电焊机2018，Vol.48Issue(3)：205-210,6.DOI:10.7512/j.issn.1001-2303.2018.03.
WC粒度对WC-Ni钎涂耐磨涂层组织性能的影响
Effect of WC particle size on microstructure and properties of WC-Ni wear resistant brazing coating
摘要
Abstract
Powder particle size is the key factor that affects wear resistance coating.The effect of WC granularity on the microstructure and properties of WC-Ni brazing coatings was studied.Three WC-Ni wear-resistant coatings with different WC sizes were prepared by flame brazing technology.The microstructure and properties of the coating were analyzed by scanning electron microscope,energy spectrometer,microhardness tester and rockwell hardness tester.The results show that:With the increase of WC particle size,the metallurgical reaction degree of Ni solder and WC enhanced phase decreased.When WC particle size is 18～23 μm,long strip NiW phase appears in the overlayer of coating interface.When the WC particle size is 250～380 μm,the rockwell hardness of the coating is the highest,and the coating has the best wear resistance.关键词
钎涂/WC/耐磨/组织/性能Key words
brazing/WC/wear resistant coating/microstructure/mechanical properties分类
矿业与冶金引用本文复制引用
周许升,邹伟,龙伟民,黄俊兰,王德智..WC粒度对WC-Ni钎涂耐磨涂层组织性能的影响[J].电焊机,2018,48(3):205-210,6.基金项目
国家国际科技合作专项(2015DFA50470) （2015DFA50470）
