METAL SCIENCE AND HEAT TREATMENT, vol.58, pp.704-706, 2017 (Journal Indexed in SCI)
Article / Article
Title of Journal :
METAL SCIENCE AND HEAT TREATMENT
duplex stainless steel, secondary phases, etching, light microscopy, MECHANICAL-PROPERTIES, CORROSION-RESISTANCE, AGING TREATMENTS, HEAT-TREATMENT, MICROSTRUCTURE
Three different etching methods are used to uncover the ferrite-austenite structure and precipitates of secondary phases in stainless steel 22.5% Cr - 5.4% Ni - 3% Mo - 1.3% Mn. The structure is studied under a light microscope. The chemical etching is conducted in a glycerol solution of HNO3, HCl and HF; the electrochemical etching is conducted in solutions of KOH and NaOH.