ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2022, Vol. 43 ›› Issue (5): 78-81.

所属专题: 钢板

• • 上一篇    下一篇

调质处理工艺对微合金化Q960E钢70 mm板组织性能的影响

成慧梅,冯俊鹏,孙电强,葛阳阳,王丽敏   

  1. 河钢股份有限公司邯郸分公司技术中心,邯郸 056000
  • 收稿日期:2022-04-22 出版日期:2022-10-01 发布日期:2022-09-29
  • 作者简介:成慧梅(1980-),女,硕士,高级工程师

Effect of Quenching-Tempering Process on Microstructure and Properties of Micro-Alloying Q960E Steel 70 mm Thickness Plate

Cheng Huimei , Feng Junpeng , Sun Dianqiang , Ge Yangyang , Wang Limi   

  1. Hesteel Company Limited Handan Branch Technology Center, Handan 056000
  • Received:2022-04-22 Published:2022-10-01 Online:2022-09-29

摘要: 采用890~920℃淬火和560~600℃回火工艺对Q960E钢70 mm板进行性能测试,并利用金相显微镜(OM)、扫描电镜(SEM)对Q960E钢板显微组织进行分析。结果表明:采用920℃淬火和560℃回火工艺的钢板强韧性匹配最优(UTS 1048 MPa, YS 1005 MPa, el.14%,-40℃KV2 52~61 J),钢板全厚度方向性能分布相对均匀,硬度值为27.5~33HRC;组织从表面至心部为回火索氏体和残余奥氏体。

关键词: Q960E钢;, 70 mm板, 调质, 组织, 性能

Abstract: 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 KV2 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.

Key words: Q960E Steel, 70 mm Thickness Plate, Quenching-Tempering, Microstructure, Properties