Determination of the Elastic Modulus of the Coating Using a Spherical Indenter
Main Article Content
Abstract
In this work, we investigate the nanoindentation of the surface of powder paint and varnish coatings on an epoxy-polyester base, applied to steel substrates. The study of the influence of the test method on the identified mechanical properties has been carried out. A comparison is made of the measurement results obtained using a spherical indenter and a Berkovich indenter. Estimates of the reduced modulus of elasticity, Young's modulus and hardness of coatings are obtained. The obtained experimental data indicate a significant dependence of the determined mechanical properties of paint and varnish coatings depending on the type of indenter used. In the case of using the Berkovich indenter, the found Young's modulus of the coatings (0,6 GPa) turns out to be underestimated in relation to the properties of coatings known from macro experiments (3 GPa). When using a spherical indenter, Young's modulus turns out to be overestimated (6,3 GPa).
Downloads
Metrics
Article Details
Licensing
TURCOMAT publishes articles under the Creative Commons Attribution 4.0 International License (CC BY 4.0). This licensing allows for any use of the work, provided the original author(s) and source are credited, thereby facilitating the free exchange and use of research for the advancement of knowledge.
Detailed Licensing Terms
Attribution (BY): Users must give appropriate credit, provide a link to the license, and indicate if changes were made. Users may do so in any reasonable manner, but not in any way that suggests the licensor endorses them or their use.
No Additional Restrictions: Users may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.