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Application of Submicromechanical Diagnostics for Characterization of Glass-Filled Polyamide Composites

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Abstract—

The tribomechanical properties of PA6-L-SV30-1 polyamide composites dispersed dopped glass fibers, which are promising for the manufacture of metal–polymer bearings, gears, and other products, have been studied. The characteristics of their wear resistance under conditions of sliding friction without lubrication are determined depending on the specific loads, at a certain sliding speed and test time. The absolute values of the micromechanical characteristics of the surface layer important for tribomaterial science before and after friction are given: the work of elastic Ael and plastic Apl deformation, relaxation ability, plasticity coefficient, Young’s modulus, microhardness HV at a given penetration depth of the indenter and the microstructure of the scratch-tested layer. Diagrams of changes in loads, kinetic diagrams of microindentation are constructed, the nature of the change in the penetration depth of Pd and the recovery of Rd of the indenter during scratch testing of polyamide composites is illustrated. The scientifical significance of the suggested approach consists in triboanalysis carried out on two (macroscopic and microscopic) scale levels allowing to obtain new data about the stability of the structure and properties of subsurface layers of tribopairs. Its practical significance specifies the possibility of development refined engineering methods of calculation of stress-strain state, strength, contact stiffness, wear resistance, and durability of tribojoints made of composite materials.

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Funding

The research was financed by project Regional Excellence Initiative of Lublin University of Technology, funded by the Polish Ministry of Science and Higher Education (Contract no. 030/RID/2018/19); Scientific Research Theme Development of Methods for Strength Analysis and Computer Design of the Structure of Polymer and Elastomer Composites for Structural Elements and Contact Interfaces on Project 4.2.3 of the SPSR Materials Science, New Materials and Technologies and Project T21ET-016 Structural Optimization of Hybrid Fiber-Reinforced Composite Materials for Safe and Reliable Electric Transport of BRFFR.

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Authors and Affiliations

  1. Politechnika Lubelska, 20-618, Lublin, Poland

    M. Pashechko, J. Borc & Ya. Chabanyuk

  2. V.A. Belyi Metal–Polymer Research Institute, National Academy of Sciences of Belarus, 246050, Gomel, Belarus

    S. Shil’ko

  3. National Aviation University, 03056, Kyiv, Ukraine

    M. Czerniec

Authors
  1. M. Pashechko
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  2. S. Shil’ko
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  3. M. Czerniec
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  4. J. Borc
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  5. Ya. Chabanyuk
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Correspondence to M. Pashechko.

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Translated by K. Gumerov

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Pashechko, M., Shil’ko, S., Czerniec, M. et al. Application of Submicromechanical Diagnostics for Characterization of Glass-Filled Polyamide Composites. J. Frict. Wear 43, 293–299 (2022). https://doi.org/10.3103/S1068366622050087

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  • DOI: https://doi.org/10.3103/S1068366622050087

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