| WC-20%Co添加陶瓷颗粒ZrO2的试验研究 |
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| 引用本文： | 安林,韩静涛,陈军.WC-20%Co添加陶瓷颗粒ZrO2的试验研究[J].粉末冶金工业,2005,15(3):19-22. |
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| 作者姓名： | 安林 韩静涛 陈军 |
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| 作者单位： | 1. 北京科技大学,材料加工与控制工程系,北京,100083
2. 首钢东星工业有限责任公司,烟台,264006 |
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| 摘 要： | 利用热等静压真空烧结工艺制备了4种不同含量ZrO 2(3Y)的WC-20 %Co硬质合金.利用光学、扫描电子显微镜(SEM)进行了微观组织观察,并对试样进行了硬度测试、抗弯强度、冲击韧性和耐磨性的力学性能测试,试验结果表明ZrO 2(3Y)在WC-20 %Co基体中呈球形,均匀分布在Co相和WC相中,添加了ZrO 2(3Y)的WC-20 %Co的硬质合金抗弯强度和冲击韧性明显提高,耐磨性能有明显改善,硬度指标变化不大.
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| 关 键 词： | ZrO 2(3Y)硬质合金 力学性能 |
| 文章编号： | 1006-6543(2005)03-0019-04 |
| 修稿时间： | 2004年12月30 |
STUDY ON WC-20 %Co CEMENTED CARBIDES ADDED WITH ZrO2 |
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| An LIU,HAN Jintao,CHEN Jun.STUDY ON WC-20 %Co CEMENTED CARBIDES ADDED WITH ZrO2[J].Powder Metallurgy Industry,2005,15(3):19-22. |
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| Authors: | An LIU HAN Jintao CHEN Jun |
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| Abstract: | Cemented carbides WC-20 %Co with different ZrO_2(3Y) content were prepared by normal vacuum hot-pressing sintering.The optical microscope and SEM were used to observe their microstructure,and the mechanical properties of specimens (hardness,bending strength,impact toughness and wear resistance) was tested.The results show that the ZrO_2(3Y) particles in WC-20 %Co are spherical of different size and distributed uniformly in Co phases and WC phases,the bending strength,impact toughness and wear resistance of WC-20 %Co added with ZrO_2(3Y) are improved remarkably,but the hardness is changed alittle only. |
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| Keywords: | ZrO_2(3Y) Cemented Carbide mechanical properties |
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