AL2O3-NI COMPOSITES FOR CUTTING TOOLS
Kamil Broniszewski, Jaroslaw Wozniak, Marek Kostecki, Kazimierz Czechowski, Lucyna Jaworska, Andrzej Olszyna
Pagini: 321-328
Publicat: 1 Jan 2013
Vizualizări: 247
Descărcări: 24
Rezumat: The main disadvantage of ceramic cutting tools is their low fracture toughness that leads to a chipping and cracking of ceramic edges during machining process. It is believed that addition of metal particles would increase the K ICparameter of ceramic matrix composites. In present work basic mechanical properties of Al2O3-x%wt.Ni composites were examined. A cutting tools life and surface roughness parameter were defined in dry machining of hardened steel tests. The possible reactions between cutting tool edge and machined material were also investigated as any chemical reaction can lead to increase of tools wear ratio. Density and porosity of produced composites were measured with the use of Archimedes method. Phase analysis was carried out on an X-ray diffractometer. The microstructure observation was performed on an optic microscope. Fracture toughness was measured with the use of the Vickers indentation method.
Cuvinte cheie: alumina, composites, cutting tools, nickel
Citează acest articol: Kamil Broniszewski, Jaroslaw Wozniak, Marek Kostecki, Kazimierz Czechowski, Lucyna Jaworska, Andrzej Olszyna. AL2O3-NI COMPOSITES FOR CUTTING TOOLS. Journal of International Scientific Publications: Materials, Methods & Technologies 7, 321-328 (2013). https://www.scientific-publications.net/en/article/1003063/
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