| 纳米氧化铈对纳米晶硬质合金组织性能的影响 |
| |
| 引用本文： | 刘娟,王铀,王政,罗鑫. 纳米氧化铈对纳米晶硬质合金组织性能的影响[J]. 热处理技术与装备, 2009, 30(5): 11-15,19 |
| |
| 作者姓名： | 刘娟 王铀 王政 罗鑫 |
| |
| 作者单位： | 哈尔滨工业大学材料科学系,黑龙江,哈尔滨,150001;哈尔滨工业大学材料科学系,黑龙江,哈尔滨,150001;哈尔滨工业大学材料科学系,黑龙江,哈尔滨,150001;哈尔滨工业大学材料科学系,黑龙江,哈尔滨,150001 |
| |
| 摘 要： | 本文通过对比试验，研究了加入与未加入纳米CeO2的纳米晶WC-10％Co硬质合金的微观组织结构和性能（硬度、弹性系数、断裂韧性和耐磨性等），对纳米CeO2的作用机理进行了进一步的探讨。研究结果表明，纳米晶硬质合金在烧结制备过程中晶粒容易长大并容易生成缺碳相，而纳米CeO2的加入不但可以抑制硬质合金中碳化钨晶粒的不均匀长大，使烧结后硬质合金中的晶粒度明显减小，同时还可以显著抑制缺碳相的产生，从而大幅度提高纳米晶硬质合金的综合性能。
|
| 关 键 词： | 纳米CeO2 纳米晶WC-10 Co硬质合金 |
Effect of Nanoscale CeO_2 on Microstructure and Properties of Nanocrystalline WC-Co Hardmetal |
| |
| LIU Juan,WANG You,WANG Zheng,LUO Xin. Effect of Nanoscale CeO_2 on Microstructure and Properties of Nanocrystalline WC-Co Hardmetal[J]. Heat Treatment Technology and Equipment, 2009, 30(5): 11-15,19 |
| |
| Authors: | LIU Juan WANG You WANG Zheng LUO Xin |
| |
| Affiliation: | LIU Juan,WANG You,WANG Zheng,LUO Xin(School of Materials Science and Engineering,Harbin Institute of Technology,Harbin Heilongjiang 150001,China) |
| |
| Abstract: | In this paper,the microstructures and properties(hardness,elastic modulus,fracture toughness,wear resistance etc.)of nanocrystalline WC-10%Co hardmetal with or without nanoscale CeO2 are studied by comparative trial.The mechanism of nanoscale CeO2 in the WC-10%Co hardmetal is farther discussed.The results indicate that grains of nanocrystalline hardmetal are very easy to grow and to form carbon-poor phase during sintering.However,adding nanoscale CeO2 it can not only restrain heterogeneous growth of WC grai... |
| |
| Keywords: | nanoscale CeO2 nanocrystalline WC-10%Co hardmetal |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
