... slow strain rate nuclear waste anodic polarization A large amount of testing has been carried out in synthetic caustic simulants containing between 6 and 12 M sodium hydroxide. For example, testing by Divine et al. employed U-bend specimens and indicated SCC was strongly dependent on temperature...

... simulants of the process wastes in three types of tanks from the Effluent Treatment Facility (ETF) at the Hanford nuclear-waste storage facility; the Surge Tank (ST), the Secondary Waste Receiving Tanks (SWRTs), and the Concentrate Tanks (CTs). The results of Cyclic Potentiodynamic Polarization (CPP...

...EXPERIMENTAL PROCEDURE Materials and Specimens Abstract Reference electrodes are included in the corrosion-monitoring probes that are installed in some of the Double-Shell Tanks (DSTs) used for nuclear waste storage at Hanford. The electrodes are utilized for monitoring in-tank corrosion...

...Nuclear Waste Forms Nuclear waste forms are being made by alloying contaminated cladding hulls and hardware with metallic fuel wastes that remain after electrochemical processing of spent nuclear fuel, which include fission products as well as residual zirconium or molybdenum from metallic fuel...

...Abstract The nuclear waste disposal concept in Finland is based on a multi-barrier system, where the spent nuclear fuel is disposed of in deep crystalline bedrock in copper canisters surrounded by bentonite clay buffer. The copper canisters should have lifetimes exceeding 100 000 years to prevent...

... and testing results of Tank AY-102 are discussed in this paper. Stress corrosion cracking carbon steel nitrate nitrite slow strain rate crack growth rate nuclear waste INTRODUCTION The Hanford Nuclear Reservation contains approximately 2.08 × 10⁸ liters (55 million gallons) of radioactive...

... the processing of retrieved waste and WTP effluent are not likely to cause localized corrosion attack of UNS S30403. Hanford LAW nuclear waste evaporator corrosion 304L stainless steel UNS S30403 The purpose of long-term testing was to evaluate the effects of selected simulant chemistries on the OCP...

... in different environments for both carbon steel and Type 304L stainless steel. The effect of different environmental species, nitrite and hydroxide on repassivation/reactivation mechanism of carbon steel is examined. pit repassivation pit reactivation carbon steel nuclear waste repeated cyclic...

... ranges. stress corrosion cracking carbon steel nitrate nitrite pH Hanford nuclear waste INTRODUCTION The Hanford site contains approximately 55 million gallons (2.08 X 10⁸ liters) of radioactive and chemically hazardous wastes arising from weapons production beginning with World War II...

... liners for Single Shell Tanks (SSTs) used to store nuclear waste. An ionic pathway might be present because of a crack at a level below the waste, which is difficult to detect. The approach uses Electrochemical Impedance Spectroscopy (EIS), in which measurements are made on a working electrode immersed...

... presented. stress corrosion cracking carbon steel nitrate nitrite pH Hanford nuclear waste The research led to several conclusions that are relevant to tank integrity. Work with simulated Tank 241-AN-107 (AN107) waste, which is high in nitrate (3.7M), demonstrated that susceptibility to localized...

... examines case studies where laboratory and field data are used as inputs to refine a risk model. The methodology to create the risk picture and assign value to the consequence of corrosion in these systems is explained. Risk assessment materials selection integrity offshore oil gas nuclear waste...

... hydroxide (NaOH) would be necessary to maintain the pH specification, which would result in a significant cost and increased nuclear waste volume that requires processing. There is concern within the U.S. Department of Energy (DOE), oversight groups and regulatory bodies that the integrity of the tanks...

.... nuclear waste simulant pitting corrosion nitrite inhibitor INTRODUCTION The Hanford tank reservation contains approximately 50 million gallons of liquid legacy radioactive waste from cold war weapons production that is stored in 177 underground storage tanks. The tank reservation will continue...

... be unlikely, diligent mitigation and corrosion potential monitoring efforts are still necessary. stress corrosion cracking carbon steel nitrate nitrite carbonate pH Hanford nuclear waste INTRODUCTION The Hanford tank reservation contains approximately 50 million gallons of liquid legacy radioactive...

... iron artifacts buried in soil provide useful information as supporting evidence for the safety assessment of nuclear waste disposal. Although a lot of corrosion data are necessary to guarantee the validity of the long-term behavior, archaeological samples are invaluable but difficult to analyze...

... from plutonium production to environmental cleanup and restoration. Production activities at the site resulted in a broad range of contaminated materials and facilities, including 57 million gallons of high-level (i.e., highly-radioactive) nuclear waste in liquid and solid forms. The high-level waste...

...: the used fuel bundles, durable metal containers, a clay buffer and seals around each container, and a deep stable geologic environment. An illustration of a recent repository concept is shown in Figure 1 ² . INTRODUCTION Nuclear waste uranium dioxide nuclear fuel corrosion radiolytic...

... will decrease and nitrite will increase. stress corrosion cracking carbon steel nitrate nitrite pH Hanford nuclear waste INTRODUCTION The Hanford tank reservation contains approximately 50 million gallons of liquid legacy radioactive waste from cold war weapons production, which is stored in 177...

... in combating the corrosion problems. Another area of concern in the industry has been with the management of nuclear waste via vitrification technology. Research in USA has shown that alloys containing 50 wt% Nickel, 25 wt% Chromium and additions of 2 to 3% of either Aluminum or Silicon performed comparably...