Microstructure and abrasive wear behavior of a novel FeCrMoVC laser cladding alloy for high-performance tool steels
| Autor: | Uta Kühn, N. Schädlich, Lars Giebeler, J. Hufenbach, Jürgen Eckert, J. Sander, Josephine Zeisig |
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| Rok vydání: | 2017 |
| Předmět: |
Austenite
Cladding (metalworking) Materials science Abrasive Alloy Metallurgy Hardfacing 02 engineering and technology Surfaces and Interfaces Welding engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Surfaces Coatings and Films law.invention 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials law Tool steel Materials Chemistry engineering Composite material 0210 nano-technology |
| Zdroj: | Wear. :107-112 |
| ISSN: | 0043-1648 |
| DOI: | 10.1016/j.wear.2017.04.021 |
| Popis: | This work shows the successful application of a novel Fe85Cr4Mo8V2C1 (wt%) laser cladding wire material on a high-performance tool steel (1.2379, X155CrMo12-1) using a pulsed Nd:YAG laser system. Due to the high cooling rates during the welding process and appropriate laser parameters, a fine, homogeneous microstructure composed of martensite, austenite as well as VC- and Mo 2 C-type carbides was formed. This combination of phases along with their special morphology and distribution result in crack-free dense coatings with an enhanced hardness and abrasive wear resistance compared to the substrate material and a conventionally applied cladding alloy. In summary, laser cladding with the novel FeCrMoVC alloy shows a high potential for repair welding and hardfacing of high-performance carbon-rich steel tools. |
| Databáze: | OpenAIRE |
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