Environmentally Assisted Cracking of Stainless Steels in Desalination

2020 ◽  
pp. 153-173
Author(s):  
Abdelkader A. Meroufel
Keyword(s):  
Stainless Steels ◽  
Environmentally Assisted Cracking

Modeling and Quantitative Prediction of Environmentally Assisted Cracking Based Upon a Deformation-Oxidation Mechanism

2004 ◽  
Author(s):  
Tetsuo Shoji ◽  
Zhanpeng Lu ◽  
Qunjia Peng ◽  
Shengchun Wang ◽  
Yoichi Takeda ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Synergistic Effects ◽  
Crack Tip ◽  
Oxidation Mechanism ◽  
Austenitic Stainless Steels ◽  
Quantitative Prediction ◽  
Future Directions ◽  
Environmentally Assisted Cracking ◽  
Austenitic Alloys ◽  
Quantitative Tool

In order to provide a quantitative tool for predicting EAC growth rates for austenitic alloys such as austenitic stainless steels, Alloys 600 and 182 in simulated LWR environments, a model based upon the synergistic effects of deformation and oxidation at the crack tip has been proposed. In this paper, the effects of hardening, variation of K with crack growth and oxidation kinetics on EAC growth rate are described with special emphasis on field applications. The results imply recent cracking incidences in BWR core shroud and Primary Loop Recirculation (PLR) piping and PWR Vessel Penetrations (VP). In particular, the significance of oxide analysis at the crack tip and also of a kinetic approach to oxidation under stress or strain condition is described. Potential future directions for mitigation of such cracking are discussed.

scholarly journals Corrosion of Additively Manufactured Stainless Steels– Process, Structure, Performance: A Review

CORROSION ◽  
10.5006/3741 ◽  
2021 ◽  
Author(s):  
Eric Schindelholz ◽  
Michael Melia ◽  
Jeffrey Rodelas
Keyword(s):  
Stainless Steels ◽  
Critical Factor ◽  
Current Status ◽  
Surface Finishing ◽  
Research Needs ◽  
Metallic Materials ◽  
Environmentally Assisted Cracking ◽  
Unique Material ◽  
Process Structure ◽  
Corrosion Research

The corrosion of additively manufactured (AM) metallic materials, such as stainless steels (SS), is a critical factor for their qualification and reliable use. This review assesses the emerging knowledgebase of powder-based laser AM SS corrosion and environmentally assisted cracking (EAC). The origins of AM-unique material features and their hierarchal impact on corrosion and EAC are addressed relative to conventionally processed SS. The effects of starting material, heat treatment and surface finishing are substantively discussed. An assessment of the current status of AM corrosion research, scientific gaps and research needs with greatest impact for AM SS advancement and qualification is provided.

Study of Environmentally Assisted Cracking of Duplex Stainless Steels as a Result of the Presence of Sigma Phase

CORROSION ◽  
2011 ◽  
Vol 67 (12) ◽  
pp. 125002-1-125002-14 ◽  
Author(s):  
S.P.V. Mahajanam ◽  
R.P. Case ◽  
H.E. Rincon ◽  
D.R. McIntyre ◽  
M.W. Joosten ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Sigma Phase ◽  
Duplex Stainless Steels ◽  
Environmentally Assisted Cracking

scholarly journals Crevice corrosion and environmentally assisted cracking of high-strength duplex stainless steels in simulated concrete pore solutions

2021 ◽  
Author(s):  
Robert Moser ◽  
Preet Singh ◽  
Lawrence Kahn ◽  
Kimberly Kurtis ◽  
David González Niño ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Hydrogen Embrittlement ◽  
Strain Rate ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Stainless Steels ◽  
Crevice Corrosion ◽  
High Strength ◽  
Environmentally Assisted Cracking ◽  
Rate Testing

This paper presents a study of crevice corrosion and environmentally assisted cracking (EAC) mechanisms in UNS S32205 and S32304 which were cold drawn to tensile strengths of approximately 1300 MPa. The study utilized a combination of electrochemical methods and slow strain rate testing to evaluate EAC susceptibility. UNS S32205 was not susceptible to crevice corrosion in stranded geometries at Cl⁻ concentrations up to 1.0 M in alkaline and carbonated simulated concrete pore solutions. UNS S32304 did exhibit a reduction in corrosion resistance when tested in a stranded geometry. UNS S32205 and S32304 were not susceptible to stress corrosion cracking at Cl⁻ concentrations up to 0.5 M in alkaline and carbonated solutions but were susceptible to hydrogen embrittlement with cathodic overprotection.

Crevice corrosion and environmentally assisted cracking of high-strength duplex stainless steels in simulated concrete pore solutions

2019 ◽  
Vol 203 ◽  
pp. 366-376 ◽  
Author(s):  
Robert D. Moser ◽  
Preet M. Singh ◽  
Lawrence F. Kahn ◽  
Kimberly E. Kurtis ◽  
David González Niño ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Crevice Corrosion ◽  
High Strength ◽  
Duplex Stainless Steels ◽  
Environmentally Assisted Cracking

scholarly journals Environmental Degradation of Dissimilar Austenitic 316L and Duplex 2205 Stainless Steels Welded Joints

2017 ◽  
Vol 62 (4) ◽  
pp. 2107-2112 ◽  
Author(s):  
S. Topolska ◽  
J. Łabanowski
Keyword(s):  
Strain Rate ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Stainless Steels ◽  
Welded Joints ◽  
Sea Water ◽  
Water Solution ◽  
Corrosion Cracking ◽  
Environmentally Assisted Cracking ◽  
316L Steel

AbstractThe paper describes structure and properties of dissimilar stainless steels welded joints between duplex 2205 and austenitic 316L steels. Investigations were focused on environmentally assisted cracking of welded joints. The susceptibility to stress corrosion cracking (SCC) and hydrogen embrittlement was determined in slow strain rate tests (SSRT) with the strain rate of 2.2 × 10−6s−1. Chloride-inducted SCC was determined in the 35% boiling water solution of MgCl2environment at 125°C. Hydrogen assisted SCC tests were performed in synthetic sea water under cathodic polarization condition. It was shown that place of the lowest resistance to chloride stress corrosion cracking is heat affected zone at duplex steel side of dissimilar joins. That phenomenon was connected with undesirable structure of HAZ comprising of large fractions of ferrite grains with acicular austenite phase. Hydrogen assisted SCC tests showed significant reduction in ductility of duplex 2205 steel while austenitic 316L steel remains almost immune to degradation processes. SSR tests of dissimilar welded joints revealed a fracture in the area of austenitic steel.

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