E. Gazenbiller, S. Mansoor, N. Konchakova, M. Serdechnova, C. Blawert, M. Zheludkevich, D. Höche
Magnesium (Mg) alloys are an attractive constructive material due to their light weight and high mechanical strength. Plasma electrolyte oxidation (PEO) treatment of Mg alloys creates a thin ceramic coating with protective effects against mechanical wear and corrosion. The coating properties like its porosity and thickness can be adjusted by PEO process parameters and at the same time affects the material behaviour under tensile strength. In this work, dedicated slow-strain rate experiments of differently PEO coated Mg alloy dog-bone shaped specimen were conducted and the coating porosity, thickness and crack spacing were analyzed in order to deduce a predictive Finite Element Method (FEM) damage model. The results indicate that the thicker, more porous coatings lead to material failure at smaller strains in plastic regions. The effect can be implemented via partial differential equation into the FEM model.
Keywords:
Published on 24/11/22Accepted on 24/11/22Submitted on 24/11/22
Volume Industrial Applications, 2022DOI: 10.23967/eccomas.2022.070Licence: CC BY-NC-SA license
Views 6Recommendations 0
Are you one of the authors of this document?