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Keywords: initiation
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Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13383
... ABSTRACT Understanding stress corrosion crack (SCC) initiation of UNS N06600 (Alloy 600) and UNS N06690 (Alloy 690) is of critical importance for material degradation prediction and plant life management for existing pressurized water reactors. To address this issue, long-term SCC initiation...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11439
... resistance initiation duplex stainless steel Microstructure Environmental Testing of Rolled and Hot Isostatically-Pressed Duplex Stainless Steels Lisa Blanchard, Hongbiao Dong University of Leicester University Road Leicester, LE1 7RH United Kingdom Kasra Sotoudeh * TWI Ltd Granta Park Cambridge CB21...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11522
... ABSTRACT Stress corrosion crack (SCC) initiation of a solution annealed, cold-worked (CW) UNS N06600 (Alloy 600) material was investigated in 360 and 325°C simulated PWR primary water using constant load tensile instrumented for in-situ detection by the direct current potential drop technique...
Proceedings Papers

Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-8857
... internals and fluence histories of three US plants, were then evaluated for one octant of the core. Those stress results were used to define the IASCC parameter for each bolt as a function of time. The probability of failure of each bolt (where failure is defined as IASCC initiation) was then determined...
Proceedings Papers

Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-8885
.... Performance test results will be presented including those obtained using a unique atmospheric corrosion test method that measures time to crack initiation on coated/bare notched and sensitized 5xxx alloy samples. The method allows for mechanical load and test environment variability and is low-cost to enable...
Proceedings Papers

Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9147
... on both SCC crack initiation and propagation by controlling the anodic dissolution process of steel and the inhibiting effect increased with CP level. The mitigating effect of CP on crack initiation was more significant than that on crack propagation. For X100 steel, it was observed that hydrogen...
Proceedings Papers

Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9475
... ABSTRACT Stress corrosion crack initiation of two thermally-treated, cold-worked (CW) UNS N06690 (alloy 690) materials was investigated in 360 °C simulated PWR primary water using constant load tensile (CLT) tests and blunt notch compact tension (BNCT) tests equipped with direct current...
Proceedings Papers

Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9717
... ABSTRACT Although highly cold-worked UNS N06690 has been shown to be susceptible to stress corrosion crack growth in pressurized water reactor primary water, it is unclear whether stress corrosion cracking initiation occurs under constant load test conditions. To evaluate the stress corrosion...
Proceedings Papers

Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7707
... and Sutton12 model explains the crevice corrosion process conceptually and mathematically. The model describes four fundamental steps leading to crevice corrosion. Initially there is deoxygenation within the crevice, increasing pH and Cl - of the crevice solution, crevice corrosion initiation due...
Proceedings Papers

Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7843
... into this age-old problem using metallurgical and microbiological approach to come up with a Metal-Microbe Synergy (MMS) mechanism for the localized corrosion aspect of SS. Localized corrosion initiation of AISI 316L SS and 202 SS under the influence of natural biofilms and biofilms of manganese oxidizing...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5837
... Abstract Once corrosion of the reinforcing steel embedded in concrete has initiated, the corrosion propagation period is typically assumed to last five to ten years for carbon steel reinforcement. However, the duration of the corrosion propagation period could be significantly longer...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5799
... corrosion subsurface corrosion corrosion management localized corrosion initiation publication division experiment corrosion inhibition materials and corrosion riser corrosion chloride solution corroded region texas 77084 crevice corrosion nacl solution stainless steel houston shoesmith...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-6102
... with controlled-width cracks placed along the length of a central reinforcing steel bar, with initial cyclic exposure to a 5% NaCl solution. Crack widths ranging from 0.01 in to 0.04 in and polarization levels ranging from -330 mV to -540 mV (SCE) were evaluated over 1 year. Results suggest that CPrev...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-6132
... as a result of crack initiation and propagation through the canister wall thickness. In this assessment, key factors affecting CISCC of the canisters are identified in terms of environments, stresses, and material sensitization. This paper proposed a methodology to estimate the time for crack initiation...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5925
... Abstract Effect of Cl - concentration on pitting susceptibility of UNS S31603 stainless steel was evaluated by immersion testing. Initiation and growth of pitting on austenitic stainless steel exposed to a sour environment was studied by scanning electron microscopy (SEM), energy dispersive...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5656
... Abstract Depending on environmental conditions coupled with mechanical stress Duplex Stainless Steels (DSS) may suffer from Stress Corrosion Cracking (SCC) assisted by H 2 S initiated by local corrosion processes that involve the selective dissolution of the ferritic phase or the austenitic...
Proceedings Papers

Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5460
... corrosion subsurface corrosion cs distribution cement steel specimen manuscript corrosion management reinforcement publication division exposure houston crr initiation permission distribution function ratio 0 texas 77084 corrosion resistant reinforcement cdf Exposure Testing...
Proceedings Papers

Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-3637
... ABSTRACT Previous research reported an equation whereby the fraction of electrochemically independent, identically exposed reinforced concrete elements for which corrosion initiation has resulted after a given time can be calculated. The approach considers that all relevant variables (surface...
Proceedings Papers

Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4459
..., as the dry corrosion could be prevented up to temperatures of 140 ° C . materials and corrosion well integrity Publication Division flowline corrosion biofuel dry corrosion Pipeline Corrosion riser corrosion reactor texas 77084 aluminum ethanol manuscript alloy test duration initiation...
Proceedings Papers

Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4469
... ABSTRACT The effects of localized strain deformation induced by complex straining on stress corrosion cracking ( SCC ) initiation in stainless steels exposed to simulated pressurized water reactor ( PWR ) primary water environments at 360 o C were investigated using cruciform specimens...

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