Channeled local structural transformations in polycrystal surface layers in alternate cyclic bending

V. E. Panin, T. F. Elsukova, Yu F. Popkova

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The paper presents experimental data on the stage evolution of channeled local structural transformations in the direction of maximum tangential stress in polycrystal surface layers under cyclic loading. At the first loading stage, islands of surface layers are extruded; at the second loading stage, they coagulate into folded structures. The geometric parameters of the folded structures correlate with the stacking fault energy of the material. The obtained results support the concept of physical mesomechanics about a chessboard distribution of tensile and compressive normal stresses at the " weakened surface layer - crystalline substrate" interface.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalPhysical Mesomechanics
Volume14
Issue number1-2
DOIs
Publication statusPublished - 2011

Fingerprint

Polycrystals
polycrystals
surface layers
stacking fault energy
Stacking faults
Crystalline materials
Substrates

Keywords

  • Channeling
  • Chessboard effect at the "surface layer-ubstrate" interface
  • Extrusion
  • Structural-scale levels of deformation
  • Surface layers

ASJC Scopus subject areas

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

Cite this

Channeled local structural transformations in polycrystal surface layers in alternate cyclic bending. / Panin, V. E.; Elsukova, T. F.; Popkova, Yu F.

In: Physical Mesomechanics, Vol. 14, No. 1-2, 2011, p. 1-9.

Research output: Contribution to journalArticle

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