High Temperature Oxidation Process of P91 Steel in CO2 Atmosphere Containing SO2

• Autorzy: Kominko H. , Jaroń A.

Identyfikatory

DOI

10.24425/amm.2019.130132

• Języki publikacji: EN

Abstrakty

EN

In order to improve the efficiency of power generation system and reduce CO₂ emissions power plants work at high temperature and pressure. Under such conditions modified steel 9Cr, which fulfils the requirements concerning creep resistance, isused. However, Cr₂O₃ formed on the steel does not protect the construction material in the atmosphere which contains CO₂ and SO₂. The aim of the experiment was to study the behaviour of P91 steel in CO₂ atmosphere with the addition of 1% and 5 vol.% of SO₂ at different temperatures (700, 800 and 900°C). It was concluded that the corrosion rate of P91 steel is increasing with a rise in temperature. Scales formed in CO₂ atmosphere at 900°C contain a mixture of iron oxides in the outer layer and chromium-iron spinel in the inner layer. The FeS and Ni were found in the inner zone of scales formed in SO₂ atmosphere.

Słowa kluczowe

EN

CO2; scale; SO2; P91 steel; high temperature oxidation

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 4
• Strony: 1597--1602
• Opis fizyczny: Bibliogr. 21 poz., fot., rys., tab.

Twórcy

autor

Kominko H.

• Cracow University of Technology, Faculty of Chemical Engineering and Technology, 24 Warszawska Street, 31-155, Cracow, Poland

autor

Jaroń A.

• Cracow University of Technology, Faculty of Chemical Engineering and Technology, 24 Warszawska Street, 31-155, Cracow, Poland

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