The effect of acetohydroxamic acid on stainless steel corrosion in nitric acid

Abstract

We present the first study of the effect of acetohydroxamic acid (AHA) on the corrosion behaviour of stainless steels. Particularly, studies have been performed using steels and physicochemical conditions equivalent to those proposed for use in advanced nuclear reprocessing platforms. In these, AHA has been shown to have little effect on either steel passivation or reductive dissolution of both SS304L and SS316L. However, under transpassive dissolution conditions, AHA while in part electrochemically oxidised to acetic acid and nitroxyl/hydroxylamine, also complexes with Fe 3+ , inhibiting secondary passivation and driving transpassive dissolution of both steels.

Challenges to deployment of twenty-first century nuclear reactor systems

“…stainless steel corrosion [30]; manufacture and validation of advanced fuels with novel matrices containing minor actinides (MAs) are just a few of the areas for future targeted research. The fabrication of fuels containing high quantities of MAs and possibly longlived fission products, which will necessitate remote procedures in heavily shielded facilities, poses many technical and economic challenges.…”

Quartz Crystal Microbalance Study of Adenosine as Inhibitor for Fe Corrosion in HCl Solution

“…From the Sauerbrey equation, the measured frequency change can be used to calculate the mass change (¦m) of the surface of the working electrode. 3 There were previous studies on the adsorption of various compounds [4][5][6][7] and corrosion test 8,9 conducted using the QCM. However, despite the popularity of researches into corrosion inhibitors for iron and its alloys (mild, carbon and stainless steels) in HCl solution, 10-14 the real-time adsorption of those inhibitor on a corroding surface of an iron working electrode in HCl solution was relatively unaddressed, especially using QCM.…”