Microstructure and tribological properties of laser clad CaF2/Al2O3 self-lubrication wear-resistant ceramic matrix composite coatings

被引:127
作者
Wang, HM [1 ]
Yu, YL [1 ]
Li, SQ [1 ]
机构
[1] Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Lab Laser Mat Proc & Surface Engn, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
wear; coatings; microstructure; ceramics; composites; laser cladding;
D O I
10.1016/S1359-6462(02)00086-6
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Self-lubrication wear-resistant CaF2/Al2O3 ceramic matrix composite coatings were fabricated on substrates of Al2O3 by laser cladding CaF2-Al2O3 mixed powder blends. Compared with laser clad monolithic Al2O3 coatings, the CaF2/Al2O3 coating has much superior wear resistance and noticeably lower friction coefficient under dry sliding wear test conditions. (C) 2002 Published by Elsevier Science Ltd. on behalf of Acta Materialia Inc.
引用
收藏
页码:57 / 61
页数:5
相关论文
共 8 条
[1]  
BOGDANSKI MS, 1995, LUBR ENG, V51, P675
[2]  
DELLACORTE C, 1991, LUBR ENG, V47, P298
[3]   The effect of counterface on the tribological performance of a high temperature solid lubricant composite from 25 to 650 degrees C [J].
DellaCorte, C .
SURFACE & COATINGS TECHNOLOGY, 1996, 86-7 (1-3) :486-492
[4]   IMPROVEMENT IN TRIBOLOGICAL PROPERTIES OF CHROMIUM-OXIDE COATING AT HIGH-TEMPERATURE BY SOLID LUBRICANTS [J].
LIU, GH ;
ROBBEVALLOIRE, F ;
GRAS, R ;
BLOUET, J .
WEAR, 1993, 160 (01) :181-189
[5]   Laser cladding for high-temperature self-lubricating wear-resistant composite coatings on γ-TiAl intermetallic alloy Ti-48Al-2Cr-2Nb [J].
Liu, XB ;
Wang, CM ;
Yu, LG ;
Wang, HM .
HIGH-POWER LASERS IN MANUFACTURING, 2000, 3888 :312-317
[6]  
LIU XB, 1999, P SOC PHOTO-OPT INS, V3682, P423
[7]  
SLINEY HE, 1966, ASLE TRANS, V9, P336
[8]  
SLINEY HE, 1975, J LUBRICAT TECHN JUL, P500