中文摘要：

采用常规的粉末冶金法制备出多层Cu/WC功能梯度材料,对烧结出的试样分别进行了冷轧和热轧处理。利用扫描电镜分别观察得出烧结态、冷轧态、热轧态三种试样的内部组织形貌,并作了强度方面的检测。结果表明：此种方法制备出的Cu/WC功能梯度材料,致密度较好。经过二次加工后,最高拉伸强度达到332MPa。认为埋粉烧结技术设备简单、成本低廉。对烧结态的材料进行二次加工后,改变了Cu基体与WC颗粒之间的结合状况,从而使材料的性能得到明显改善。

英文摘要：

The multi-layer Cu/WC functionally graded materials （FGM） were prepared by conventional powder metallurgy. SEM and tensile test were conducted to follow the morphology and the strength of the sintered,the cold rolled and the hot rolled FGM samples. The experimental results show that the prepared Cu/WC FGM are good in density and the secondary processing may lead higher tensile strength. These suggest that the buried powder sintering technology is simple in equipment and low in cost,the secondary processing can significantly improve the properties of materials via a better combination of Cu matrix and WC particles.