Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7986595 | Micron | 2015 | 6 Pages |
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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Authors
Zheng-Wen Hsiao, Bernd Kuhn, Delphic Chen, Lorenz Singheiser, Jui-Chao Kuo, Dong-Yih Lin,