Report
Phase identification and internal stress analysis of steamside oxides on superheater tubes by means of X-ray diffraction
Steamside oxides formed on plant exposed superheated tubes were investigated using X-ray diffraction. Phase identification and stress analysis revealed that on ferritic X20CrMoV12-1 pure Hematite and pure Magnetite formed and both phases are under tensile stress. IN contrast, on austenitic TP347H Mn-, Cr- and/or Ni-containing oxides are observed, instead of pure Magnetite, underneath a pure Hematite surface layer.
Oxides on the austenitic steel are under compressive stress or even stress-free.
Language: | English |
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Publisher: | Värmeforsk |
Year: | 2005 |
Types: | Report |
ORCIDs: | Pantleon, Karen and Montgomery, Melanie |