Multiple-Approach Evaluation of WSP Coatings Adhesion/Cohesion Strength

0392040 - ÚFP 2014 RIV US eng J - Journal Article
Mušálek, Radek - Pejchal, V. - Vilémová, Monika - Matějíček, Jiří
Multiple-Approach Evaluation of WSP Coatings Adhesion/Cohesion Strength.
Journal of Thermal Spray Technology. Roč. 22, 2-3 (2013), s. 221-232. ISSN 1059-9630. E-ISSN 1544-1016.
[International Thermal Spray Conference (ITSC). Houston, 21.05.2012-24.05.2012]
R&D Projects: GA ČR(CZ) GPP108/12/P552
Institutional research plan: CEZ:AV0Z20430508
Keywords : adhesion testing * adhesive strength * alumina * cohesion * stainless steel * water-stabilized plasma
Subject RIV: JI - Composite Materials
Impact factor: 1.491, year: 2013
http://link.springer.com/content/pdf/10.1007%2Fs11666-012-9850-2.pdf

Adhesion/cohesion testing represents one of the most common methods for benchmarking and optimization of thermal spray coatings. However, owing to the inhomogeneous coating microstructure, such testing may be quite troublesome. In this study, adhesion/cohesion strength of representative metallic and ceramic coatings deposited by water-stabilized plasma (WSP) spraying was evaluated by four different methods: tensile adhesion test, pin test, tubular coating tensile test, and shear test. Combination of various methods enabled the evaluation of the coating adhesion/cohesion strength under different loading conditions. Limitations and benefits of each method for testing of WSP coatings are demonstrated. Dominating failure micromechanisms were determined by supplementary fractographic analysis.
Permanent Link: http://hdl.handle.net/11104/0221026