High-Temperature Corrosion of NiCrAlY/YSZ Coatings in Ar-1%SO2 Gas

Poonam Yadav; Muhammad Ali Abro; Dong Bok Lee

doi:10.4028/www.scientific.net/MSF.844.3

Paper Titles

Preface

High-Temperature Corrosion of NiCrAlY/YSZ Coatings in Ar-1%SO₂ Gas
p.3

Corrosion-Mechanical Properties of Multifunctional Composition "Steel-Material with a Shape Memory Effect"
p.7

The Influence of Alloying Elements with Shape Memory Effect on Corrosion-Mechanical Properties of Welded Joints
p.13

Voltammetric and Chronopotentiometric Study of Nonstationary Processes at the Oxygen-Evolving Anodes in KF–NaF–AlF₃–Al₂O₃ Melt
p.19

Hydrogen Aggressive Media Impact on Cycling Durability of Structure Components
p.27

The Influence of Sodium Molybdate on the Rate of Corrosion of Aluminum in Phosphoric(V) Acid
p.31

Characteristics of the Al-Brasses Affected Corrosion Properties
p.38

The Effect of Corrosion in Hank's Solution on the Bending Stiffness of Bars from Sintered Iron-Manganese Alloys
p.46

HomeMaterials Science ForumMaterials Science Forum Vol. 844High-Temperature Corrosion of NiCrAlY/YSZ Coatings...

High-Temperature Corrosion of NiCrAlY/YSZ Coatings in Ar-1%SO₂ Gas

Abstract:

The thermal barrier coating that consisted of ZrO₂-8Y₂O₃ top-coat and Ni-22Cr-10Al-1Y bond-coat corroded in Ar-1%SO₂ gas at 1000-1200°C for up to 300 h. The top-coat and bond-coat consisted primarily of β-ZrO₂ and (γ-Ni, α-Al₂O₃), respectively. During corrosion, Al oxidized preferentially to α-Al₂O₃ to protect TBC, and sulfidation occurred to a small extent.