Characterisation of oxide scale adherence after the high temperature oxidation of nickel-based superalloys

Тип публикации: статья из журнала

Год издания: 2012

Идентификатор DOI: 10.3184/096034012X13343145866993

Ключевые слова: nickel-based superalloys, oxidation, interface, adhesion energy, Adhesion energy, Interface, Nickel-based superalloys, Oxidation, Adhesion energy, Cyclic oxidation, Energy-based models, Experimental values, Fracture behaviour, High temperature, Isothermal oxidations, Multi-layered, Nickel- based superalloys, Oxide scale, Scratch test, Single crystal Ni-based superalloys, Sulfur concentrations, Work of adhesion, Interfaces (materials), Nickel, Oxidation, Scale (deposits), Superalloys, Adhesion

Аннотация: The scratch test technique was used to characterise the adherence of multi-layered oxide scales formed during the high temperature isothermal oxidation (1100 degrees C) of a single crystal Ni-based superalloy AM1 with varying sulfur concentrations (0.22-3.2 ppmw). Results were discussed in relation to cyclic oxidation behaviour and microstructural evolution of oxidised samples. The most commonly used elastic energy-based models were applied to calculate the work of adhesion. The obtained values of the work of adhesion were then analysed with regard to the mode-dependence of the fracture behaviour and the possible sources of errors in the scratch test results interpretation. This analysis allowed us to understand the limits of validity of these models and of the experimental value of the work of adhesion.

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Издание

Журнал: MATERIALS AT HIGH TEMPERATURES

Выпуск журнала: Vol. 29, Is. 3

Номера страниц: 243-248

ISSN журнала: 09603409

Место издания: ST ALBANS

Издатель: SCIENCE REVIEWS 2000 LTD

Авторы

  • Fedorova Elena (Siberian Fed Univ, Polytech Inst, Krasnoyarsk 660074, Russia; ENSIACET, Inst Carnot CIRIMAT, F-31030 Toulouse 4, France)
  • Monceau Daniel (ENSIACET, Inst Carnot CIRIMAT, F-31030 Toulouse 4, France)
  • Oquab Djar (ENSIACET, Inst Carnot CIRIMAT, F-31030 Toulouse 4, France)
  • Popov Alexandre (Siberian Fed Univ, Polytech Inst, Krasnoyarsk 660074, Russia)

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