Gamma-ray spectrometry for identifying and evaluating aerosols of nuclear power reactors

Rodin, N.N.; Shmelev, L. V.; Borisov, N.B.; Dembrovskii, M. A.

doi:10.1007/bf00814983

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“…The dissolution kinetics was determined from the iron transfer to the solution with the use of the radio isotope gamma-spectrometry technique [7,11], which 1 Here and below, all contents are given in wt %. allowed us to follow additionally the partial kinetics of the manganese dissolution from the alloys containing it (with respect to Mn 56 ).…”

Section: Introductionmentioning

confidence: 99%

To the co-effect of impurity atoms and structure on the dissolution of iron and its low alloys

Plaskeev

2005

Prot Met

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With the use of tracers, the separate effect of small nickel additions, as well as phosphorus and manganese impurities (including their combinations with sulfur) on the corrosion electrochemical behavior of active iron is studied. Nickel (2.2%) and phosphorus (only 0.07%), which are substantially more corrosion resistant than iron, are found to noticeably suppress the active dissolution of iron from its alloys, whereas the unstable manganese (0.43%) and its sulfides (in an alloy containing 0.43% Mn and 0.06% S) accelerate the dissolution. An effect similar to that of manganese is produced by a simple increase in the defectiveness of the iron crystalline structure. The largest deceleration is observed at a small surface coverage of the dissolving alloy with nickel or phosphorus, whereas the activating effect of manganese and its sulfides is accompanied by their selective transfer to the solution. With an increase in the potential, both effects decrease in magnitude. Generalizing these and other data on the effects of impurities and structural defects on the active dissolution of iron made us reveal the substantial effect of the metal purity and its surface defectiveness (including that induced by a potential increase) on the steady-state kinetics of the process. All the regularities of the effect theoretically follow from the crystal-chemistry concept of dissolution.

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Section: Introductionmentioning

confidence: 99%

To the co-effect of impurity atoms and structure on the dissolution of iron and its low alloys

Plaskeev

2005

Prot Met

View full text Add to dashboard Cite

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Gamma-ray spectrometry for identifying and evaluating aerosols of nuclear power reactors

Cited by 1 publication

References 0 publications

To the co-effect of impurity atoms and structure on the dissolution of iron and its low alloys

To the co-effect of impurity atoms and structure on the dissolution of iron and its low alloys

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