<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The multi-objective optimization procedure of geometry of TiAlN/TiN/Cr multilayer coatings was created. The procedure was applied to the multilayer coatings subjected to constant tangential and normal loads (Hertzian contact). In physical model Cr, TiN and TiAlN layers were treated as a continuous medium, thus in mathematical description of the stress and strain states in the coatings a classical theory of stiffness was used. Decisional variables used in procedure were thicknesses of Cr, TiN and TiAlN layers and decisional criteria were functions of the stress and strain fields in the coating and substrate. Using created optimization procedure, Pareto set of optimal values of layers' thicknesses were determined. Additionally, two methods of analysis of Pareto-optimal set were introduced and discussed.</p></abstract>

The multi-objective optimization procedure of geometry of TiAlN/TiN/Cr multilayer coatings was created. The procedure was applied to the multilayer coatings subjected to constant tangential and normal loads (Hertzian contact). In physical model Cr, TiN and TiAlN layers were treated as a continuous medium, thus in mathematical description of the stress and strain states in the coatings a classical theory of stiffness was used. Decisional variables used in procedure were thicknesses of Cr, TiN and TiAlN layers and decisional criteria were functions of the stress and strain fields in the coating and substrate. Using created optimization procedure, Pareto set of optimal values of layers' thicknesses were determined. Additionally, two methods of analysis of Pareto-optimal set were introduced and discussed.

Pareto Optimal Multi-Objective Optimization of Antiwear Tialn/Tin/Cr Coatings

Koszalin University of Technology, Institute of Technology and Education, Department of Materials and Processes Design,75-453 Koszalin, Poland

Advances in Materials Science

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

{"article-title":"Pareto Optimal Multi-Objective Optimization of Antiwear Tialn/Tin/Cr Coatings"}

The multi-objective optimization procedure of geometry of TiAlN/TiN/Cr multilayer coatings was created. The procedure was applied to the multilayer coatings...

Pareto Optimal Multi-Objective Optimization of Antiwear Tialn/Tin/Cr Coatings

Published Online: Apr 25, 2014

Page range: 5 - 13

DOI: https://doi.org/10.2478/adms-2014-0001

Keywords
multi-objective optimization, multilayer coatings, internal stress, Pareto sets

© by Ł. Szparaga

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Pareto Optimal Multi-Objective Optimization of Antiwear Tialn/Tin/Cr Coatings

Published Online: Apr 25, 2014

Page range: 5 - 13

DOI: https://doi.org/10.2478/adms-2014-0001

Keywordsmulti-objective optimization, multilayer coatings, internal stress, Pareto sets

© by Ł. Szparaga

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Keywords
multi-objective optimization, multilayer coatings, internal stress, Pareto sets