Open this publication in new window or tab >>2009 (English)In: Proceedings of th 22nd Internationa Conference on Surface Modification technolgies - SMT22. Trollhättan, Sweden / [ed] T.S. Sudarshan & Per Nylen, VALAR Docs , 2009, p. 11-18Conference paper, Published paper (Refereed)
Abstract [en]
The tensile adhesion strength of thermally sprayed coating is conventionally evaluated via the ASTM C633-69 standard. The maximum measurable adhesion is then limited by the adhesion strength of the polymer media. High velocity oxy-fuel (HVOF) spraying can exhibit very high bonding strength and thus it is essential to develop an alternative method to evaluate coating adhesion strength. In this work a Modified Tensile Adhesion Test (MTAT) is proposed replacing gluing with induction brazing. The method was evaluated for HVOF sprayed Inconel 718 coatings deposited on Inconel 718 substrates. The effect of induction brazing process and the characteristics of the braze-coating interface was given particular interest. The results indicate that the method is superior to the ASTM C633-69 for characterisation of adhesion of coatings with high bond strength.
Place, publisher, year, edition, pages
VALAR Docs, 2009
Keywords
Thermal Spraying Process, Coating Adhesion Strength, HVOF, Inconel 718, Tensile Adhesion Test, ASTM C633-69, Induction Brazing, Bonding Mechanisms, Coating Thickness, Braze Joint Strength.
National Category
Production Engineering, Human Work Science and Ergonomics Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
urn:nbn:se:hv:diva-1728 (URN)978-0-9817065-1-1 (ISBN)
Conference
SMT22. Trollhättan, Sweden September 22-24 2008
2009-10-012009-10-012020-04-02Bibliographically approved