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| 矿用纳米稀土硬质合金的磨损性能研究 | |
| 引用本文： | 彭飞,王政,金宝士,刘娟,王铀.矿用纳米稀土硬质合金的磨损性能研究[J].热处理,2010,25(4):39-43. |
| 作者姓名： | 彭飞 王政 金宝士 刘娟 王铀 |
| 作者单位： | 1. 哈尔滨工业大学材料科学与工程学院,黑龙江,哈尔滨,150001;哈电集团(秦皇岛)重型装备有限公司,河北,秦皇岛,066206 2. 哈尔滨工业大学材料科学与工程学院,黑龙江,哈尔滨,150001 3. 佳木斯大学材料学院,黑龙江,佳木斯,154000 |
| 摘 要： | 以石英砂为磨料,研究了YG12硬质合金的冲击磨料磨损性能与其纳米稀土添加量、硬度及断裂韧度之间的关系。结果表明,随着纳米稀土含量的增加,该硬质合金的磨损体积先减小再增大,加入1wt%纳米稀土时,其磨损量最小;随着硬度、断裂韧度的增加,合金的抗磨损性能提高。岩石颗粒的混合、粘结相的脆变和WC晶粒的破碎是矿用纳米稀土硬质合金的主要磨损机制。 |
| 关 键 词： | 硬质合金 耐磨损性能 钻岩 稀土 |
Wearing Characteristic of Mining Cemented Carbide with Nanosized Rare Earths |
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| PENG Fei,WANG Zheng,JIN Bao-shi,LIU Juan,WANG You.Wearing Characteristic of Mining Cemented Carbide with Nanosized Rare Earths[J].Heat Treatment,2010,25(4):39-43. | |
| Authors: | PENG Fei WANG Zheng JIN Bao-shi LIU Juan WANG You |
| Affiliation: | 1.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,Heilongjiang; 2. Harbin Power Plant Equipment Cooperation (Qinhuangdao) Heavy Equipment Co.,LTD., Qinhuangdao 066206,Hebei;3.School of Materials,Jiamusi University,Jiamusi 154000,Heilongjiang) |
| Abstract: | The impact abrasive wear characteristic of YG12 cemented carbide as a function of nanosized rare earths content,hardness and fracture toughness was investigated by using quartz sand as a brasive material. The results indicate that the worn volume of cemented carbide will first decreases and then increase with the increase of nano-sized rare earths content,with wear loss of cemented carbide with 1wt% nanosized rear earths being the lowest. Also,the wear resistance of cemented carbide will be heightened with the increase of both hardness and fracture toughness. The wear of mining cemented carbide arises essentially from the mixed rock,the embritllement of binder phase and the break of WC grains. |
| Keywords: | cemented carbide wear resistance rock boring rear earths |
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