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 ›› 2021, Vol. 42 ›› Issue (2): 72-74.

• 组织和性能 • 上一篇    下一篇

热处理工艺对5mm 9Ni钢板性能的影响

于雄,徐伟,刘洋   

  1. 江阴兴澄特种钢铁有限公司研究院,江阴214429
  • 收稿日期:2020-09-09 出版日期:2021-04-01 发布日期:2022-04-18

Effect of Heat Treatment Process on Properties of 9Ni Steel 5 mm Plate 

Yu Xiong, Xu Wei, Liu Yang   

  1. Research Institute,Jiangyin Xingcheng Special Steel Work Co Ltd, Jiangyin 214429
  • Received:2020-09-09 Published:2021-04-01 Online:2022-04-18

摘要: 研究了淬火+亚温淬火+回火(QLT)、淬火+回火(QT)、正火+正火+回火(NNT)3种工艺对5mm 9Ni钢板低温韧性的影响。结果表明,采用NNT工艺,钢板低温韧性良好,逆变奥氏体含量8.0%;通过工艺试制,5mm 9Ni钢板,采用3.3 mm厚度规格试样, -196℃冲击吸收能量≥40 J;采用2.5 mm厚度规格试样,-196℃冲击吸收能量≥27 J。

关键词: 5mm 9Ni钢板, 逆变奥氏体,  , -196℃冲击吸收能量

Abstract: The effect of three kinds of process quenching + lamellarizing ( quenching from intercritical temperature) + tempering (QLT) , quenching + tempering( QT) , double normalizing + tempering ( NNT) on low temperature toughness of 5 mm 9Ni steel plate has been studied. The results show that the steel plate with NNT has good ductility at low temperature ,good plate shape and 8. 0% reverse austenite content by using double normalizing and tempering process. Through industrial trial production, the -196 ℃ charpy absorption energy of 5 mm 9Ni steel plate with 3. 3 mm thickness specimen is 40 J; and that with the 2. 5 mm thickness specimen is m27 J.

Key words:  , 5mm 9Ni Steel Plate, Reverse Austenite, - 196 °C Charpy Absorption Energy ,