Figure 4 - uploaded by Luis Garfias
Content may be subject to copyright.
Experimental setup showing the mini-autoclave and hardware used in the present work  

Experimental setup showing the mini-autoclave and hardware used in the present work  

Source publication
Article
Full-text available
In-situ micro-visualization was used to study the pitting corrosion of a 25 Cr Duplex Stainless Steels in chloride containing aqueous solutions containing CO2 gas at high temperatures and high pressures. A small area on the surface of the sample was imaged and video recorded (in real time) during the anodic polarization in the gas/liquid environmen...

Similar publications

Article
Full-text available
Steel rebars of structures exposed to cyclic loadings and marine environments suffer an accelerated deterioration process by corrosion fatigue, causing catastrophic failure before service life ends. Hence, stainless steel rebars have been emerging as a way of mitigating pitting corrosion contribution to fatigue, despite the increased cost. The pres...
Article
Full-text available
Despite their exceptional mechanical and corrosion properties, duplex stainless steels (DSS) have not found widespread use in high-temperature applications due to concerns over thermal aging and embrittlement at elevated operational temperatures (> 300 °C). The present study investigated the effect of thermal aging time on the electrochemical prope...
Article
Full-text available
In this study, the relationship between spinodal decomposition and the formation of Ni-rich clusters and G-phase in the ferrite on hardening and pitting corrosion of two thermally aged duplex stainless steels (DSS) at 475°C was investigated. Results indicate that, for 2205 DSS, pitting corrosion behavior is influenced by the presence and size of G-...
Article
Full-text available
The influence of surface roughness on the pitting corrosion behaviour of 2205 duplex stainless steel (DSS) in a chloride-containing environment was investigated using electrochemical noise (EN) techniques and morphology observation. A rougher surface condition increased the frequency of pit initiation because of the increase in more occluded pit si...
Article
Full-text available
The present work analyses the effect of five types of oxide fluxes – SiO2, TiO2, CrO3, MnO2 and MoO3 – on the depth of penetration and pitting corrosion behaviour of UNS S32205 duplex stainless steel produced with the activated tungsten inert gas welding (A-TIG) process. Five bead-on-plate (BoP) weld samples prepared autogenously with constant weld...