High temperature mechanical strength and microstructural stability of advanced 9-12%Cr steels and ODS steels

Benjamin Fournier (1) , M. Salvi (1) , Christel Caës (1) , J. Malaplate (1) , France Dalle (1) , Maxime Sauzay (1) , Yann de Carlan (1) , André Pineau (2)

1 SRMA - Service des Recherches Métallurgiques Appliquées
2 CDM - Centre des Matériaux

The present study proposes a comparison between several martensitic and ferritic steels in terms of creep strength and cyclic softening effect. The damage mechanisms are identified using fractographic observations and the microstructural evolutions are observed by TEM. The effects of a modified chemical composition on the high temperature mechanical behaviour are studied.

Domaines: Matériaux

Benjamin Fournier, M. Salvi, Christel Caës, J. Malaplate, France Dalle, et al.. High temperature mechanical strength and microstructural stability of advanced 9-12%Cr steels and ODS steels. International conference on fracture, Jul 2009, Ottawa, Canada. 10 p. ⟨hal-00822179⟩