applied for cladding materials in fast breeder reactors are performed in order to improve mass production material processing procedures and the method of creep life prediction. Conventional studies on microstructures in 9Cr-ODS steels revealed that superior creep properties were due to the dual phase structure, delta-ferrite and tempered martensite. Delta ferrite has very fine oxide particles dispersed in the matrix. In this study, the role of delta-ferrite dual phase 9Cr-ODS steel creep mechanism as a compsite material were studied.

Language	:	Japanese
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Meeting title	:	日本金属学会2006年春期(第138回)大会
Held date	:	2006/03
Location (city)	:	東京
Location (country)	:	日本
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Keywords	:	no keyword
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Registration No. : BB20051397
JAEA Abstracts No. :
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