%0 Journal Article
%T Tribological Properties of Ni-clad Nano-Al2O3 Composite Coatings by High-energy Laser Irradiation<br>激光镍包纳米Al2O3增强复合涂层的摩擦磨损性能研究
%A JU Yi
%A GUO Shao-yi
%A CHEN Sheng-zuan
%A YE Bing-liang
%A <br>居毅
%A 郭绍义
%A 陈生钻
%A 叶秉良
%J 摩擦学学报
%D 2007
%I 
%X Ni-clad nano-Al2O3 composite coatings were prepared on carbon steel plate by high power continuous wave CO2 laser beam. The fabrication of Ni-clad nano-Al2O3 composite coatings was investigated. The friction properties were examined under dry sliding condition using pin-on-disc tester. The results showed that the Ni-clad nano- Al2O3 composite coating had a microhardness value of 810Hv, greater than for without treated ones. The Ni-clad nano-Al2O3 composite coating possessed not only a higher wear resistance but also a lower friction coefficient. It is interest to note that the wear mass loss and friction coefficient of Ni-clad nano-Al2O3 composite coatings reduced to about 38% and 40% in comparison with those without coating respectively. The nano-Al2O3 were uniformly distributed in the carbon steel matrix and greatly increased the microhardness and tribological properties of the Ni-clad nano-Al2O3 composite coatings. The results also showed that the amount of Al2O3 significantly affected wear resistance of Ni-clad nano-Al2O3 composite coatings but they had little influence on their friction coefficient.
%K Ni-clad nano-Al2O3
%K composite coating
%K laser cladding
%K friction and wear behavior<br>镍包纳米氧化铝
%K 复合涂层
%K 激光熔覆
%K 摩擦磨损性能
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=2F467A5C6371C830162AAA01D7DAD07A&aid=5550F3C1BA06BC17&yid=A732AF04DDA03BB3&vid=DB817633AA4F79B9&iid=CA4FD0336C81A37A&sid=771152D1ADC1C0EB&eid=8E6AB9C3EBAAE921&journal_id=1004-0595&journal_name=摩擦学学报&referenced_num=0&reference_num=9