Microstructure and Mechanical Properties of HVOF Sprayed WC-Co/NiCrBSi, Cr3C2 Coatings on Al Alloys

被引：0
|
作者：
Ozel, Serkan [1 ]
机构：
[1] Bitlis Eren Univ, Fac Engn Architecture, Dept Mech Engn, Bitlis, Turkey
来源：
MATERIALS TESTING | 2013年 / 55卷 / 09期
关键词：
WEAR BEHAVIOR; ABRASIVE WEAR; FATIGUE BEHAVIOR; BOND COAT; PERFORMANCE;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, WC-Co/NiCrBSi and Cr3C2 powders were coated on surface of Al alloys (AA7075-T651, AA5083, AA2024-T4) by using HVOF (High Velocity Oxy Fuel) process. The coated samples were characterized by means of a scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX, XRD), hardness and bonding strength. These results showed that the maximum hardness and minimum surface roughness have been obtained at specimens coated with WC-Co. The bonding strengths of specimens used AA2024-T4 substrates were maximum. XRD study revealed that WC, W2C, C, Co, Cr3Ni2SiC, W5Si3, Cr7C3, Cr3C2, Cr, and Ni phases are present in the coatings.
引用
收藏
页码：694 / 700
页数：7
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