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稀土变质剂对高铬铸铁锤头组织和耐磨性能的影响
引用本文:汤帅,斯庭智,张庆安. 稀土变质剂对高铬铸铁锤头组织和耐磨性能的影响[J]. 安徽工业大学学报, 2009, 26(1): 32-34
作者姓名:汤帅  斯庭智  张庆安
作者单位:安徽工业大学,材料科学与工程学院,安徽,马鞍山,243002  
摘    要:探讨在相同试验条件下,稀土变质剂加入量对高铬铸铁锤头组织、硬度和耐磨性的影响。结果表明,加入稀土变质剂能细化组织,铸态锤头的碳化物由鱼骨状转变为块状,热处理态锤头的碳化物由条状转变为颗粒状。加入稀土变质剂能提高锤头的硬度和耐磨性,当加入量高于0.3%(质量分数)时硬度和耐磨性提高的程度减小。

关 键 词:高铬铸铁  稀土变质剂  显微组织  硬度  耐磨性

Influence of RE Modification on the Hardness and Wear Resistance of High-Chromium Cast Iron Hammerhead
TANG Shuai,SI Ting-zhi,ZHANG Qing-an. Influence of RE Modification on the Hardness and Wear Resistance of High-Chromium Cast Iron Hammerhead[J]. Journal of Anhui University of Technology, 2009, 26(1): 32-34
Authors:TANG Shuai  SI Ting-zhi  ZHANG Qing-an
Affiliation:School of Materials Science and Engineering;Anhui University of Technology;Ma'anshan 243002;China
Abstract:The influences of RE modification on the microstructure, hardness and wear resistance of high-chromium cast iron hammerhead were investigated. The results showed that the microstructure of high-chromium cast iron was refined by the addition of RE modification. The shape of the carbides of as-casted hammerhead changed from fish-bone to bulk, while that of the heat-treated hammerhead changed from strip to particle. The hardness and wear resistance of high-chromium cast iron were both improved by the addition ...
Keywords:high-Chromium cast iron  RE modification  microstructure  hardness  wear resistance  
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