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

成慧梅; 冯俊鹏; 孙电强; 葛阳阳; 王丽敏

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

更新时间：2026-01-21

- Effect of Quenching-Tempering Process on Microstructure and Properties of Micro-Alloying Q960E Steel 70 mm Thickness Plate
- Special Steel Vol. 43, Issue 5, Pages: 78-81(2022)
- 作者机构：
  
  河钢股份有限公司邯郸分公司技术中心,邯郸,056000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：22 April 2022，
  
  Online First：29 September 2022，
  
  Published：29 September 2022
- 稿件说明：
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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：

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：

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℃KV

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。

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 KV

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.

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