Vane of a circulation pump out of cast steel
Treatment : quenched and tempered
Magnification : 50 : 1
Etching medium : universal reagent
Sampling / Specification : transverse
Testing result :
dendritic structure with primary carbides
ca. 20 % chromium carbides
local little shrinkage cavity
Treatment : quenched and tempered
Magnification : 100 : 1
Etching medium : universal reagent
Sampling / Specification : transverse
Testing result :
dendritic structure with primary carbides
ca. 20 % chromium carbides
local little shrinkage cavity