| 热处理工艺对5mm 9Ni钢板性能的影响 |
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| 引用本文： | 于雄,徐伟,刘洋.热处理工艺对5mm 9Ni钢板性能的影响[J].特殊钢,2021,42(2):72-74. |
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| 作者姓名： | 于雄 徐伟 刘洋 |
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| 作者单位： | 江阴兴澄特种钢铁有限公司研究院，江阴214429 |
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| 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。
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| 收稿时间： | 2020-09-09 |
Effect of Heat Treatment Process on Properties of 9Ni Steel 5 mm Plate |
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| Yu Xiong,Xu Wei,Liu Yang.Effect of Heat Treatment Process on Properties of 9Ni Steel 5 mm Plate[J].Special Steel,2021,42(2):72-74. |
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| Authors: | Yu Xiong Xu Wei Liu Yang |
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| Affiliation: | Research Institute,Jiangyin Xingcheng Special Steel Work Co Ltd, Jiangyin 214429 |
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| 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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| Keywords: | 5mm 9Ni Steel Plate Reverse Austenite - 196 °C Charpy Absorption Energy |
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