| 稀土在含铌钢中的作用规律 |
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| 引用本文： | 朱兴元,朱天佑,陈邦文.稀土在含铌钢中的作用规律[J].钢铁研究,2000(2):56-59. |
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| 作者姓名： | 朱兴元 朱天佑 陈邦文 |
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| 作者单位： | 武汉钢铁集团公司(朱兴元，陈邦文，姜凤琴，曾静)，北京科技大学(朱天佑，林勤) |
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| 摘 要： | 研究了稀土对含铌钢组织和性能的影响，研究结果表明，稀土元素的加入使钢的纵横向强度先下降而后上升，钢的延伸率和冲击功则先上升而后下降，其对改善钢的强度和－２０℃以下冲击功的各向异性不明显，而且对细化晶粒度和夹杂物级别影响不显著，但稀土元素的加入使铌的析出量略有增加。
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| 关 键 词： | 稀土 含铌钢 性能 组织 微合金化钢 |
ROLE OF RARE EARTH IN Nb-BEARING STEEL |
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| Zhu Xingyun,Cheng Bangwen,Jiang Fengqin,Zeng Jing.ROLE OF RARE EARTH IN Nb-BEARING STEEL[J].Research on Iron and Steel,2000(2):56-59. |
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| Authors: | Zhu Xingyun Cheng Bangwen Jiang Fengqin Zeng Jing |
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| Affiliation: | Zhu Xingyun Cheng Bangwen Jiang Fengqin Zeng Jing (Wuhan Iron & Steel Corp.) Zhu Tianyou Lin qin (University of Science & Technology Beijing) |
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| Abstract: | Effects
of rare earth on the micro structure and properties of Nb-bearing steel have been
investigated. Results prove that addition of rare earth elements into the steel causes the
transversal and longitudinal strength of the strength decline initially and rise
afterward, and the elongation and impact energy of the steel change in the reversal
direction. As the results addition of rare earth in the steel could hardly improve the
strength, anistropism and impact toughness below -20℃ and its effects on the grain
refining and inclusion size improvement are also negligible, however it could probably
offer a slight increase in Nb precipitation. |
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| Keywords: | rare earth Nb bearing steel property |
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