超声波辅助射流电沉积Ni-W-Al_(2)O_(3)纳米复合镀层工艺参数优化及性能研究  

Optimization of process parameters and properties of ultrasonic assisted jet electrodeposition of Ni-W-Al_(2)O_(3) nanocomposite coating

作　　者：马春阳 何泓鑫 夏法锋[1] 王晨[1] 苑博旭 刘晓平 王俊夫 MA Chunyang;HE Hongxin;XIA Fafeng;WANG Chen;YUAN Boxu;LIU Xiaoping;WANG Junfu(School of Engineering,Northeast Agricultural University,Harbin 150030,Chinaa;State Grid Heilongjiang Electric Power Co.,Ltd.,Harbin 150090,China)

机构地区：[1]东北农业大学工程学院,哈尔滨150030 [2]国网黑龙江省电力有限公司哈尔滨供电公司,哈尔滨150090

出　　处：《东北农业大学学报》2024年第7期93-102,共10页Journal of Northeast Agricultural University

基　　金：国家自然科学基金项目(51974089)。

摘　　要：为提高农机部件表面耐磨性能,采用超声波辅助射流电沉积方法制备Ni-W-Al_(2)O_(3)纳米复合镀层。利用JMP软件中预制的响应曲面刻画器、等高线刻画器及预制刻画器分析不同工艺参数(射流速率、Al_(2)O_(3)纳米粒子含量及超声波功率)间交互作用对纳米复合镀层显微硬度的影响,确定最佳工艺参数组合。为验证制备NiW-Al_(2)O_(3)纳米复合镀层最优工艺参数组合,利用扫描电子显微镜(SEM)、X射线衍射仪(XRD)、透射电子显微镜(TEM)、显微硬度计及摩擦磨损试验机等设备,测试不同工艺参数组合下制备的纳米复合镀层表面形貌、组织结构及性能。结果表明:射流速率、Al_(2)O_(3)纳米粒子含量、超声波功率、二次交互项及二次幂项均对纳米复合镀层显微硬度影响较为显著。经JMP软件优化后的制备工艺参数组合为:射流速率3.71 m·s^(-1),Al_(2)O_(3)纳米粒子含量15.38 g·L^(-1),超声波功率210 W。最优工艺参数组合制得纳米复合镀层具有表面形貌致密、晶粒细化程度高、显微硬度大(724.9 HV)、摩擦系数及磨损量低等特点。To enhance the wear resistance of agricultural machinery parts,ultrasonic-assisted jet electrodeposition was utilized to fabricate the Ni-W-Al_(2)O_(3) nanocomposite coatings.The response surface plotter,contour plotter,and preset plotter within JMP software were used to analyze the interac-tions among different process parameters(jet velocity,the Al_(2)O_(3) nanoparticle content,and ultrasonic power)on the microhardness of the nanocomposite coatings and to determine the optimal combination of process parameters.To validate the optimal process parameters for fabricating the Ni-W-Al_(2)O_(3) nan-ocomposite coatings,equipment such as Scanning Electron Microscope(SEM),X-ray Diffractometer(XRD),Transmission Electron Microscope(TEM),microhardness tester,and a tribometer were used to assess the surface morphology,microstructure,and properties of the coatings prepared under different process parameter combinations.The results indicated that jet velocity,Al_(2)O_(3) nanoparticle content,ultrasonic power,interaction terms,and quadratic terms significantly influenced the microhardness of the nanocomposite coatings.The optimized process parameters using JMP software were as the following:jet velocity of 3.71-m·s^(-1),Al_(2)O_(3) nanoparticle content of 15.38-g·L^(-1),and ultrasonic power of 210 W.Additionally,the coatings prepared with these optimal parameters exhibited a dense surface morpho-logy,refined grain size,high microhardness(724.9 HV),and low friction coefficients and wear rates.

关 键 词：超声波辅助射流电沉积 工艺参数优化 Ni-W-Al_(2)O_(3)纳米复合镀层 显微硬度 耐磨性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]