Journal
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
Volume 5, Issue 4, Pages 513-534Publisher
SPRINGER
DOI: 10.1007/s11998-008-9106-8
Keywords
HVOF coating; Vickers indentation; Crack; Fracture; FEA; Stress
Funding
- Natural Science & Engineering Research Council of Canada (NSERC)
- National Research Council Canada
- Deloro Stellite Inc
Ask authors/readers for more resources
The fracture strength of five HVOF coatings, which are made of hard metals, Tribaloy alloy, and superalloys, respectively, coated on 1018 low carbon steel substrate, is studied under Vickers indentation, associated with FEA stress computation. The cross sections of the coating specimens are examined on a Hitachi Model S-570 scanning electron microscope (SEM), which investigates the quality and measures the geometry of the coatings. The mechanical properties of the coatings and the substrate are determined in the cross sections using the nano-indentation technique. The cracking behavior of the coatings under different indentation loads is investigated using a Vickers hardness tester. Three-dimensional finite element analysis (FEA) simulation of the Vickers indentation test is conducted to determine the stress fields in the coating/substrate systems in order to understand the fracture mechanisms of the coatings under the indentation loads using the ABAQUS software package. The FEA stress results are in good agreement with the experimental observation of Vickers indentation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available