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

于雄; 徐伟; 刘洋

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

更新时间：2026-01-21

- Effect of Heat Treatment Process on Properties of 9Ni Steel 5 mm Plate
- Special Steel Vol. 42, Issue 2, Pages: 72-74(2021)
- 作者机构：
  
  江阴兴澄特种钢铁有限公司研究院，江阴,214429
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：09 September 2020，
  
  Online First：18 April 2022，
  
  Published：18 April 2021
- 稿件说明：
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于雄, 徐伟, 刘洋. Effect of Heat Treatment Process on Properties of 9Ni Steel 5 mm Plate[J]. Special Steel, 2021, 42(2): 72-74.
DOI：

于雄, 徐伟, 刘洋. Effect of Heat Treatment Process on Properties of 9Ni Steel 5 mm Plate[J]. Special Steel, 2021, 42(2): 72-74. DOI：

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。

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.

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