Modification of thermally sprayed cemented carbide layer by friction stir processing
| Autor: | Tadashi Mizuno, Genryu Abe, Hidetoshi Fujii, Yoshiaki Morisada, Masao Fukusumi, Toru Nagaoka |
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| Rok vydání: | 2010 |
| Předmět: |
Materials science
Friction stir processing Diffusion Metallurgy Surfaces and Interfaces General Chemistry Substrate (electronics) engineering.material Condensed Matter Physics Surfaces Coatings and Films Metal visual_art Tool steel Materials Chemistry visual_art.visual_art_medium engineering Cemented carbide Thermal spraying Layer (electronics) |
| Zdroj: | Surface and Coatings Technology. 204:2459-2464 |
| ISSN: | 0257-8972 |
| DOI: | 10.1016/j.surfcoat.2010.01.021 |
| Popis: | The modification of a thermally sprayed cemented carbide (WC–CrC–Ni) layer by friction stir processing (FSP) was studied. The cemented carbide layer was successfully modified using a sintered cemented carbide (WC–Co) tool. The defects in the cemented carbide layer disappeared and the hardness of the cemented carbide layer increased to ∼ 2000 HV, which was about 1.5 times higher than that of the as-sprayed cemented carbide layer. Additionally, the cemented carbide layer was bonded to the SKD61 (Nominal composition: 0.35–0.42 mass% C, 0.8–1.2 mass% Si, 0.25–0.5 mass% Mn, 4.8–5.5 mass% Cr, 1.0–1.5 mass% Mo, 0.8–1.2 mass% V, balance Fe) substrate by diffusion of the metallic elements and the distortion of the coating–substrate interface producing a mechanical interlocking effect. |
| Databáze: | OpenAIRE |
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