발간논문

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Vol.34, No.12, 1608 ~ 1618, 1996
Title
Research Paper - Solidification - : Microstructure and Mechanical Properties of Fe - 15Cr - 5V - X%C Alloys with various Carbon Content
조규섭Gue Serb Cho, 김창섭Chang Seob Kim, 오규환Kyu Hwan Oh, 나형용Hyung Yong Ra, 이희춘Hui Choon Lee
Abstract
Fe-15Cr-5V-X%C(X=0.75, 1.2 and 2.3) alloys have been poured into sand mold, and quenched interruptly to study the solidification process and microstructures varied with carbon content. Solidified structures of Fe-15Cr-5V-X%C alloys were made of α-ferrite +MC+M_7C₃ in 0.75%C, α-ferrite+MC+M_(23)C_6+M_7C₃ in 1.2%C and α+MC+M_7C₃ in 2.3%C alloy. Hardness increased with increasing carbon content and wear resistance was dependent on the existance of eutectic M_7C₃ carbide. Eutectic was the most brittle structure in the solidified structures and primary phase supported the strength of Fe-15Cr-5V-X%C alloys.
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