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Initial clustering - a key factor for phase separation kinetics in Fe-Cr-based alloys

J. Zhou ; J. Odqvist ; L. Hoglund ; Mattias Thuvander (Institutionen för teknisk fysik, Materialens mikrostruktur ) ; T. Barkar ; P. Hedstrom
Scripta Materialia (1359-6462). Vol. 75 (2014), p. 62-65.
[Artikel, refereegranskad vetenskaplig]

Clustering of alloying elements in solution-treated Fe-Cr-based alloys is of considerable importance for their microstructure stability upon aging. The clustering of Cr after solution treatment in three stainless steel alloy categories has been studied by atom probe tomography. Furthermore, phase-field simulations are applied to examine the effect of initial clustering on phase separation evolution. It is concluded that the clustering of Cr found in solution-treated ferritic and duplex alloys plays a critical role in the nanostructure evolution during aging.

Nyckelord: Stainless steels, Phase separation, Atom probe tomography (APT), Clustering, Phase-field modeling, DUPLEX STAINLESS-STEELS, ATOM-PROBE TOMOGRAPHY, SPINODAL DECOMPOSITION, FERRITE DECOMPOSITION, QUENCHING RATE, TEMPERATURE, MOSSBAUER



Denna post skapades 2014-03-17. Senast ändrad 2014-09-02.
CPL Pubid: 195116

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Materialens mikrostruktur (2012-2015)

Ämnesområden

Fysik

Chalmers infrastruktur