Precipitation during long time ageing in the austenitic stainless steel 310
2012 (English)In: Materials at High Temperature, ISSN 0960-3409, Vol. 29, no 1, 8-16 p.Article in journal (Refereed) Published
Extensive precipitation can occur in high temperature materials during service. This is known to significantly affect the mechanical properties. To be able to study this phenomenon, particle formation in the austenitic stainless steel 310 has been quantified. In particular, sigma-phase and M23C6-carbides have been analysed. Specimens have been aged up to 5000 h at 800 degrees C. The precipitation of the two phases has been modelled. The basis of the model is diffusion-controlled growth. sigma-phase shows a spherical growth and an M23C6 planar growth. The soft impingement of the diffusion zones with respect to both chromium and carbon is taken into account. The influence on mechanical properties is analysed in a parallel paper.
Place, publisher, year, edition, pages
2012. Vol. 29, no 1, 8-16 p.
austenitic stainless, long time ageing, elevated temperature, precipitation, thermodynamic modelling
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-95276DOI: 10.3184/096034012X13269748502792ISI: 000303187900002ScopusID: 2-s2.0-84864353855OAI: oai:DiVA.org:kth-95276DiVA: diva2:527397
QC 201205212012-05-212012-05-212013-05-17Bibliographically approved