| 稀土对中碳铬钼钢组织及低温韧性的影响 |
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| 引用本文： | 姜海龙,姚小乐,贺景春.稀土对中碳铬钼钢组织及低温韧性的影响[J].包钢科技,2012,38(2):31-33. |
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| 作者姓名： | 姜海龙 姚小乐 贺景春 |
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| 作者单位： | 内蒙古包钢钢联股份有限公司技术中心,内蒙古包头,104010;内蒙古包钢钢联股份有限公司技术中心,内蒙古包头,104010;内蒙古包钢钢联股份有限公司技术中心,内蒙古包头,104010 |
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| 摘 要： | 测定了稀土对中碳铬钼钢的横向低温冲击的影响,通过观察不同稀土含量的钢的夹杂物形貌及奥氏体晶界,研究了稀土对中碳铬钼钢夹杂物形成的影响。研究发现：中碳铬钼钢加入少量稀土通过夹杂物变形、奥氏体晶粒细化,能够提高横向冲击韧性。
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| 关 键 词： | 稀土 低温冲击 夹杂物 奥氏体晶粒 |
Effects of RE on Structures and Low-temperature Ductility of Cr-Mo Steel with Medium Carbon |
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| JIANG Hai-long
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YAO Xiao-le
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HE Jing-chun.Effects of RE on Structures and Low-temperature Ductility of Cr-Mo Steel with Medium Carbon[J].Science & Technology of Baotou Steel(Group) Corporation,2012,38(2):31-33. |
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| Authors: | JIANG Hai-long YAO Xiao-le HE Jing-chun |
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| Affiliation: | (Technical Center of Steel Union Co.Ltd.of Baotou Steel(Group)Corp.,Baotou 014010,Nei Monggol,China) |
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| Abstract: | The effects of rare earth on transverse low-temperature impact of Cr-Mo steel with medium carbon are determined.The effects of rare earth on formation of inclusions in the Cr-Mo steel with medium carbon are studied through observing the appearances of inclusions and the grain boundary of austenite in the steel with different contents of rare earth.The results show that the transverse impact toughness could be improved through the deformation of inclusions and refinement of austenite crystals by adding a small amount of rare earth into Cr-Mo steel with medium carbon. |
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| Keywords: | rare earth low-temperature impact inclusions austenite crystals |
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