Aluminum Oxide Ceramic Coatings on 316l Austenitic Steel Obtained by Plasma Electrolysis Oxidation Using a Pulsed Unipolar Power Supply

被引：19

作者：

Andrei, Victor Aurel ^{[1
,2
]}

Radulescu, Cristiana ^{[2
,3
]}

Malinovschi, Viorel ^{[4
]}

Marin, Alexandru ^{[5
]}

Coaca, Elisabeta ^{[5
]}

Mihalache, Maria ^{[5
]}

Mihailescu, Cristian Nicolae ^{[6
]}

Dulama, Ioana Daniela ^{[2
]}

Teodorescu, Sofia ^{[2
]}

Bucurica, Ioan Alin ^{[2
]}

机构：

[1] ELSSA Lab SRL, Pitesti 110109, Romania

[2] Valahia Univ Targoviste, Inst Multidisciplinary Res Sci & Technol, Targoviste 130004, Romania

[3] Valahia Univ Targoviste, Fac Sci & Arts, Targoviste 130004, Romania

[4] Univ Pitesti, Dept Environm Engn & Appl Engn Sci, Pitesti 110040, Romania

[5] Inst Nucl Res Pitesti, POB 78, Mioveni, Romania

[6] Natl Inst Lasers Plasma & Radiat Phys, Magurele 077125, Romania

来源：

COATINGS | 2020年 / 10卷 / 04期

关键词：

AISI; 316; steel; Al2O3; plasma electrolysis oxidation; X-ray photoelectron spectroscopy; scanning electron microscopy; X-ray diffraction; energy dispersive x-ray spectrometry; STAINLESS-STEEL; AISI; 316L; CORROSION-RESISTANCE; SURFACE; TEMPERATURE; WEAR; 304-STAINLESS-STEEL; BEHAVIOR; COOLANTS; ALLOY;

D O I：

10.3390/coatings10040318

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

AISI 316 steel has good corrosion behavior and high-temperature stability, but often prolonged exposure to temperatures close to 700 degrees C in aggressive environments (e.g., in boilers and furnaces, in nuclear installations) can cause problems that lead to accelerated corrosion degradation of steel components. A known solution is to prepare alumina ceramic coatings on the surface of stainless steel. The aim of this study is to obtain aluminum oxide ceramic coatings on 316L austenitic steel, by Plasma Electrolysis Oxidation (PEO), using a pulsed unipolar power supply. The structures obtained by PEO under various experimental conditions were characterized by XPS, SEM, XRD, and EDS analyses. The feasibility was proved of employing PEO in NaAlO2 aqueous solution using a pulsed unipolar power supply for ceramic-like aluminum oxide films preparation, with thicknesses in the range of 20-50 mu m, and a high content of Al2O3 on the surface of austenitic stainless steels.

引用

页数：16

共 15 条

[11] Study of ceramic-like aluminum oxide thin films developed using plasma electrolytic oxidation applied on austenitic steels
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[14] Evaluation of TiO2 coatings obtained using the sol-gel technique on surgical grade type 316L stainless steel in simulated body fluid
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[15] Mitigation of chloride driven stress corrosion cracking susceptibility of 316L austenitic stainless steel using plasma sprayed TiO2 coatingMinderung der Anfalligkeit fur chloridbedingte Spannungsrisskorrosion von austenitischem Edelstahl 316L durch plasmagespritzte TiO2-Beschichtung
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