Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403


한국표면공학회지 (14권3호 142-150)

Study on Prevention of Quench Crack in Martensitic High Carbon Tool Steel

고탄소 연구강의 잠입귀열 방지에 관한 연구


연세대학교 대학원;두산조직주식회사;연세대학교 공과대학;
연세대학교 대학원;두산조직주식회사;연세대학교 공과대학;


The present paper clarified mechanism of quench crack formation in high carbon steel dur-ing quenching, and, in order to prevent the quench crack, proposed two basic guides in alloy design of high carbon tool steel. They are to raise Ms temperature of high carbon tool steel by addition of alloying elemen-ts such as Al and Co, and to decrease grain size of the carbon tool steel by addition of alloying elements of Al, B, Ti, Zr, and V, and by grain-refining heat treatment.