Fabrication, microstructure, and wear performance of WC-Fe composite/metal coating fabricated by resistance seam welding

Journal Article · Fri Dec 15 04:00:00 EST 2017 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2017.10.021· OSTI ID:22804820

Wang, Wenqin ^[1]; Zeng, Xian ^[2]; Li, Yulong ^[1]; Wang, De; Liu, Ying ^[1]; Yamaguchi, Tomiko; Nishio, Kazumasa; Cao, Jian ^[3]

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1. School of Mechanical and Electrical Engineering, Nanchang university, Nanchang 330031 (China)
2. School of Materials Science, Wuhan University of Technology, Wuhan 430070 (China)
3. State Key Lab of Advanced Welding and Joining, Harbin Institute of Technology, 150001 (China)

Highlights: • WC-Fe/metal coating consisted of WC-Fe layer and metal interlayer was fabricated by resistance seam welding. • The microstructure, hardness and wear performance of coatings with different WC particles size were analyzed. • The wear mechanism of coatings showed huge difference following various sliding distance. - Abstract: WC-Fe composite/metal coatings consisting of a WC-Fe composite layer and a metal interlayer were successfully fabricated on an Al 6061 substrate by resistance seam welding. The microstructures and phase compositions of the WC-Fe composite/metal coatings with different WC particle sizes (nano, fine, and coarse) were investigated. The WC-Fe composite layer consisted of WC particles and a Fe-C-Si super hard alloy (SHA) component, whereas the metal interlayer was composed of SHA, FeAl{sub 3}, Fe{sub 2}Al{sub 5}, and Al 6061. The surface microhardness of the WC-Fe composite/metal coating increased with increasing WC particle size. The wear performance of the coatings tested with different sliding distances is discussed in detail. Coating-C (coarse) showed the best wear resistance. The wear rates of both coating-N (nano) and coating-C decreased as the sliding distance increased, while coating-F (fine) demonstrated the opposite behavior. The wear mechanisms of the coatings were drastically different owing to the significantly different WC particle behavior at various sliding distances.

• OSTI ID: 22804820
• Journal Information: Materials Characterization, Journal Name: Materials Characterization Vol. 134; ISSN 1044-5803; ISSN MACHEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COATINGS
COMPOSITE MATERIALS
IRON
LAYERS
MICROHARDNESS
MICROSTRUCTURE
SUBSTRATES
SURFACES
TUNGSTEN CARBIDES
WEAR RESISTANCE
WELDING