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Variations in erosive wear of metallic materials with temperature via the electron work function

Huang, Xiaochen ; Yu, Bin ; Yan, X.G. ; Li, D.Y.

Materials chemistry and physics, 2016-04, Vol.172, p.197-201 [Periódico revisado por pares]

Elsevier B.V

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  • Título:
    Variations in erosive wear of metallic materials with temperature via the electron work function
  • Autor: Huang, Xiaochen ; Yu, Bin ; Yan, X.G. ; Li, D.Y.
  • Assuntos: Alloys ; Design parameters ; Erosion ; Fermi surface ; Hardness ; Mathematical models ; Mechanical properties ; Metals ; Nickel ; Tribology ; Wear ; Work functions
  • É parte de: Materials chemistry and physics, 2016-04, Vol.172, p.197-201
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Mechanical properties of metals are intrinsically determined by their electron behavior, which is largely reflected by the electron work function (EWF or φ). Since the work function varies with temperature, the dependence of material properties on temperature could be predicted via variations in work function with temperature. Combining a hardness – φ relationship and the dependence of work function on temperature, a temperature-dependent model for predicting solid-particle erosion is proposed. Erosive wear losses of copper, nickel, and carbon steel as sample materials were measured at different temperatures. Results of the tests are consistent with the theoretical prediction. This study demonstrates a promising parameter, electron work function, for looking into fundamental aspects of wear phenomena, which would also help develop alternative methodologies for material design. [Display omitted] •Metallic materials' wear resistance is influenced by temperature.•Electron work function (EWF) intrinsically determines materials' wear resistance.•An EWF-based temperature-dependent solid-particle erosion model is proposed.
  • Editor: Elsevier B.V
  • Idioma: Inglês
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