| 热轧工艺对65Mn钢显微组织及力学性能的影响 |
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| 引用本文： | 杨莹莹,吴红艳,齐敏,杜林秀.热轧工艺对65Mn钢显微组织及力学性能的影响[J].金属热处理,2021,46(12):218-222. |
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| 作者姓名： | 杨莹莹 吴红艳 齐敏 杜林秀 |
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| 作者单位： | 东北大学 轧制技术及连轧自动化国家重点实验室, 辽宁 沈阳 110819 |
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| 摘 要： | 研究了热轧工艺对65Mn钢组织与性能的影响。采用电子探针显微分析仪(EPMA)和透射电镜(TEM)对热轧组织进行了表征。结果表明:通过控制热轧工艺,可获得珠光体和贝氏体两种初始组织。随着终轧温度和终冷温度的降低,先共析铁素体含量和珠光体体片层间距逐渐减小,强度、硬度逐渐升高。相比珠光体组织,热轧贝氏体组织具有更高的强度,抗拉和屈服强度分别为943 MPa 和648 MPa。
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| 关 键 词： | 65Mn钢 热轧工艺 珠光体 片层间距 性能 |
| 收稿时间： | 2021-08-04 |
Effect of hot rolling on microstructure and properties of 65Mn steel |
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| Yang Yingying,Wu Hongyan,Qi Min,Du Linxiu.Effect of hot rolling on microstructure and properties of 65Mn steel[J].Heat Treatment of Metals,2021,46(12):218-222. |
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| Authors: | Yang Yingying Wu Hongyan Qi Min Du Linxiu |
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| Affiliation: | State Key Lab of Rolling and Automation, Northeastern University, Shenyang Liaoning 110819, China |
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| Abstract: | Effect of hot rolling process on microstructure and mechanical properties of 65Mn steel was experimentally studied. Electron probe microanalyzer (EPMA) and transmission electron microscope (TEM) were used to characterize the hot-rolled microstructure. The results show that two initial structures of pearlite and bainite can be obtained by controlling the hot rolling process. With the decrease of final cooling temperature and final rolling temperature, the proeutectoid ferrite content and pearlite interlamellar spacing gradually decrease, and the strength and hardness gradually increase. Compared with pearlite, hot-rolled bainite has higher strength, with tensile and yield strengths of 943 MPa and 648 MPa, respectively. |
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| Keywords: | 65Mn steel hot rolling process pearlite interlamellar spacing mechanical properties |
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