The influence of the environment factors and the surface treatment on Stress Corrosion Cracking of Type 304 Austenitic Stainless Steel

Nguyen Thi Thanh Nga, Le Thi Hong Lien, Tadashi Shinohara
2019 Zenodo  
Abstract— The aim of this work is to understand the combined effects of stress, temperature, humidity and chloride ion on the susceptibility of stress corrosion cracking (SCC) of type 304 austenitic stainless steel. The occurrence of SCC was investigated using the as received (cold work), sensitized samples those are exposed to the environmental test chamber at 40oC and 70oC, respectively. The humidity from 40% to 70% RH with gradient of 10% was applied during the corrosion test lasted 720h.
more » ... est lasted 720h. The results showed the environmental conditions where SCC crack can be occurred and where it can be avoided. The initiation and the propagating of SCC crack on the flat and U-bend specimens were grown up to correspond to the increasing of test temperature. Very high stress corrosion cracking can be observed in the period of low relative humidity (40%) and temperature (40oC).
doi:10.5281/zenodo.3595909 fatcat:c6ern3ttjfaepabtcwcvfyrbee