Characterization of Laves phase in Crofer 22 H stainless steel

Zheng Wen Hsiao, Bernd Kuhn, Delphic Chen, Lorenz Singheiser, Jui Chao Kuo, Dong Yih Lin

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17 Citations (Scopus)


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 (150μm) of the ferritic matrix did not significantly change at 600°C, 700°C, and 800°C for 10h.

Original languageEnglish
Pages (from-to)59-64
Number of pages6
Publication statusPublished - 2015 Jul 1

All Science Journal Classification (ASJC) codes

  • Structural Biology
  • Materials Science(all)
  • Physics and Astronomy(all)
  • Cell Biology


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