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신선가공 고탄소 강선에서의 시효현상과 딜라미네이션 발생간의 상관관계 고찰
이중원(J. W. Lee),이종철(J. C. Lee),강의구(U. G. Gang),이용신(Y. S. Lee),박경태(K. T. Park),남원종(W. J. Nam) 한국소성가공학회 2009 한국소성가공학회 학술대회 논문집 Vol.2009 No.5
The effects of annealing temperature and time on mechanical properties and microstructures were already investigated in cold drawn pearlitic steel wires. During annealing, the increment of the tensile strength at low temperatures found to be due to age hardening, while the decrease in the tensile strength at high temperatures was attributed to age softening, involving the spheroidization of lamellar cementite and recovery of lamellar ferrite. Since Between increase of tensile strength and the occurrence of the delamination would be closely related to the dissolution of cementite, the increase of drawing strain by lower annealing temperature caused the between higher tensile strength and the easier occurrence of the delamination in cold drawn pearlitic steel wires.