| 回火温度对00Cr13Ni5Mo超级马氏体不锈钢组织及性能的影响 |
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| 引用本文： | 李照国,王珂,纪显彬,徐斌,魏海霞.回火温度对00Cr13Ni5Mo超级马氏体不锈钢组织及性能的影响[J].金属热处理,2021,46(5):95-98. |
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| 作者姓名： | 李照国 王珂 纪显彬 徐斌 魏海霞 |
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| 作者单位： | 酒钢集团宏兴钢铁股份有限公司 钢铁研究院不锈钢研究所, 甘肃 嘉峪关 735100 |
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| 摘 要： | 研究了1050 ℃正火+550～700 ℃回火处理对00Cr13Ni5Mo超级马氏体不锈钢中厚板显微组织和力学性能的影响。结果表明,在1050 ℃正火后,随着回火温度的升高,板条状马氏体逐步分解,产生了逆变奥氏体组织,600 ℃回火时其含量最高,之后随着温度的升高逆变奥氏体的含量逐步降低;试验钢的强度、硬度及屈强比均随回火温度的升高先降低后升高。650 ℃回火时,可得到细密的回火索氏体+逆变奥氏体的复相组织,试验钢具有较低的屈强比及良好的冲击性能。
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| 关 键 词： | 超级马氏体不锈钢 逆变奥氏体 正火 回火 显微组织 力学性能 |
| 收稿时间： | 2020-10-17 |
Effect of tempering temperature on microstructure and properties of 00Cr13Ni5Mo super martensitic stainless steel |
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| Li Zhaoguo,Wang Ke,Ji Xianbin,Xu Bin,Wei Haixia.Effect of tempering temperature on microstructure and properties of 00Cr13Ni5Mo super martensitic stainless steel[J].Heat Treatment of Metals,2021,46(5):95-98. |
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| Authors: | Li Zhaoguo Wang Ke Ji Xianbin Xu Bin Wei Haixia |
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| Affiliation: | Stainless Steel Research Institute of Hong Xing Iron & Steel Co., Ltd., JISCO, Jiayuguan Gansu 735100, China |
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| Abstract: | Effect of 1050 ℃ normalizing+550-700 ℃ tempering treatment on microstructure and mechanical properties of the 00Cr13Ni5Mo super martensitic stainless steel plate was studied. The results show that after normalization at 1050 ℃ and with the increase of subsequent tempering temperature, the lath martensite gradually decomposes and produces reversed austenite. When tempered at 600 ℃, the content of reversed martensite is the highest, and then gradually decreases with the increase of tempering temperature. And the strength, hardness and yield ratio of the tested steel decrease first and then increase with the increase of tempering temperature. When tempered at 650 ℃, a complex phase microstructure containing fine tempered sorbite and reversed austenite can be obtained, and the tested steel has lower yield ratio and good impact property. |
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| Keywords: | super martensitic stainless steel reversed austenite normalizing tempering microstructure mechanical properties |
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