工艺条件对Cu-WC复合镀层显微硬度的影响  

Effect of Process Conditions on Microhardness of Cu-WC Composite Coatings

作　　者：张伟华[1] 赵刚[1] 安丽洁[1] 冷秀娟 孙伟[1] ZHANG Weihua;ZHAO Gang;AN Lijie;LENG Xiujuan;SUN Wei(Qingdao Huanghai University,Qingdao 266427,China)

机构地区：[1]青岛黄海学院

出　　处：《电镀与环保》2019年第5期7-10,共4页Electroplating & Pollution Control

摘　　要：分别选用空气搅拌、超声波搅拌作为搅拌方式,在相同的实验条件下进行了对比实验。比较了两种Cu-WC复合镀层的显微硬度,同时研究了超声波功率对Cu-WC复合镀层显微硬度的影响。结果表明:采用超声波搅拌制备的Cu-WC复合镀层的显微硬度较采用空气搅拌制备的Cu-WC复合镀层的显微硬度提高了19.7%;较低的超声波功率对Cu-WC复合镀层的显微硬度影响不大,而过高的超声波功率不利于Cu-WC复合镀层显微硬度的提高;当超声波功率为240W时,Cu-WC复合镀层的显微硬度达到最大值1681MPa;Cu-WC复合镀层的显微硬度与平均晶粒尺寸基本遵从Hall-Petch关系。Air stirring or ultrasonic stirring was selected as stirring method,respectively,and comparative experiments were carried out under the same experimental conditions.The microhardness of two Cu-WC composite coatings was compared,and the influence of ultrasonic power on the microhardness of Cu-WC composite coating was also studied.The results showed that the microhardness of the composite coating prepared by ultrasonic stirring was 19.7%higher than that one prepared by air stirring.The lower ultrasonic power has little effect on the microhardness of composite coating,while overhigh ultrasonic power was unfavorable for the improvement of the microhardness of composite coating.When the ultrasonic power was 240 W,the microhardness of composite coating reached a maximum value of 1681MPa.The microhardness and average grain size of composite coating were basically in agreement with Hall-Petch relationship.

关 键 词：Cu-WC复合镀层 显微硬度 空气搅拌 超声波搅拌 超声波功率 

分 类 号：TQ153[化学工程—电化学工业]