Abstract
The adhesion is one of the important and basic properties in thermal spray coatings. The standard tensile test method "ISO 14916" is usually used to evaluate the adhesive strength of coatings. On the other hand, the indentation test method has some advantage to evaluate the interfacial fracture toughness as the adhesive strength from the following reasons; the specimen preparation and the specimen preparation are easy in comparison with the typical testing method. Collaborative research has been conducted by the committee on Standard development in Japan Thermal Spray Society to establish the standard test method which evaluates interfacial fracture toughness of thermal spray coatings by using a conventional Vickers indenter. This paper reports on differences among collaborators in round robin tests performed in this committee and discusses about the validity of the test method and test conditions through the results of round robin test and finite element analysis. Based on the results of the collaborative investigations, the constraints of test conditions were found to evaluate the interfacial fracture toughness by the indentation tests. Comparison among collaborators reveals that the interfacial fracture toughness can be obtained with small scattering from the indentation test under the constraints.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The Proceedings of the Materials and processing conference
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
