| 钇对9Cr-2WVTa低活化马氏体钢力学性能的影响 |
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| 引用本文： | 严伟,胡平,王伟,赵立君,单以银,杨柯. 钇对9Cr-2WVTa低活化马氏体钢力学性能的影响[J]. 核科学与工程, 2009, 29(1) |
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| 作者姓名： | 严伟 胡平 王伟 赵立君 单以银 杨柯 |
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| 作者单位： | 中国科学院金属研究所,辽宁,沈阳,110016;中国科学院金属研究所,辽宁,沈阳,110016;中国科学院金属研究所,辽宁,沈阳,110016;中国科学院金属研究所,辽宁,沈阳,110016;中国科学院金属研究所,辽宁,沈阳,110016;中国科学院金属研究所,辽宁,沈阳,110016 |
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| 摘 要： | 研究了稀土合金元素钇对聚变堆用低活化马氏体钢9Cr-2WVTa力学性能的影响,分析了钇在低活化马氏体钢中的冶金行为.研究结果表明,钇元素容易在钢中聚集形成富钇的块状夹杂,割裂了基体的连续性,容易破裂形成微孔;轧板中这些富钇块夹杂沿着轧制方向成条线状分布,使得在拉伸和冲击断裂时出现断口分层现象,降低了钢的力学性能.
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| 关 键 词： | 低活化马氏体钢 钇 力学性能 |
Effect of yttrium on mechanical properties of 9Cr-2WVTa low active martensite steel |
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| YAN Wei,HU Ping,WANG Wei,ZHAO Li-jun,SHAN Yi-yin,YANG Ke. Effect of yttrium on mechanical properties of 9Cr-2WVTa low active martensite steel[J]. Chinese Journal of Nuclear Science and Engineering, 2009, 29(1) |
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| Authors: | YAN Wei HU Ping WANG Wei ZHAO Li-jun SHAN Yi-yin YANG Ke |
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| Affiliation: | Institute of Metal Research;Chinese Academy of Sciences;Shenyang of Liaoning Prov.110016;China |
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| Abstract: | The effect of the rare earth element,yttrium,on the mechanical properties of 9Cr-2WVTa low active martensite steel for fusion reactor was studied and the metallurgical behavior of yttrium in the steel was primarily analyzed.The results show that it is easy for yttrium to aggregate and form the blocky yttrium rich inclusions in the steel,which can dissever the continuity of the matrix and produce micro-cracks for fracture.The yttrium rich inclusions were distributed along the rolling direction,which made the... |
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| Keywords: | low active martensite steel yttrium mechanical property |
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