611 2相ステンレス鋳鋼の低温脆性破壊(OS4-(3)オーガナイズドセッション《材料と組織》)

概要

論文の詳細を見る
Ductile to brittle transition (DBT) behavior in two cast duplex stainless steels was investigated; one prepared from a real large -scaled product and the other from small-sized test sample. DBT temperature was higher in the latter specimen than the former specimen. SEM/EBSD observations of the fracture surface and the cross-sectioned plane reveal that microstructure difference brings different fraction of cleavage fracture of ferrite phase. That is, the small-sized test specimen fractures mostly along ferrite cleavage plane, while the specimen prepared from the real product fractures along both ferrite and austenite grains.
一般社団法人日本機械学会の論文
2011-08-26