INHIBITION OF STRESS CORROSION CRACKING OF TYPE 403 STAINLESS STEEL IN SODIUM SULFATE SOLUTIONS.

Polarization measurements were conducted in the absence and presence of sodium silicate, sodium phosphate, sodium nitrite, sodium sulfite, sodium cyanide, sodium chromate, hexylamine, cyclohexylamine, morpholine, and octadecylamine. Times to failure were measured in 0. 01M Na//2SO//4 solutions with and without inhibitors at an applied potential of plus 540mV//H. Sodium silicate was the only effective inorganic inhibitor, and a failure time equivalent to that in air was found with the addition of 0. 28M Na//2SiO//3. Hexylamine, cyclohexylamine, morpholine, and octadecylamine were also effective.