Multiscaling of lattice curvature on friction surfaces of metallic materials as a basis of their wear mechanism

V. E. Panin, V. G. Pinchuk, S. V. Korotkevich, S. V. Panin

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A comprehensive structural study has been performed to explore deformation and wear debris formation on friction surfaces of metallic materials. A hierarchy of structural scales of plastic deformation and failure during wear has been established. The nanoscale plays the major role in the hierarchical self-organization of multiscale debris formation processes. On this scale, bifurcational interstitial states arise in zones of local lattice curvature, with plastic distortion and motion of nonequilibrium point defects which determine the nonlinear dynamics of structure formation and wear of surface layers. Nonequilibrium vacancies on lattice sites form microporosity through the coalescence mechanism under plastic distortion. The microporosity is a precursor of meso- and macroscale plastic shearing that defines wear debris formation.

Original languageEnglish
Pages (from-to)69-77
Number of pages9
JournalPhysical Mesomechanics
Volume20
Issue number1
DOIs
Publication statusPublished - 1 Jan 2017

Fingerprint

friction
curvature
debris
Debris
Wear of materials
Friction
microporosity
Microporosity
plastics
Plastics
Point defects
Coalescence
shearing
Shearing
Crystal lattices
point defects
coalescing
plastic deformation
Vacancies
hierarchies

Keywords

  • friction
  • lattice curvature
  • multiscaling
  • plastic distortion
  • wear
  • wear debris

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces

Cite this

Multiscaling of lattice curvature on friction surfaces of metallic materials as a basis of their wear mechanism. / Panin, V. E.; Pinchuk, V. G.; Korotkevich, S. V.; Panin, S. V.

In: Physical Mesomechanics, Vol. 20, No. 1, 01.01.2017, p. 69-77.

Research output: Contribution to journalArticle

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