王超, 赵刚, 蔡国庆, et al. Features of Continuous Cooling Transformation (CCT) of High Carbon Steel 72A for Tyre Core Wire[J]. Special Steel, 2008, 29(5): 13-15.
王超, 赵刚, 蔡国庆, et al. Features of Continuous Cooling Transformation (CCT) of High Carbon Steel 72A for Tyre Core Wire[J]. Special Steel, 2008, 29(5): 13-15.DOI:
The continuous cooling transformation (CCT) curves of high carbon steel 72A (0.72C
0.53Mn
0.22Si) for tyre core wire has been measured by THERMECMASTOR-Z thermal simulation machine using thermal dilatation method
and the effect of start cooling temperature(840~930℃)and cooling rate(0.8~22 ℃/s)on structure of steel has been analyzed. Results showed that at same start cooling temperature
with increasing cooling rate
the phase transformation period decreased;at same cooling rate
with increasing start cooling temperature
the time reaching the start and end of phase transformation increased; Increasing start cooling temperature was available to increase pearlite percentage content and decrease interlamellar spacing and enhance mechanical properties of wire.