_________ is surface initiated cracks caused by environmental cracking of 300 Series SS and some nickel based alloys under the combined action of tensile stress, temperature and an aqueous chloride environment. The presence of dissolved oxygen increases the propensity for cracking.

Question

Quizplus · Accepted Answer

The description matches Chloride Stress Corrosion Cracking (Cl SCC) which is a common form of environmental cracking in 300 Series SS and some nickel based alloys. The presence of an aqueous chloride environment, tensile stress, and temperature are the key factors that lead to Cl SCC. Dissolved oxygen further increases the propensity for cracking. Therefore, option C is the correct answer. The other options SSC (Sulfide Stress Cracking), SOHIC (Stress-Oriented Hydrogen-Induced Cracking), and HIC (Hydrogen-Induced Cracking) are different types of cracking that have different causes and mechanisms compared to Cl SCC.

_________ Is Surface Initiated Cracks Caused by Environmental Cracking of 300