Modeling of Microstructural Evolution in an MCrAlY Overlay Coating on Different Superalloy Substrates
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چکیده
منابع مشابه
Phase-field Modeling with CALPHAD and CVM for Microstructural Evolution of Ni-base Superalloy
To perform a quantitative simulation using the Phase Field Method (PFM) in a real alloy system, a new strategy of modeling the microstructure evolution of Ni-base superalloy is proposed in the present paper. In this strategy, the Calculation Phase Diagram (CALPHAD) method and Cluster Variation Method (CVM) are combined with the PFM, in which the four sub-lattice model is used to evaluate the fr...
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15 صفحه اولOxidation behaviour of MCrAlX coatings: effect of surface treatment and an Al-activity based life criterion
MCrAlY coatings (M=Ni and/or Co) have been widely used for the protection of superalloy components against oxidation and hot corrosion in the hot sections of gas turbines. The drive to improve engine combustion efficiency while reducing emissions by increasing the operation temperature brings a big challenge for coating design. As a result, the need for improvement of MCrAlY coatings for better...
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Superalloys are metallic alloys used for high temperature applications such as encountered in the aircraft industry and where resistance to deformation is a primary requirement. Alloy 718 and waspaloy are few examples of Nickel-base superalloys that resist deformation at elevated temperatures and are therefore difficult to hot work. The major hotworking operations are forging, extrusion, and ro...
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ژورنال
عنوان ژورنال: Metallurgical and Materials Transactions A
سال: 2011
ISSN: 1073-5623,1543-1940
DOI: 10.1007/s11661-011-0897-3