کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1657289 1517618 2015 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Some aspects of elemental behaviour in HVOF MCrAlY coatings in high-temperature oxidation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Some aspects of elemental behaviour in HVOF MCrAlY coatings in high-temperature oxidation
چکیده انگلیسی
MCrAlY coatings are widely used to protect superalloys against oxidation and corrosion at high temperature in gas turbine engines. To design a durable MCrAlY coating, the behaviour of alloying elements in coating-superalloy system needs to be better understood. After oxidation tests in temperature range between 900 °C and 1100 °C, the development of the microstructures in the samples was analysed at the coating surface or in areas near the coating-superalloy interface. Some interdiffusion simulations were also done to model the diffusion behaviour of alloying elements in different coating-superalloy couples. The results show that both oxidation at the coatings' surface and the elements' diffusion inside of the materials were temperature- and chemical-composition dependent. The behaviour of some minor elements like Y, Hf, Ru and Ir in the oxidation processes was particularly studied by tracking their position and composition in the materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 261, 15 January 2015, Pages 86-101
نویسندگان
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