| Title |
Research Paper - Solidification - : Microstructure and Mechanical Properties of Fe - 15Cr - 5V - X%C Alloys with various Carbon Content |
| Authors |
조규섭(Gue Serb Cho); 김창섭(Chang Seob Kim); 오규환(Kyu Hwan Oh); 나형용(Hyung Yong Ra); 이희춘(Hui 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. |