| Nb对高CE灰铸铁耐磨性能的影响 |
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| 引用本文： | 孙小亮,朱洪波,闫永生,华勤,翟启杰.Nb对高CE灰铸铁耐磨性能的影响[J].现代铸铁,2011(2):52-57. |
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| 作者姓名： | 孙小亮 朱洪波 闫永生 华勤 翟启杰 |
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| 作者单位： | 上海大学,材料科学与工程学院,上海,200072 |
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| 基金项目： | 中信-CBMM铌钢研究与开发基金，上海大学研究生创新基金 |
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| 摘 要： | 研究了Nb对高CE灰铸铁耐磨性能的影响,结果表明：（1）Nb可以提高灰铸铁的耐磨性,加入0.25%的Nb时,铸铁的相对耐磨性可提高55%;（2）Nb在基体组织中的固溶强化作用提高了基体的显微硬度,当w（Nb）量为0.46%时,基体显微硬度提高40%;（3）灰铸铁耐磨性能的提高应该归因于基体中的富Nb相,因为富Nb相在基体中的分布及形态对提高铸铁的耐磨性起着明显的作用。
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| 关 键 词： | 灰铸铁 Nb 耐磨性能 |
Influence of Niobium on Abrasion Resistance of High CE Gray Cast Irons |
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| SUN Xiao-liang,ZHU Hong-bo,YAN Yong-sheng,HUA Qin,ZAI Qi-jie.Influence of Niobium on Abrasion Resistance of High CE Gray Cast Irons[J].Modern Cast Iron,2011(2):52-57. |
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| Authors: | SUN Xiao-liang ZHU Hong-bo YAN Yong-sheng HUA Qin ZAI Qi-jie |
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| Affiliation: | SUN Xiao-liang,ZHU Hong-bo,YAN Yong-sheng,HUA Qin,ZAI Qi-jie(Materials Science and Engineering College,Shanghai University,Shanghai 200072,China) |
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| Abstract: | The influence of niobium on the abrasion resistance of high CE gray cast irons was investigated.The result showed:(1)niobium could increase the abrasion resistance of gray cast irons,and when adding 0.25% Nb,the relative abrasion resistance of gray cast irons could be increased by 55%;(2)the solid-solution strengthening effect of Nb in matrix structure enhanced microhardness of the matrix,and when the Nb content was of 0.46%,the microhardness of the matrix was increased by 40%;(3)the abrasion resistance inc... |
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| Keywords: | gray cast iron niobium abrasion resistance |
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