赵磊, 刘宪民, 雍岐龙, et al. Effect of Heat Treatment on Structure and Properties of Low Alloying Ultra-high Strength Steel DT300[J]. Special Steel, 2007, 28(2): 29-30.
赵磊, 刘宪民, 雍岐龙, et al. Effect of Heat Treatment on Structure and Properties of Low Alloying Ultra-high Strength Steel DT300[J]. Special Steel, 2007, 28(2): 29-30.DOI:
Martensite transformation and s- carbide precipitation in the steel DT300 -0.33C
1.78Si
0.76Mn
5.78Ni
1. 10Cr
0.65Mo
0. 12V oil quenched at 840~960 ℃ and effect of quenching temperature on mechanical properties of 300 ℃ tempered steel have been tested and analyzed. Results showed that complete lath martensite and excellent strength-toughness of steel DT300 were obtained by 860~920 ℃1 h oil cooling + 300 ℃ 2 h tempering. The mechanical properties of heat-treated steel were Rm 1860 MPa