Effect of a Ni interlayer on microstructure and mechanical properties of WC-12Co cermet / SC45 steel friction stir welds
| Autor: | Roland Taillard, Hidetoshi Fujii, Toru Nagaoka, Marie-NoËlle Avettand-Fènoël |
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| Přispěvatelé: | Unité Matériaux et Transformations - UMR 8207 (UMET), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Institut National de la Recherche Agronomique (INRA), Institut de Chimie du CNRS (INC)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Ecole Nationale Supérieure de Chimie de Lille (ENSCL), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2019 |
| Předmět: |
Austenite
0209 industrial biotechnology Materials science Bainite Strategy and Management [CHIM.MATE]Chemical Sciences/Material chemistry 02 engineering and technology Welding Cermet Management Science and Operations Research 021001 nanoscience & nanotechnology Microstructure Industrial and Manufacturing Engineering law.invention 020901 industrial engineering & automation law Martensite Ferrite (iron) [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Pearlite Composite material 0210 nano-technology |
| Zdroj: | Journal of Manufacturing Processes Journal of Manufacturing Processes, Society of Manufacturing Engineers, 2019, Journal of Manufacturing Processes, 40, pp.1-15. ⟨10.1016/j.jmapro.2019.02.032⟩ Journal of Manufacturing Processes, 2019, Journal of Manufacturing Processes, 40, pp.1-15. ⟨10.1016/j.jmapro.2019.02.032⟩ |
| ISSN: | 1526-6125 |
| DOI: | 10.1016/j.jmapro.2019.02.032 |
| Popis: | WC-12Co cermet was friction stir lap welded with SC45 steel with or without different thicknesses of a Ni interlayer. The visualization of the material flow was rendered easy by the insertion of the Ni layer. Welding gives rise to the formation of Widmanstatten ferrite, low temperature pearlite, bainite, martensite and retained austenite in the nuggets of the joints. Some interdiffusion is noticed at the steel-cermet, steel-Ni and Ni-cermet interfaces, which leads, in particular, to the formation of oversaturated Co solid solutions in Fe or in Ni. The increase in the Ni interlayer thickness is shown to lead to a more pronounced wear of the Si3N4 tool and to a greater amount of retained austenite in the nugget. The mechanical tests finally suggest that the interface of the Ni bearing joints is of better quality than that of the Ni-free joint. |
| Databáze: | OpenAIRE |
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