%0 Journal Article
%T Effect of Nano-Diamond Particulates on the Microstructure and Wear-Resistance of Electrodeposited Ni-Matrix Coatings<br>纳米金刚石对电沉积镍基复合镀层微观结构及抗磨性能的影响
%A WANG Li-ping~
%A <br>王立平
%A 高燕
%A 薛群基
%A 刘惠文
%A 徐洮
%J 摩擦学学报
%D 2004
%I 
%X The microcrystalline Ni- and nanocrystalline Ni-based composite coatings incorporated with diamond nano-particulates were prepared making used of electrodeposition. The effect of the nano-diamond particulates on the surface morphology, microstructure, hardness, and wear-resistance of the two types of Ni-matrix coatings were investigated. Thus the Ni-matrix coatings with and without the nano-diamond particulates were characterized by means of X-ray diffraction and scanning electron microscopy. The friction and wear behaviors of the coatings sliding against AISI1045 steel under unlubricated condition in a ball-on-disc configuration were evaluated using a UMT-2MT friction and wear tester. The worn surfaces morphologies of the coatings were also analyzed by means of scanning electron microscopy. It was found that the incorporation of the nano-diamond particulates contributed to greatly increase the hardness and wear resistance of the microcrystalline Ni-matrix coating, but it had little effect on the hardness of the nanocrystalline Ni-matrix coating. Moreover, the nano-diamond particulates were harmful to the wear-resistance of the nanocrystalline Ni-matrix coating. The increased wear-resistance of the microcrystalline Ni-matrix coating in the presence of the nano-diamond particulates was attributed to the dispersive strengthening effect of the nnaoparticulates, which helped to increase the ability of the coating to resist plastic deformation and adhesion as well.
%K electrodeposition
%K nano-diamond
%K Ni-matrix composite coating
%K wear-resistance<br>电沉积
%K 纳米金刚石
%K 镍基复合镀层
%K 抗磨性能
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=2F467A5C6371C830162AAA01D7DAD07A&aid=0EF78C7AACAA1DA5&yid=D0E58B75BFD8E51C&vid=B91E8C6D6FE990DB&iid=B31275AF3241DB2D&sid=8CE1095CD639AEF4&eid=4A2356A1257A12EB&journal_id=1004-0595&journal_name=摩擦学学报&referenced_num=4&reference_num=9