A phenomenological study was undertaken of the stress corrosion cracking (SCC) of type 304L (UNS S30403) austenitic stainless steel (SS) in boiling 44 wt% magnesium chloride (MgCl2) aqueous solution. From the morphological information available on the specimen surface after constant elongation rate testing (CERT) and taking into account the real crack shapes, initiation could be modeled using a staircase function, with incubation time and saturation crack density depending upon elongation rate. The propagation rate of a given crack was found to be a sharply decreasing function of the density of deeper cracks.

Subject
Crack growth, Polishing, Crack initiation, Crack propagation, Stress cracking, Density, Crack depth, Constants, Characterization tests, Elongation, Cracks, Stress corrosion cracking, Chloride stress corrosion cracking
Keywords:
chloride, constant elongation rate testing, cracking, elongation, magnesium chloride and solutions, modeling, stainless steel, stress corrosion cracking, type 304L stainless steel
NACE International
1996
You do not currently have access to this content.