| 抑制剂对超细WC-Co硬质合金性能的影响 |
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| 引用本文： | 陈慧,栾道成,王正云,陈勤文,李重典.抑制剂对超细WC-Co硬质合金性能的影响[J].中国钨业,2011,26(1):34-37. |
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| 作者姓名： | 陈慧 栾道成 王正云 陈勤文 李重典 |
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| 作者单位： | 西华大学,材料科学与工程学院,四川,成都,610039 |
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| 基金项目： | 科技部支持项目(2009ZX04012-023):高效可转位刀具系列及超硬工具的研究及产业化; 西华大学创新基金 |
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| 摘 要： | 采用高能球磨、真空烧结工艺制备超细WC-Co硬质合金。研究了抑制剂的预磨时间对WC-10Co硬质合金粒度及烧结试样性能的影响。对比了相同抑制剂配比对Co含量不同的硬质合金性能的影响以及稀土对硬质合金性能的影响。结果表明:通过对晶粒长大抑制剂的预磨,其粒度明显细化。加入预磨时间为120 h的抑制剂,WC-10Co硬质合金的平均粒度为0.3μm,硬度达到92.1 HRA。相同抑制剂配比的硬质合金,硬度和致密度随Co含量的降低而增大。稀土氧化物Y2O3的加入,有利于改善硬质合金的性能。
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| 关 键 词： | 超细硬质合金 抑制剂 预磨时间 Co含量 稀土 |
Effects of Inhibitors on the Properties of Ultra Fine WC-Co Cemented Carbide |
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| CHEN Hui,LUAN Dao-cheng,WANG Zheng-yun,CHEN Qin-wen,LI Zhong-dian.Effects of Inhibitors on the Properties of Ultra Fine WC-Co Cemented Carbide[J].China Tungsten Industry,2011,26(1):34-37. |
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| Authors: | CHEN Hui LUAN Dao-cheng WANG Zheng-yun CHEN Qin-wen LI Zhong-dian |
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| Affiliation: | CHEN Hui,LUAN Dao-cheng,WANG Zheng-yun,CHEN Qin-wen,LI Zhong-dian(School of Material Science and Engineering,Xihua University,Chengdu 610039,Sichuan,China) |
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| Abstract: | Ultra-fine WC-Co cemented carbides were prepared by high ball milling and vacuum-sinter processing in this paper.The effects of inhibitor ball milling time on the grain size and properties of the test samples were investigated.The properties of the cemented carbides with different Co content were compared when the same inhibitors were droped in them.The influences of additive rare earth dropped in the cemented carbides were studied.Experimental results showed that the grain growth inhibitors were obvious sl... |
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| Keywords: | ultra-fine WC-Co cemented carbides grain growth inhibitors ball milling time Co content rare earth |
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