Evaluation of the Mechanical Properties of Naturally Grown Multilayered Oxides Formed on HCM12A Using Small Scale Mechanical Testing

M. D. Abad, S. Parker, D. Frazer, M. Rebelo de Figueiredo, A. Lupinacci, K. Kikuchi, P. Hosemann

Research output: Indexed journal article Articlepeer-review

18 Citations (Scopus)

Abstract

The microstructure and mechanical integrity of protective multilayered oxide films grown in liquid metal on F/M steel HCM12A was investigated utilizing Raman spectroscopy, nanoindentation and micro-cantilever testing methods. The Raman spectra showed a Fe3O4 outer layer and a Cr-rich spinel structure inner layer. The nanoindentation results showed a higher hardness value for the inner layer than for the outer layer. In addition, the hardness of the diffusion layer in between the inner layer and the bulk steel was measured. Quantitative fracture properties were obtained of the steel/oxide interface and within the oxide layers utilizing micro-cantilever testing. Furthermore the strength and elastic properties of the multilayered oxide film were measured and it was found that the porous structure in the inner Fe–Cr oxide limits the integrity of the steel/oxide interface.

Original languageEnglish
Pages (from-to)211-231
Number of pages21
JournalOxidation of Metals
Volume84
Issue number1-2
DOIs
Publication statusPublished - 7 Jun 2015
Externally publishedYes

Keywords

  • Fracture toughness
  • Micro-cantilever
  • Nanoindentation
  • Oxide coatings
  • Raman

Fingerprint

Dive into the research topics of 'Evaluation of the Mechanical Properties of Naturally Grown Multilayered Oxides Formed on HCM12A Using Small Scale Mechanical Testing'. Together they form a unique fingerprint.

Cite this