Application of Raman spectroscopy and X-ray diffraction to study the erosion -corrosion of UNS S32205 in mine water

被引：4

作者：

Moloto, A. ^{[1
]}

Seshweni, M. H. E. ^{[1
]}

Aribo, S. ^{[1
]}

Falodun, O. E. ^{[1
]}

Olalemi, O. T. ^{[2
]}

Ige, O. O. ^{[1
,2
]}

Olubambi, P. A. ^{[1
]}

机构：

[1] Univ Johannesburg, Sch Min Met & Chem Engn, Ctr Nanoengn & Tribocorros, ZA-2094 Johannesburg, South Africa

[2] Obafemi Awolowo Univ, Dept Mat Sci & Engn, Ife, Osun State, Nigeria

来源：

MATERIALS TODAY-PROCEEDINGS | 2020年 / 28卷

关键词：

Erosion-corrosion; X-ray diffraction; Raman spectroscopy; Haematite; Duplex stainless steel (UNS 32205); MILD-STEEL; BEHAVIOR; PH;

D O I：

10.1016/j.matpr.2019.10.175

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corrosion products play a prominent role in reducing the degradation rate of materials in harsh environ- ments. In this work, the erosion -corrosion behaviour of duplex stainless steel (UNS S32205) in mine water, was characterised using X-ray diffraction and Raman spectrometry. The tests include erosion - corrosion in mine water and erosion in cathodically protected distilled water. X-ray diffraction and Raman spectroscopy were employed to confirm the presence of hydrolysed iron sulphate, chromium oxide, and hydrated iron oxides. The corrosion products were able to explain the effects of pH and flow velocity on the duplex stainless steel performance in the mine water environment. (C) 2019 Elsevier Ltd. All rights reserved. Selection and peer -review under responsibility of the scientific committee of the 2nd International Con- ference on Recent Advances in Materials & Manufacturing Technologies.

引用

页码：1273 / 1277

页数：5

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