Microstructural evolution and creep behaviour of the modified 9% Cr steel with boron and cobalt.

• Autorzy: Nowakowski P. , Spiradek-Hahn K. , Brabetz M. , Zeiler G.
• 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

In the present study the microstructural evolution of the new 9% Cr steel with boron and cobalt is shown during creep at 650 degrees centigrade. The minimum creep rates of the new alloy are significantly lower than those of the conventional 12%Cr steel. This is due to the high stability of M23C6 precipitates with respect to the coarsening and the preservation of high dislocation density in the course of creep exposure.

Słowa kluczowe

EN

microstructure; chromium steel; boron; cobalt; creep

PL

mikrostruktura; stal chromowa; bor; kobalt; pełzanie materiału

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 3
• Strony: 225--228
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Nowakowski P.

• Austrian Research Centres Seibersdorf GmbH, Austria

autor

Spiradek-Hahn K.

• Austrian Research Centres Seibersdorf GmbH, Austria

autor

Brabetz M.

• Austrian Research Centres Seibersdorf GmbH, Austria

autor

Zeiler G.

• Böhler Edelstahl GmbH, Austria

• Austrian Research Centres Seibersdorf GmbH, Austria

Bibliografia

• [1] Lundin, L., High resolution Microanalysis of Creep Resistant 9-12% Chromium Steels, PhD, Göteborg, 1995
• [2] Spiradek K., Bauer, R, Zeiler, G., Fifth Conf. on Materials for Advanced Power Engineering, Liege, 1996
• [3] Tsuda T., Yamada, M., Ishii, M., et al., Second Symposium on Steel Forgings, New Orleans, 1996
• [4] Nowakowski, P., PhD thesis, to be published 1998