中文摘要：

综述了非均匀结构硬质合金的制备方法、国内外的研究现状及存在的问题；针对非均匀结构硬质合金制备工艺影响因素多、过程复杂、产品显微组织结构难以精确控制等特点，展望了该领域的发展趋势。

英文摘要：

Preparation methods, domestic and oversea development and problems are reviewed of the cemented carbides with nonuniform microstructure. The preparation processes of this type o{ cemented carbides have many influencing factors with complicated steps,and the microstructure of their products is difficult to be precisely controlled. Therefore, development trends in this field are proposed.