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3D analysis of phase separation in ferritic stainless steels

J. Odqvist ; J. Zhou ; W. Xiong ; P. Hedström ; Mattias Thuvander (Institutionen för teknisk fysik, Materialens mikrostruktur ) ; M. Selleby ; J. Ågren
1st International Conference on 3D Materials Science 2012, 3DMS 2012 p. 221-226. (2013)
[Konferensbidrag, refereegranskat]

The embrittlement of ferritic stainless steels during low temperature aging is attributed to the phase separation with Fe and Cr demixing. The small scale of the decomposed structure with only minor compositional fluctuations and short distances between the enriched and depleted regions has been a challenge for quite some time. A wide selection of experimental and modeling tools have been used to quantify these types of structures. These analyses often focus on rather late stages of decomposition where the mechanical properties are already seriously affected. The recent advance in 3D tools like phase-field and atom probe tomography have created a need for good quantitative procedures of evaluating the structure and also to link results from the continuum approach to the individual atom measurements. This work aims at addressing this need.



Denna post skapades 2014-01-07. Senast ändrad 2014-09-02.
CPL Pubid: 191427

 

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Institutioner (Chalmers)

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

Ämnesområden

Materialteknik

Chalmers infrastruktur