ZrO<sub>2</sub>（3Y）增韧增强WC-20%Co金属陶瓷复合材料

安林; 韩静涛; 陈军

doi:10.13374/j.issn1001-053x.2006.10.033

ZrO₂（3Y）增韧增强WC-20%Co金属陶瓷复合材料

1. 北京科技大学材料科学与工程学院, 北京 100083;
2. 首钢东星工业有限责任公司, 烟台 264006

基金项目:

国家自然科学基金重点资助项目(No.50175006)

详细信息

作者简介:
安林(1970-),男,博士研究生;韩静涛(1957-),男,教授,博士生导师

分类号: TF125.3;TH117.3
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出版历程
- 收稿日期: 2005-07-15
- 修回日期: 2005-09-06
- 网络出版日期: 2021-08-23
- 刊出日期: 2006-10-24

WC-20%Co cermet composites added ZrO₂(3Y) for toughening and strengthening

1. Material Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. Shougang Dongxing Industry Corporation, Yantai 264006, China

摘要

摘要: 采用热等静压真空烧结工艺制备了不同含量ZrO₂(3Y)/WC-20% Co金属陶瓷复合材料.对复合材料进行了硬度、抗弯强度和冲击韧性等力学性能测试,用扫描电子显微镜(SEM)分析了微观组织及冲击断口成分,用X射线衍射定量分析计算了力学性能试验前后t→m相变量.实验表明ZrO₂(3Y)在WC-20% Co基体中呈球形,均匀分布在Co相和WC相中,该复合材料抗弯强度和冲击韧性明显提高,硬度指标提高不明显.
- 金属陶瓷复合材料 /
- ZrO₂(3Y) /
- 力学性能 /
- 热等静压 /
- 真空烧结 /
- 扫描电子显微镜 /
- X射线衍射分析
Abstract: Cermet Composites ZrO₂(3Y)/WC-20% Co with different ZrO₂(3Y) contents were prepared by normal vacuum hot isostatic pressing. The mechanical properties of the composites such as hardness, bending strength and impact toughness were tested, and SEM was used to characterize the microstructures and components. The phase transformation contents of m-ZrO₂(3Y) to t-ZrO₂(3Y) before and after mechanical tests were measured by X-ray diffraction quantitative phase analysis. The experimental results show that the ZrO₂(3Y) particles are spherical particles with different sizes in WC-20% Co matrix and distribute uniformly in Co phases and WC phases. The bending strength and impact toughness of the cermet composites are improved remarkably, but little in hardness.
- cermet composites /
- ZrO₂(3Y) /
- mechanical properties /
- hot isostatic pressing (HIP) /
- normal vacuum sinter /
- scanning electron microscope (SEM) /
- X-ray diffraction (XRD)