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Influence of Substrate Type Made of WC-Co on CrN/CrAlN Coatings’ Durability During Machining of Particleboard

Guardado en:
Udgivet i:Journal of Manufacturing and Materials Processing vol. 9, no. 11 (2025), p. 349-367
Hovedforfatter: Czarniak Paweł
Andre forfattere: Kucharska Beata, Szymanowski Karol, Nouveau Corinne, Lagadrillere Denis, Betiuk Marek, Rygier Tomasz, Kulikowski Krzysztof, Kusznierewicz Zbigniew, Sobiecki, Jerzy Robert
Udgivet:
MDPI AG
Fag:
Mechanical properties
Cemented carbides
Coatings
Tribology
Oxidation
Substrates
Multilayers
Carbide tools
Grain size
Tungsten carbide
Machining
Scratch resistance
Machine tools
Nanohardness
Durability
Particle board
Chemical composition
Cobalt
Bilayers
Nitrogen
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Resumen:This paper investigates the influence of substrate grain size on the behavior of a multilayer CrN/CrAlN coating, with the bilayer thickness varying across the cross-section in the range of 200–1000 nm. The substrate tools were made of WC-Co sintered carbide with three different grain sizes. The coatings were subjected to mechanical and tribological tests to assess their performance, including nanohardness, scratch resistance, and tribological testing. The coating’s roughness was measured using a 2D profilometer. Additionally, the chemical composition and surface morphology were analyzed using Scanning Electron Microscopy (SEM) and Energy Dispersive X-Ray Spectroscopy (EDX). The durability tests were performed on an industrial CNC machine tool on the particleboard. The results revealed that tools with ultra-fine nano-grain (S) and micro-grain (T) WC-Co substrates exhibited a significant increase in tool durability by 28% and 44%, respectively. Significant differences in the microgeometry of the substrate U, especially in relation to the tool based on substrate S, explain the lack of improvement in its durability despite the use of a multilayer coating.
ISSN:2504-4494
DOI:10.3390/jmmp9110349
Fuente:ABI/INFORM Global