Finite element modeling of the nanoindentation of layers of porous oxide on high speed steel

Wan Fathul Hakim W. Zamri, P. Buyung Kosasih, A. Kiet Tieu, Hongtao Zhu, Qiang Zhu

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Oxide layer on the surface of a high speed steel (HSS) hot work roll can act as a protective layer and affects the wear and friction between the strip and the roll. In the numerical design of a work roll, it is necessary to understand the mechanical properties of these oxide layers. This paper describes a combined FE simulations and nanoindentation experiments to obtain the depth dependent mechanical properties of oxide layers on HSS. The mechanical properties of this layer, including the elastic modulus, yield strength, Poisson's ratio and porosity, are inferred from the input parameters to the FE simulations after the simulated load-displacement curves match the experimental curves to within a specified tolerance. The results showed that the outer layer has a higher modulus and higher hardness than the inner layer. The interaction between the mechanical properties and nanoindentation parameters such as the maximum load and unloading slope of the load-displacement curves were established via multiple regression analysis. The maximum load and slope of the load-displacement were strongly correlated with the elastic modulus and yield strength whilst the relationship between porosity and Poisson's ratio is relatively weak. This paper describes a combined FE simulations and nanoindentation experiments to obtain the depth dependent mechanical properties of oxide layers on high speed steels (HSS). The interaction between the mechanical properties and nanoindentation parameters such as the maximum load and unloading slope of the load-displacement curves are established via multiple regression analysis.

Original languageEnglish
Pages (from-to)1309-1319
Number of pages11
JournalSteel Research International
Volume84
Issue number12
DOIs
Publication statusPublished - Dec 2013

Fingerprint

Steel
Nanoindentation
nanoindentation
Oxides
high speed
steels
Mechanical properties
oxides
mechanical properties
Poisson ratio
Unloading
Regression analysis
Yield stress
unloading
curves
yield strength
slopes
Porosity
Elastic moduli
regression analysis

Keywords

  • finite element method
  • high speed steel
  • hot roll
  • multiple regression
  • oxide scale

ASJC Scopus subject areas

  • Materials Chemistry
  • Metals and Alloys
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

Finite element modeling of the nanoindentation of layers of porous oxide on high speed steel. / W. Zamri, Wan Fathul Hakim; Kosasih, P. Buyung; Tieu, A. Kiet; Zhu, Hongtao; Zhu, Qiang.

In: Steel Research International, Vol. 84, No. 12, 12.2013, p. 1309-1319.

Research output: Contribution to journalArticle

W. Zamri, Wan Fathul Hakim ; Kosasih, P. Buyung ; Tieu, A. Kiet ; Zhu, Hongtao ; Zhu, Qiang. / Finite element modeling of the nanoindentation of layers of porous oxide on high speed steel. In: Steel Research International. 2013 ; Vol. 84, No. 12. pp. 1309-1319.
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