Correlation between microstructure and long-term creep behaviour of 9% Cr steel P92 for advanced power plants.

• Autorzy: Zielinska-Lipiec A. , Ennis P.J. , Czyrska-Filemonowicz A.
• Konferencja: XV Physical Metallurgy and Materials Science Conference on Advanced Materials & Technologies, AMT'98, Kraków-Krynica 17-21May 1998, Poland
• Języki publikacji: EN

Abstrakty

EN

The microstructure and creep properties of the 9% Cr-0,5Mo-1,8W-V-Nb steel P92, a Japanese steel developed for advanced coal-fired power stations with operating steam temperatures around 600 degrees centigrade have been investigated. The study showed that the microstructural changes responsible for the decreasing creep rupture strength at temperatures 600 and 650 degrees centigrade were a marked decrease in dislocation density, an increase in subgrain size with continuous polygonization of the dislocation structure, and slight coarsening of the M23C6 and MX precipitates.

Słowa kluczowe

EN

microstructure; chromium steel; creep

PL

mikrostruktura; stal chromowa; pełzanie materiału

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 3
• Strony: 229--232
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Zielinska-Lipiec A.

• University of Mining and Metallurgy, Faculty of Metallurgy and Materials Science, Kraków, Poland

autor

Ennis P.J.

• Forschungszentrum Jülich GmbH, Germany

autor

Czyrska-Filemonowicz A.

• University of Mining and Metallurgy, Faculty of Metallurgy and Materials Science, Kraków, Poland

• University of Mining and Metallurgy, Faculty of Metallurgy and Materials Science, Kraków

Bibliografia

• [1] A.Zielinska-Lipiec, A. Czyrska-Filemonowicz, P.J.Ennis, O.Wachter, J.Materials Processing Technology, 64(1997) 397-405
• [2] P.J.Ennis, A.Zielinska-Lipiec, O.Wachter, A.Czyrska-Filemonowicz, Acta Materialia, 45(1997) 4901-4907
• [3] F.H. Norton, The creep of steel at the high tempratures, McGraw-Hill, New York, 1926