Detail publikace
Structural stability of dissimilar weld joints of steel P91
FORET, R., MILLION, B., SVOBODA, M., STRÁNSKÝ, K.
Originální název
Structural stability of dissimilar weld joints of steel P91
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
This paper addresses the issue of C and N redistribution in weld joints of creep-resistant chromium steels. The redistribution of C and N was measured using the wave-dispersive X-ray method. The conditions of the long-term diffusion annealing process were: temperature 575, 625 and 700 oC; time 10, 100, 1 000 and 5 000 hours. It was ascertained that C and N diffused from the low-alloy steels to the high-alloy steel P91. The carbon diffusion coefficients in the individual steels of 15128/P91 and SK3STC/P91 weld joints, the ratio between the thermodynamic activity coefficients of carbon in joints, the diffusion interaction parameters , and their temperature dependencies were estimated from carbon concentration curves. The paper also contains a microstructure analysis of decarburized and carburized zones in the weld joints studied.
Klíčová slova
structural stabilidy, creep-resistant steels, weld joints, redistribution of C and N
Autoři
FORET, R., MILLION, B., SVOBODA, M., STRÁNSKÝ, K.
Rok RIV
2002
Vydáno
1. 1. 2002
ISSN
1362-1718
Periodikum
Science and Technology of Welding and Joinig
Ročník
6
Číslo
6
Stát
Spojené království Velké Británie a Severního Irska
Strany od
405
Strany do
411
Strany počet
7
BibTex
@{BUT71861
}