Surface characterisation and corrosion behaviour of oxide layer for SLMed-316L stainless steel

W. S.W. Harun, R. I.M. Asri, F. R.M. Romlay, S. Sharif, N. H.M. Jan, Fujio Tsumori

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)

抄録

The stable oxide layer formed through thermal oxidation (TO) process on selective laser melted 316 L stainless steel (SLMed-316 L SS) substrate surface attested to assists in refining their corrosion resistance and observed to behave relatively inert in physiological conditions. The surface characterisation and corrosion behaviour of the oxidised SLMed-316 L SS are the primary focus of this study. The formation of the oxide layer on SLMed-316 L SS was investigated at constant ambient atmosphere and 700 °C temperature for three different soaking times (150, 200 and 250 h). The surface characterisation of the oxide layer was performed using Field Emission Scanning Electron Microscope (FESEM), Energy Dispersive X-ray Spectroscopy (EDX) and X-ray Diffraction (XRD) to correlate the thickness of oxide layer and surface morphology after the TO treatment. Whereas, the electrochemical analysis was conducted using potentiodynamic polarisation to investigate the corrosion behaviour of the oxide layer. The finding disclosed an increase in the oxide layer thickness formation at prolonged exposure in ambient atmosphere. Also, the TO at 150 h showed an improved corrosion behaviour due to the presence of Fe2O3 and Cr2O3 layers. However, the extended soaking time showed no improvement towards the corrosion behaviour.

元の言語英語
ページ(範囲)1044-1052
ページ数9
ジャーナルJournal of Alloys and Compounds
748
DOI
出版物ステータス出版済み - 6 5 2018

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Stainless Steel
Oxides
Stainless steel
Corrosion
Oxidation
Potentiodynamic polarization
Field emission
Refining
Surface morphology
Corrosion resistance
Electron microscopes
Scanning
X ray diffraction
Lasers
Substrates
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

これを引用

Surface characterisation and corrosion behaviour of oxide layer for SLMed-316L stainless steel. / Harun, W. S.W.; Asri, R. I.M.; Romlay, F. R.M.; Sharif, S.; Jan, N. H.M.; Tsumori, Fujio.

:: Journal of Alloys and Compounds, 巻 748, 05.06.2018, p. 1044-1052.

研究成果: ジャーナルへの寄稿記事

Harun, W. S.W. ; Asri, R. I.M. ; Romlay, F. R.M. ; Sharif, S. ; Jan, N. H.M. ; Tsumori, Fujio. / Surface characterisation and corrosion behaviour of oxide layer for SLMed-316L stainless steel. :: Journal of Alloys and Compounds. 2018 ; 巻 748. pp. 1044-1052.
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abstract = "The stable oxide layer formed through thermal oxidation (TO) process on selective laser melted 316 L stainless steel (SLMed-316 L SS) substrate surface attested to assists in refining their corrosion resistance and observed to behave relatively inert in physiological conditions. The surface characterisation and corrosion behaviour of the oxidised SLMed-316 L SS are the primary focus of this study. The formation of the oxide layer on SLMed-316 L SS was investigated at constant ambient atmosphere and 700 °C temperature for three different soaking times (150, 200 and 250 h). The surface characterisation of the oxide layer was performed using Field Emission Scanning Electron Microscope (FESEM), Energy Dispersive X-ray Spectroscopy (EDX) and X-ray Diffraction (XRD) to correlate the thickness of oxide layer and surface morphology after the TO treatment. Whereas, the electrochemical analysis was conducted using potentiodynamic polarisation to investigate the corrosion behaviour of the oxide layer. The finding disclosed an increase in the oxide layer thickness formation at prolonged exposure in ambient atmosphere. Also, the TO at 150 h showed an improved corrosion behaviour due to the presence of Fe2O3 and Cr2O3 layers. However, the extended soaking time showed no improvement towards the corrosion behaviour.",
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AU - Asri, R. I.M.

AU - Romlay, F. R.M.

AU - Sharif, S.

AU - Jan, N. H.M.

AU - Tsumori, Fujio

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