Journal Article

FZJ-2017-07116

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Characterization of Laves Phase in Crofer 22 H Stainless Steel

Hsiao, Z.-W. ; Kuhn, B.FZJ* ; Chen, D. ; Singheiser, L.FZJ* ; Kuo, J.-C. (Corresponding author) ; Lin, D.-Y.

2015
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.micron.2015.04.007

Abstract: This study investigated the effect of annealing temperature on the precipitation behavior of Crofer® 22 H at 600 °C, 700 °C, and 800 °C. The grain size distribution, precipitate phase identification, and microstructure were analyzed using electron backscatter diffraction (EBSD) and energy dispersive X-ray spectroscopy (EDS). The morphology of Laves phase (Fe,Cr,Si)2(Nb,W) precipitates having the Cr2Nb structure changed from strip-like to needle-shaped as the annealing temperature was increased. The precipitates of the Laves phase also shifted from the grain boundaries to the grain interiors when the temperature was increased. However, the average grain size (150 μm) of the ferritic matrix did not significantly change at 600 °C, 700 °C, and 800 °C for 10 h.

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Contributing Institute(s):

1. Werkstoffstruktur und -eigenschaften (IEK-2)

Research Program(s):

1. 111 - Efficient and Flexible Power Plants (POF3-111) (POF3-111)

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