AMPP Store - Products tagged with 'alkaline'

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51318-10953-SCC Study of Carbon Steel Welds Exposed to Concrete Pore Water Under Anoxic Conditions

Product Number: 51318-10953-SG

Author: B. Kursten / R. Gaggiano

Publication Date: 2018

$20.00

Slow strain rate tests were conducted to study the SCC behavior of plain and welded UNS K02700 grade mild steel exposed to an artificial concrete pore water solution. Tests were performed under anoxic conditions at 140°C, a constant strain rate of 5 × 10-7 s-1 and open circuit potential.

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Corrosion of Candidate BoP Alloys for the Hydrogen Side in Alkaline Water Electrolysis

Product Number: 51324-21036-SG

Author: Morten Tjelta; Jon Kvarekvål

Publication Date: 2024

$40.00

This paper presents corrosion test results of candidate alloys for balance-of-plant (BoP) at the hydrogen side in alkaline water electrolyzers. Experiments were carried out at industrially relevant conditions, i.e. 60-80 °C in 25 wt% KOH solutions at H2 pressures ranging from 1 bar (cf. atmospheric units) to 15 bar (cf. pressurized units). Materials tested were nickel base alloy UNS N06625, austenitic stainless steel UNS S31603, super duplex UNS S327X0 and carbon steel UNS K03014. Mass loss corrosion and localized corrosion based on surface profilometry were used to evaluate materials performance. Corrosion scales were characterized using XRD.

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Effect of Chloride on the SCC Behavior of Carbon Steel Welds Exposed to Concrete Pore Water under Anoxic Conditions

Product Number: 51323-19029-SG

Author: B. Kursten, R. Gaggiano

Publication Date: 2023

$20.00

In all nuclear power generating countries, high-activity, long-lived radioactive waste is an unavoidable by-product of the contribution of this energy to the global electricity generation. Disposal in deep, stable geological formations is, at present, the most promising option accepted at an international level for the long-term management of these wastes. Geological disposal relies on a combination of engineered (man-made) barriers and a natural barrier (the host rock), in order to prevent radionuclides and other contaminants ever reaching concentrations outside the container at which they could present an unacceptable risk for people and the environment.

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Synergistic Effect of Chloride, Sulfide and Thiosulfate on the SCC Behavior of Carbon Steel Welds Exposed to Concrete Pore Water under Anoxic Conditions

Product Number: 51324-20786-SG

Author: B. Kursten; S. Caes; V. De Souza; R. Gaggiano

Publication Date: 2024

$40.00

The supercontainer (SC) is the current reference concept for the geological disposal of vitrified high-level nuclear waste and spent fuel in Belgium. It comprises a prefabricated concrete buffer that completely surrounds a carbon steel overpack. Welding is being considered as the final closure technique of the carbon steel overpack in order to ensure its water tightness. Welding is known to induce residual stresses in the weld zone and its vicinity, which may lead to an increased susceptibility to stress corrosion cracking (SCC). In this study, slow strain rate tests were conducted to study the SCC behavior of plain and welded UNS K02700 grade carbon steel exposed to an artificial concrete pore water solution that is representative for the SC concrete buffer environment. The tests were performed at 140 °C, at a constant strain rate of 5·10-7 s-1 and at open circuit potential under anoxic conditions. The synergistic effect of chloride, sulfide and thiosulfate on the SCC behavior of carbon steel was investigated up to levels of 35,000 mg?L-1 Cl-, 500 mg?L-1 S2- and 600 mg?L-1 S2O32-. In all the tested electrolyte solutions, none of the studied steel configurations, including welded and heat-affected zone materials, were found to be susceptible to SCC.

Products tagged with 'alkaline'

51318-10953-SCC Study of Carbon Steel Welds Exposed to Concrete Pore Water Under Anoxic Conditions

Corrosion of Candidate BoP Alloys for the Hydrogen Side in Alkaline Water Electrolysis

Effect of Chloride on the SCC Behavior of Carbon Steel Welds Exposed to Concrete Pore Water under Anoxic Conditions

Synergistic Effect of Chloride, Sulfide and Thiosulfate on the SCC Behavior of Carbon Steel Welds Exposed to Concrete Pore Water under Anoxic Conditions

Association for Materials Protection and Performance