The optimal formation condition of chromium oxide thin film on stainless-steel surface

Sangwoon Moon; Boklae Cho; Sukmin Chung; Chongdo Park; Kijeong Kim; Taihee Kang; Bongsoo Kim

doi:10.1142/S0218625X02002208

The optimal formation condition of chromium oxide thin film on stainless-steel surface

Sangwoon Moon^*
, Boklae Cho
, Sukmin Chung
, Chongdo Park
, Kijeong Kim
, Taihee Kang
, Bongsoo Kim

^*Corresponding author for this work

Department of Physics

Pohang University of Science and Technology

Research output: Contribution to journal › Journal article › peer-review

3 Scopus citations

Abstract

We investigated the various oxidation conditions of stainless-steel surface using synchrotron radiation photoemission spectroscopy. Stainless-steel samples are oxidized at 450-550°C in various oxygen partial pressures. Increasing the annealing temperature from 450°C to 550°C, the trivalent chromium concentration in the surface increased and iron oxides decreased. The PES spectra from stainless steels oxidized at 550°C show that there exists the critical oxygen partial pressure, P′_c ∼ 5 × 10^-7 Torr. Below this critical pressure, the oxide formed mainly consists of chromium oxide, while the oxide formed mainly consists of iron oxide above the critical pressure. The oxidation behavior is in good agreement with the Ellingham diagram (a free-energy/temperature diagram).

Original language	English
Pages (from-to)	285-291
Number of pages	7
Journal	Surface Review and Letters
Volume	9
Issue number	1
DOIs	https://doi.org/10.1142/S0218625X02002208
State	Published - 2002.02

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title = "The optimal formation condition of chromium oxide thin film on stainless-steel surface",

abstract = "We investigated the various oxidation conditions of stainless-steel surface using synchrotron radiation photoemission spectroscopy. Stainless-steel samples are oxidized at 450-550°C in various oxygen partial pressures. Increasing the annealing temperature from 450°C to 550°C, the trivalent chromium concentration in the surface increased and iron oxides decreased. The PES spectra from stainless steels oxidized at 550°C show that there exists the critical oxygen partial pressure, P′c ∼ 5 × 10-7 Torr. Below this critical pressure, the oxide formed mainly consists of chromium oxide, while the oxide formed mainly consists of iron oxide above the critical pressure. The oxidation behavior is in good agreement with the Ellingham diagram (a free-energy/temperature diagram).",

author = "Sangwoon Moon and Boklae Cho and Sukmin Chung and Chongdo Park and Kijeong Kim and Taihee Kang and Bongsoo Kim",

year = "2002",

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T1 - The optimal formation condition of chromium oxide thin film on stainless-steel surface

AU - Moon, Sangwoon

AU - Cho, Boklae

AU - Chung, Sukmin

AU - Park, Chongdo

AU - Kim, Kijeong

AU - Kang, Taihee

AU - Kim, Bongsoo

PY - 2002/2

Y1 - 2002/2

N2 - We investigated the various oxidation conditions of stainless-steel surface using synchrotron radiation photoemission spectroscopy. Stainless-steel samples are oxidized at 450-550°C in various oxygen partial pressures. Increasing the annealing temperature from 450°C to 550°C, the trivalent chromium concentration in the surface increased and iron oxides decreased. The PES spectra from stainless steels oxidized at 550°C show that there exists the critical oxygen partial pressure, P′c ∼ 5 × 10-7 Torr. Below this critical pressure, the oxide formed mainly consists of chromium oxide, while the oxide formed mainly consists of iron oxide above the critical pressure. The oxidation behavior is in good agreement with the Ellingham diagram (a free-energy/temperature diagram).

AB - We investigated the various oxidation conditions of stainless-steel surface using synchrotron radiation photoemission spectroscopy. Stainless-steel samples are oxidized at 450-550°C in various oxygen partial pressures. Increasing the annealing temperature from 450°C to 550°C, the trivalent chromium concentration in the surface increased and iron oxides decreased. The PES spectra from stainless steels oxidized at 550°C show that there exists the critical oxygen partial pressure, P′c ∼ 5 × 10-7 Torr. Below this critical pressure, the oxide formed mainly consists of chromium oxide, while the oxide formed mainly consists of iron oxide above the critical pressure. The oxidation behavior is in good agreement with the Ellingham diagram (a free-energy/temperature diagram).

UR - https://www.scopus.com/pages/publications/0036463109

U2 - 10.1142/S0218625X02002208

DO - 10.1142/S0218625X02002208

M3 - Journal article

AN - SCOPUS:0036463109

SN - 0218-625X

VL - 9

SP - 285

EP - 291

JO - Surface Review and Letters

JF - Surface Review and Letters

IS - 1

ER -

The optimal formation condition of chromium oxide thin film on stainless-steel surface

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