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Powdermetallurgical fabrication of steam line components for advanced 9-12 per cent Cr steels

Pulvermetallurgische Herstellung von Dampfsammlerbauteilen für 9-12% Chromstähle
: Franklin, C.J.; Heisel, U.; Torssell, K.; Hollstein, T.

Bachelet, E.:
High Temperature Materials for Power Engineering 1990. Proceedings of a Conference. Vol.1
Dordrecht: Kluwer Academic Publishers Group, 1990
ISBN: 0-7923-0925-1
High Temperature Materials for Power Engineering <4, 1990, Liege>
Conference Paper
Fraunhofer IWM ()
Dampfsammler; Kurzzeitschwingfestigkeit; low cycle fatigue test; powder metal; Pulvermetall; Qualitätskontrolle; quality control; steam header

Sections of a steam header have been produced from X20 CrMoV 121 and T91 powder material, using the HIP process to produce compaction and solidification. Following production and quality contol inspection this material has been subjected to an extensive evaluation programme, to determine its mechanical properties. Tensile, impact, creep and fatigue testing have demonstrated that the PM material produced is at least as good as its wrought equivalent. PM material is very homogeneous and its properties are isotropic.