Creep behaviour of 12Cr-Mo-V steel weldments

Creep behaviour of 12Cr-Mo-V steel weldments

This paper describes an investigation into the creep behaviour of weldments in 12Cr-Mo-V steel, with particular emphasis on the effect of welding conditions and type of filler metals. At 600°C, the creep lives of all the weldments fall below the DIN 17175 scatterband and are not influenced by a vari...

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Veröffentlicht in:The International journal of pressure vessels and piping 1991, Vol.46 (3), p.339-348
Hauptverfasser: Tian, Z.L., Coussement, C., De Witte, M., Steen, M.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
Joining, thermal cutting: metallurgical aspects
Metals. Metallurgy
Welding
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Zusammenfassung:This paper describes an investigation into the creep behaviour of weldments in 12Cr-Mo-V steel, with particular emphasis on the effect of welding conditions and type of filler metals. At 600°C, the creep lives of all the weldments fall below the DIN 17175 scatterband and are not influenced by a variation in welding regime, number of postweld heat treatments and type of filler metal. This is attributed to the premature creep damage in the ‘type IV’ zone, the outer part of the fine grained zone, which possesses the poorest creep resistance.
ISSN:0308-0161
1879-3541
DOI:10.1016/0308-0161(91)90077-F