Determination of the Optimal Parameters of the Structure of Functional Gradient Materials using Mathematical Modelling Approaches
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
International OCSCO World Press, Poland
Abstract
EN: Abstract. Purpose: Functioning of mechanical friction systems largely depends on the characteristics
of the structure of their surface layers. By controlling these parameters, it is possible to
significantly adjust the reliability and durability of parts under the conditions of contact
interaction.
Design/methodology/approach: he proposed approach, which is based on the principle
of nonlocality of the operational properties of materials, allows determining the optimal
microhardness values of the surface layers and the gradient of this parameter, at which the
contact durability of friction pair elements significantly increases.
Findings: It is established that by adjusting the ratios of the surface strength of materials
and its gradient, it is possible to achieve a significant increase in the operational parameters
of friction units.
Practical implications: The engineering relationship considered in the work allows to
establish functional distributions of microhardness in the structure of surface layers, at which
their wear reaches minimum values.
Originality/value: Mathematical approaches are proposed, which allow determining the
parameters of the structure of the surface layers of parts to increase their durability under
conditions of friction contact loads.
Description
O. Kuzin: ORCID 0000-0003-3669-0237,
M. Kuzin: ORCID 0000-0002-6032-4598
Keywords
functional gradient materials, microhardness, wear, optimal structure of tribosystem’s material, КРС (ЛФ)
Citation
Lyashenko B. A., Stotsko Z. A., Kuzin O. A., Kuzin M. O., Mikosianchyk O. A. Determination of the Optimal Parameters of the Structure of Functional Gradient Materials using Mathematical Modelling Approaches. Journal of Achievements in Materials and Manufacturing Engineering. 2019. Vol. 92, iss. 1/2. P. 13–18. DOI: 10.5604/01.3001.0013.3183.