Ni-P-Al_2O_3化学复合镀层的制备及其耐磨性能  

Researches on fabrication and wear properties of electroless Ni-P-Al_2O_3 composite coatings

作　　者：周长海[1] 刘爱莲[1] 许玉容 李凤春 

机构地区：[1]黑龙江科技大学材料科学与工程学院,哈尔滨150022 [2]哈尔滨建成集团有限公司,哈尔滨150030

出　　处：《黑龙江科技大学学报》2015年第3期261-264,279,共5页Journal of Heilongjiang University of Science And Technology

基　　金：国家自然科学基金项目(51201062);黑龙江省教育厅科学技术研究项目(12543069)

摘　　要：碳钢表面进行化学镀处理,对提高碳钢的耐磨性能有重要作用。在Q235钢表面制备Ni-P镀层及不同纳米Al2O3颗粒含量的Ni-P-Al2O3镀层。通过扫描电子显微镜、X射线衍射仪和摩擦磨损实验机对镀层的表面形貌、相组成及摩擦磨损性能进行研究。结果表明:Ni-P-Al2O3镀层的磨损量、摩擦系数均小于Ni-P镀层,分别为2.6 mg和0.5;Ni-P-Al2O3镀层的磨损以犁沟磨损为主,磨粒磨损和黏着磨损为辅,Ni-P镀层的磨损为犁沟磨损。该研究可以为Ni-P-Al2O3镀层的实际应用提供理论支持。This paper is concerned with a research motivated by the realization that the electroless plating on carbon steels plays an important role in improving their wear resistance. The study involves fabricating the Ni-P electroless coating and electroless Ni-P-Al2O3 composite coatings with different content of nano-Al2O3 particles on Q235 steel and characterizing the surface morphology,chemical composition and wear properties using scanning electron microscopy,X-ray diffraction and friction and wear testing machine. The study shows that the Ni-P-Al2O3 composite coatings have abrasion loss and the frication coefficient,both of which are lower than those of Ni-P electroless coating,and are 2. 6 mg and 0. 5,respectively; Ni-P-Al2O3 composite coatings are governed by the wear mechanism dominated furrow and complemented by abrasive and adhesive wear. The Ni-P electroless coating ischaracterized by furrow wear. The research may provide the theoretical support for the practical application of electroless Ni-PAl2O3 composite coatings.

关 键 词：NI-P AL2O3颗粒 化学镀 耐磨性 

分 类 号：TQ153.2[化学工程—电化学工业]