N 64 Nikitina, E. V. The electrochemical behavior of construction metals in the carbonate bath with some additions [Text] / E. V. Nikitina, V. Y. Kudyakov, V. I. Dvoynin // Progress in Molten Salt Chemistry: Proceedings from the EUCHEM 2000 Conference on Molten Salts (Denmark, August 20-25, 2000). - 2000. - V. 1. - P367-371. - Bibliogr.: p. 371 (2 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ПОВЕДЕНИЕ ЭЛЕКТРОХИМИЧЕСКОЕ -- МЕТАЛЛЫ -- КАРБОНАТ -- ВАННЫ КАРБОНАТНЫЕ -- АЛЮМИНИЙ -- ТИТАН -- ХРОМ -- Al -- Ti -- Cr -- ПЛЕНКИ ОКСИДНЫЕ -- ПОЛЯРИЗАЦИЯ АНОДНАЯ -- КОРРОЗИЯ |
K 89 Kudyakov, V. Ya. Effect of the composition of a carbonate element electrolyte on the nature of corrosion fractures of metallic materials [Текст] / V. Ya. Kudyakov, E. V. Nikitina // Fundamental'nye Problemy Elektrokhimicheskoi Energetiki, Materialy Mezhdunarodnoi Konferentsii, 5th, Saratov, Russian Federation, June 24-28, 2002. - 2002. - С. 80-82 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): CARBONATE -- CORROSION |
N 64 Nikitina, E. V. Effect of molybdenum and cerium additions on the solidification of recycled Al-Cu-Si alloys [Текст] / E. V. Nikitina // Metally. - 2005. - № 3. - С. 29-34 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): MOLYBDENUM -- Al-Cu-Si |
I-60 Influence of bath composition on aluminium corrosion in alkali carbonate melt [Text] / V. I. Sannikov, V. Y. Kudyakov, E. V. Nikitina, A. A. Pankratov // Corrosion. - 1994. - V.50, N 8. - P594-598. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): SALT -- Al -- ALUMINIUM -- MELT ALKALI CARBONATE -- CORROSION OF ALUMINIUM -- CARBONATE -- BATH COMPOSITION -- Li -- LiAlO2 -- LITHIUM -- ALUMINATE LITHIUM -- Na2O2 -- OXIDE SODIUM -- NaCl -- CHLORIDE SODIUM -- CHLORIDE IONS -- FILM FORMATION -- PASSIVATION -- POTENTIOSTATIC -- SODIUM -- METAL ALKALI Аннотация: The influence of sodium (Na) additions with different chemical natures (sodium peroxide Na2O2 and sodium chloride NaCl on the mechanism and kinetics of aluminum Al corrosion was investigated. Auger electron spectroscopy, x-ray photoelectron spectroscopy, and x-ray structure spectroscopy were used to analyze the corrosion products. Na2O2 promoted formation of more compact, less defective films. At high temperature, the introduction of peroxide into the salt phase resulted in the emergence of different oxigen (O) ions and a film with higher O content NaCl additions destroyed the coating through formation of pits and local solutions of oxide layers. The greater the concentration of active ions was, the less the initial depassivation potential was. Increases in anodic polarization and concentrations of chloride ions (Cl-) diminished induction time. Films consisted only of alpha-LiAlO2, a crystal modification of lithium aluminate |