中文摘要：

介绍了WC-Co梯度硬质合金的性能优势与结构特点,对国内相关研究的制备工艺及检测方法和国外的研究近况进行了分析,并总结了WC-Co梯度硬质合金研究目前存在的一些不足。

英文摘要：

In this paper, the excellent properties and structure characteristics of WC-Co gradient cemented carbides are described. The related preparation, detection method and the latest development of WC-Co gradient cemented carbides are also analyzed. And some deficiencies of current study are summarized.