CeO2 based coating for high temperature oxidation protection

被引：3

作者：

Ghosh, D. ^{[1
]}

Mukherjee, S. K. ^{[2
]}

Das, S. ^{[1
]}

Mitra, S. K. ^{[3
]}

机构：

[1] CMERI, NDT & Met Grp, Durgapur 713209, India

[2] Natl Inst Technol, Durgapur 713209, India

[3] Natl Inst Technol, Met & Mat Engn Dept, Durgapur 713209, India

来源：

SURFACE ENGINEERING | 2015年 / 31卷 / 05期

关键词：

Cr-Mo steel; Ceria (CeO2); Coating; Oxidation; CORROSION BEHAVIOR; REACTIVE ELEMENTS; IMPROVEMENT; ALLOYS; CR;

D O I：

10.1179/1743294414Y.0000000356

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper investigates the influence of ceria (CeO2) coating on high temperature oxidation behaviour of 2.25Cr-1Mo steel. The superficial coating of CeO2 powder was prepared for experimental investigation. The isothermal corrosion study of uncoated and coated specimens was carried out in air oxidation environment at 973 K for 8 h. The corrosion rate and reaction kinetics were studied and the post corroded scales were characterised in scanning electron microscope, energy dispersive X-ray spectroscopy and X-ray diffraction. The results clearly indicate that CeO2 coated specimen improves the high temperature oxidation resistance than uncoated specimen. The improvement of oxidation resistance in presence of CeO2 coating can be attributed to the formation of fine grained oxide on the scale, changed mechanism of scale growth from outer cation migration to inner anion migration and enhancement of scale adhesion with the substrate. The detail mechanism of the oxidation of CeO2 coated and uncoated specimen was further discussed in this paper.

引用

页码：323 / 328

页数：6

共 22 条

[1] Bannett M.J., 1989, ROLE ACTIVE ELEMENTS, P111
[2] Effects of ceria coatings on pure iron oxidation. Comparison with extra low carbon steels
Buscail, H
Courty, C
Larpin, JP
[J]. JOURNAL DE PHYSIQUE IV, 1995, 5 (C7): : 375 - 380
[3] High temperature oxidation behaviour of yttria ( Y2O3) coated low alloy steel
Ghosh, D.
Mukherjee, S.
Das, S.
[J]. SURFACE ENGINEERING, 2014, 30 (07) : 524 - 528
[4] Effect of ceria coating on corrosion behaviour of low alloy steel
Ghosh, D.
Shukla, A. K.
Mitra, S. K.
[J]. SURFACE ENGINEERING, 2013, 29 (08) : 584 - 587
[5] Ghosh D, 2011, HIGH TEMP MAT PROCES, V28, P109
[6] Ghosh D, 2012, J I ENG INDIA D, V93, P59
[7] High Temperature Corrosion Problem of Boiler Components in presence of Sulfur and Alkali based Fuels
Ghosh, Debashis
Mitra, Swapan Kumar
[J]. HIGH TEMPERATURE MATERIALS AND PROCESSES, 2011, 30 (1-2) : 81 - 85
[8] Influence of CeO2 Superficial Coating on the High Temperature Corrosion Behavior of 2.25 Cr-1 Mo Steel in SO2 + O2 atmospheres
Ghosha, D.
Shukla, A. K.
Mitra, S. K.
[J]. PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES, 2013, 49 (06) : 749 - 752
[9] Economical deposition of Ni high cerium oxide nanocomposite coatings
Hasannejad, H.
Shahrabi, T.
[J]. SURFACE ENGINEERING, 2012, 28 (06) : 418 - 423
[10] THE EFFECT OF REACTIVE ELEMENT COATINGS ON THE OXIDATION BEHAVIOR OF PURE CR AND HIGH CR CONTENT ALLOYS AT 900-DEGREES-C
HUSSEY, RJ
SPROULE, GI
GRAHAM, MJ
[J]. JOURNAL DE PHYSIQUE IV, 1993, 3 (C9): : 241 - 246

← 1 2 3 →