| 硅含量对低碳钢连续冷却中转变组织的影响 |
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| 引用本文： | 秦利国,乔孟平,蔡明晖.硅含量对低碳钢连续冷却中转变组织的影响[J].山东冶金,2009,31(3):41-43. |
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| 作者姓名： | 秦利国 乔孟平 蔡明晖 |
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| 作者单位： | 1. 济钢集团有限公司,山东,济南,250101
2. 东北大学,材料与冶金学院,辽宁,沈阳,110004 |
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| 摘 要： | 通过热模拟压缩实验，对C、Mn含量基本相同，w（Si）对低碳钢在850℃变形后、以30℃/s冷却到室温时的组织演变的影响。结果表明：w（Si）由O．50％增加到0．99％时，硅的增加促进了先共析铁索体的形成，而w（Si）由0．99％增加到1．41％时，硅的增加促进了粒状贝氏体的形成。同时Si对组织中先共析铁素体的晶粒尺寸以及体积分数的变化也有一定的影响。
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| 关 键 词： | 硅含量 低碳钢 组织演变 粒状贝氏体 |
Effect of Silicon Content on Microstructure Evolution of Low Carbon Steels during Continuous Cooling |
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| QIN Li-guo,QIAO Meng-ping,CAI Ming-hui.Effect of Silicon Content on Microstructure Evolution of Low Carbon Steels during Continuous Cooling[J].Shandong Metallurgy,2009,31(3):41-43. |
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| Authors: | QIN Li-guo QIAO Meng-ping CAI Ming-hui |
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| Affiliation: | 1 Jinan Iron and Steel Group Corporation;Jinan 250101;China;2 School of Materials and Metallurgy;Northeastern University;Shenyang 110004;China |
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| Abstract: | The influence of Si contents on microstructure evolution behavior of deformed austenite during continuous cooling in low carbon steels by means of hot compression simulation. The results showed that Si promotes the formation of proeutectoid ferrite as increasing Si content from 0.50% to 0.99%; Si stimulates the formation of granular bainite with the increase of Si content from 0.99% to 1.41%. Meanwhile, Si has an effect on the ferrite grain size and volume fraction of proeutectoid ferrite. |
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| Keywords: | Si content low carbon steel microstructure evolution granular bainite |
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