scholarly journals Influence of chloride ion concentration and temperature on the electrochemical properties of passive films formed on a superduplex stainless steel

2010 ◽  
Vol 61 (2) ◽  
pp. 240-244 ◽  
Author(s):  
Elki C. Souza ◽  
Sérgio M. Rossitti ◽  
João M.D.A. Rollo
Keyword(s):  
Stainless Steel ◽  
Electrochemical Properties ◽  
Chloride Ion ◽  
Passive Films ◽  
Ion Concentration ◽  
Superduplex Stainless Steel

An Electrochemical Study Of Pitting Corrosion in Stainless Steels (Part 1—Pit Growth)

CORROSION ◽  
1959 ◽  
Vol 15 (1) ◽  
pp. 48-54 ◽  
Author(s):  
N. D. GREENE ◽  
M. G. FONTANA
Keyword(s):  
Stainless Steel ◽  
Pitting Corrosion ◽  
Stainless Steels ◽  
Chloride Ion ◽  
Corrosion Current ◽  
Ion Concentration ◽  
Solution Composition ◽  
Current Interruption ◽  
Percent Nickel ◽  
First Time

Abstract By means of a unique artificial pit specimen, pit growth on 18 percent chromium-8 percent nickel stainless steel has been measured and characterized. The effects of solution composition, agitation, atmosphere, corrosion current interruption, chloride ion concentration, and inhibitor additions have been investigated. Pit interaction during pit growth has also been determined. The autocatalytic nature of pitting has been verified, and evidence of ion screening at pit sites has been experimentally observed for the first time. 3.2.2

Influence of Chloride for SCC Susceptibility on 15Cr Stainless Steel at High Temperatures under CO2 Environment

2017 ◽  
Vol 741 ◽  
pp. 42-49
Author(s):  
Toshiyuki Sunaba ◽  
Susumu Hirano ◽  
Tadao Ishihara
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Stainless Steels ◽  
Anodic Polarization ◽  
Cathodic Polarization ◽  
Martensitic Stainless Steel ◽  
Chloride Ion ◽  
The Other ◽  
Ion Concentration ◽  
Martensitic Stainless Steels

The effects of chloride ion concentration on SCC susceptibility of 15Cr and 13Cr martensitic stainless steels were investigated at 180°C by SSRT. Transgranular SCC occurred in the environment containing CO2 and chloride ion. The increasing chloride ion concentration was significantly affected SCC susceptibility of 15Cr SS. In addition, the contribution of hydrogen to SCC was examined at high temperature by SSRT with electrochemically polarization. The cathodically charged specimens showed hydrogen embrittlement. The fracture surface was similar to that of high temperature SCC. On the other hand, the SCC was accelerated by anodic polarization and not by cathodic polarization. The SCC behavior of martensitic stainless steel at high temperature is affect by evolved hydrogen atom. It is concluded that hydrogen plays a key role in the crack propagation.

scholarly journals EXPERIMENTAL RESEARCH OF CORROSION INITIATION CHLORIDE ION CONCENTRATION OF STAINLESS STEEL REINFORCING BAR IN CONCRETE

2009 ◽  
Vol 65 (4) ◽  
pp. 522-529
Author(s):  
Yutaka TADOKORO ◽  
Yui TSUKUDA ◽  
Toru YAMAJI ◽  
Tsuyoshi MARUYA ◽  
Junichiro NIWA
Keyword(s):  
Stainless Steel ◽  
Experimental Research ◽  
Chloride Ion ◽  
Ion Concentration ◽  
Reinforcing Bar ◽  
Corrosion Initiation

A Model to Predict Stress Corrosion Cracking of Welded Stainless Steel Canister

MRS Advances ◽  
2016 ◽  
Vol 1 (63-64) ◽  
pp. 4179-4184
Author(s):  
Gen Nakayama ◽  
Yohei Sakakibara ◽  
Tomomi Kouketsu ◽  
Kouji Arakawa ◽  
Yutaka Mizo ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Steel Structures ◽  
Chloride Ion ◽  
Storage Conditions ◽  
Residual Stress Distribution ◽  
Corrosion Cracking ◽  
Ion Concentration ◽  
Degree Of Sensitization

ABSTRACTFabricated stainless steel structures are susceptible to stress corrosion cracking (SCC), despite being placed in chloride-containing natural water or humid atmospheres. The present paper describes a model that can define the conditions under which SCC is initiated and propagated, based on analyses of actual SCC incidents induced at welded flanges of cylindrical stainless steel structures.Whenever the vitrified radioactive waste canister storage conditions deviate from normal and appropriate conditions due to earthquakes or tsunamis, the exposed canisters are expected to suffer SCC within 400 hours to 7 years, according to the analytical results obtained such as degree of sensitization, residual stress distribution, chloride ion concentration, and temperature.

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