Structure and properties of selected cemented carbides and cermets covered with TiN/(Ti,Al,Si)N/TiN coatings obtained by the cathodic arc evaporation process
Document title: Structure and properties of selected cemented carbides and cermets covered with TiN/(Ti,Al,Si)N/TiN coatings obtained by the cathodic arc evaporation process
Journal: Materials research
Database: PERIÓDICA
System number: 000312862
ISSN: 1516-1439
Authors: 1
Institutions: 1Silesian University of Technology, Institute of Engineering Materials and Biomaterials, Gliwice. Polonia
Year:
Season: Abr-Jun
Volumen: 8
Number: 2
Pages: 113-116
Country: Brasil
Language: Inglés
Document type: Nota breve o noticia
Approach: Experimental
English abstract This study presents the results of microstructural examinations, mechanical tests and service performance tests carried out on thin TiN/(Ti,Al,Si)N/TiN wear resistance coatings obtained by the CAE process on cermet and cemented carbide substrates. Microstructural examinations of the applied coatings and the substrate were made with an OPTON DSM 940 SEM and a LEICA MEF4A light microscope. Adhesion of the coatings on cemented carbides and cermets was measured using the scratch test. The cutting properties of the materials were determined from service tests in which continuous machining of C45E steel was carried out. The hardness of the substrate and the microhardness of the coatings were determined with a DUH 202 SHIMADZU ultra microhardness tester with a load of 70 mN. Roughness tests were also carried out before applying the coatings and after the PVD process. Cutting tests confirmed the advantages of the TiN/(Ti,Al,Si)N/TiN type coatings obtained using the PVD method in the CAE mode on cemented carbides and cermets, as a material that undergoes very low abrasive, thermal and adhesion wear. These coatings extend tool life compared to commercially available uncoated tools with single and multi-layer coatings deposited using PVD/CVD methods
Disciplines: Ingeniería,
Física y astronomía
Keyword: Ingeniería de materiales,
Ingeniería mecánica,
Mecánica, elasticidad y reología,
Carburos,
Microestructuras,
Revestimientos,
Deposición física de vapor,
Propiedades mecánicas
Keyword: Engineering,
Physics and astronomy,
Materials engineering,
Mechanical engineering,
Mechanics, elasticity and rheology,
Carbides,
Microstructures,
Coatings,
Physical vapor deposition,
Mechanical properties
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