成慧梅, 冯俊鹏, 孙电强, et al. Effect of Quenching-Tempering Process on Microstructure and Properties of Micro-Alloying Q960E Steel 70 mm Thickness Plate[J]. Special Steel, 2022, 43(5): 78-81.
成慧梅, 冯俊鹏, 孙电强, et al. Effect of Quenching-Tempering Process on Microstructure and Properties of Micro-Alloying Q960E Steel 70 mm Thickness Plate[J]. Special Steel, 2022, 43(5): 78-81.DOI:
The properties of Q960E steel 70 mm plate quenched at 890-920
°C
and tempered at 560-600 °C are tested
and the microstructure of Q960E steel is analyzed by metallographic microscope (OM) and scanning electron microscope (SEM) . The results show that the strength toughness matching of the steel plate is the best when quenching at 920 ℃ and tempering at 560 °C (UTS 1 048 MPa
YS 1 005 MPa
e1.14% and -40 °C KV
2
52-61 J)
the performance distribution of the steel plate in the full thickness direction is relatively uniform
and the hardness value is 27.5-33HRC
the microstructure from the surface to the center is tempered sorbite and residual austenite.