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급냉 연속 주조된 페라이트 스테인레스강 판재의 조직 및 인장성질에 미치는 Cr 함량의 영향
오명석,전병완,이태행,조성석 ( Myeong Suck Oh,Byeong Whan Jeon,Tae Haeng Lee,Seong Seock Gho ) 한국주조공학회 1988 한국주조공학회지 Vol.8 No.1
Using the twin-roller type melt-quenching technique, we investigated the effect of Cr content on the microstructure and tensile properties of ferritic stainless steels, whose thickness is 0.5㎜ has been investigated. In this experiment, the three kinds of ferritic stainless steels has been used. The predicted cooling rates of melt-quenched ferritic stainless steels were not changed, even the Cr content increases up, to 25%. The metastable phase of the melt-quenched ferritic stainless steels were changed depending upon the car Cr content. In case of 17% Cr steel, the metastable phase was martensite and in case of 20 and 25% Cr steel, the metastable phase was austenite. After heat treatment, the tensile properties of the melt-quenched stainless steels are better than those of conventional ferritic stainless steels.