Improved Wear Resistance of Low Carbon Steel with Plasma Melt Injection of WC Particles

被引：12
|
作者：
Liu, Aiguo [1 ]
Guo, Mianhuan [1 ]
Hu, Hailong [1 ]
机构：
[1] Harbin Inst Technol, State Key Lab Adv Welding Prod Technol, Harbin 150001, Peoples R China
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2010年 / 19卷 / 06期
关键词：
carbon/alloy steels; metal matrix composites; surface engineering; BEHAVIOR; COMPOSITES; COATINGS;
D O I：
10.1007/s11665-009-9547-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Surface of a low carbon steel Q235 substrate was melted by a plasma torch, and tungsten carbide (WC) particles were injected into the melt pool. WC reinforced surface metal matrix composite (MMC) was synthesized. Dry sliding wear behavior of the surface MMC was studied and compared with the substrate. The results show that dry sliding wear resistance of low carbon steel can be greatly improved by plasma melt injection of WC particles. Hardness of the surface MMC is much higher than that of the substrate. The high hardness lowers the adhesion and abrasion of the surface MMC, and also the friction coefficient of it. The oxides formed in the sliding process also help to lower the friction coefficient. In this way, the dry sliding wear resistance of the surface MMC is greatly improved.
引用
收藏
页码：848 / 851
页数：4
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