| 70kg级低碳贝氏体钢相变规律研究 |
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| 引用本文： | 刘金泉,田世永,夏佃秀.70kg级低碳贝氏体钢相变规律研究[J].山东冶金,2011(6):33-35. |
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| 作者姓名： | 刘金泉 田世永 夏佃秀 |
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| 作者单位： | 济钢集团有限公司技术中心; |
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| 摘 要： | 利用MMS-200热模拟试验机和光学显微镜研究了70kg级低碳贝氏体钢板在不同终轧温度和冷却速度下的相变规律。结果表明,随冷却速度的增大,钢中依次出现多边形铁素体、珠光体、针状铁素体、粒状贝氏体、下贝氏体和马氏体组织,奥氏体向铁素体相变温度Ar3降低,晶粒细化。随着终轧温度的降低,铁素体诱导相变明显增加,铁素体晶粒细化。
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| 关 键 词： | 低碳贝氏体钢 冷却速度 终轧温度 形变诱导铁素体相变 |
Study on Phase Transformation Behaviors of 70 kg Grade Low Carbon Bainitic Steel |
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| LIU Jin-quan,TIAN Shi-yong,XIA Dian-xiu.Study on Phase Transformation Behaviors of 70 kg Grade Low Carbon Bainitic Steel[J].Shandong Metallurgy,2011(6):33-35. |
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| Authors: | LIU Jin-quan TIAN Shi-yong XIA Dian-xiu |
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| Affiliation: | LIU Jin-quan,TIAN Shi-yong,XIA Dian-xiu (The Technology Center of Jinan Iron and Steel Group Corporation,Jinan 250101,China) |
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| Abstract: | The continuous cooling transformation behaviors of 70 kg grade low carbon bainitic steel at different finishing temperature and cooling rate were studied by using MMS-200 thermomechanical simulator and optical metalloscope. The results showed that with the increase of cooling rate, the structure evolution in turns was polygonal ferrite, pearlite, acicular ferrite, granular bainite, lath bainite and martensite, ferrite transformation temperature (Ar3) decreased and the grain size was refined. Decreasing fini... |
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| Keywords: | low carbon bainitic steel cooling rate finishing temperature strain induced ferrite transformation |
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