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2049561 
Journal Article 
Corrosion of Inconel 713 Alloy in an Ar-1%SO2 Atmosphere between 800 and 1100 degrees C 
Bak, SH; Lee, D 
2013 
51 
7 
505-513 
WOS:000322422200006 
The Ni-based superalloy, Inconel 713, was corroded between 800 and 1100 degrees C for up to 100 h in an Ar-1% SO2 atmosphere. It displayed good corrosion resistance, because the corrosion progressed mainly via oxidation rather than sulfidation. The corrosion products were alpha-Al2O3, Cr2O3, TiO2, NiO, NiAl2O4, and NiCr2O4. Sulfur was sometimes weakly segregated around the scale-alloy interface. Preferential oxidation occurred along the grain boundaries of the matrix. Except in these areas, uniform oxidation occurred, forming thin scales. The formed scales were prone to spallation. 
alloys; casting; corrosion; oxidation; scanning electron microscopy (SEM); IN 713 superalloy