Research Article

Corrosion Behavior of Carbon Steels in CCTS Environment

Table 2

Heat treatments and microstructure of the tested steels.

SteelHeat treatment Microstructure HV

A Hot rollingFerrite-pearlite 170
B-AAnnealingCoarse ferrite-pearlite135
B-NNormalizing Ferrite-pearlite196
B-WQWater quenching (WQ) Martensite 270
B-WQ-T1WQ and tempering at 350°CLow-temperature-tempered martensite245
B-WQ-T2WQ and tempering at 600°CFully tempered martensite 230