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Showing 1 to 7 of 7 for “"Ni-base Superalloys"”.
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Hierarchical multiscale modeling of Ni-base superalloys
Ni-base superalloys are widely used in hot sections of gas turbine engines due to the high resistance to fatigue and creep at elevated temperatures. Due to the demands for improved performance and efficiency in applications of the superalloys, new and improved higher temperature alloy systems are …
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Atomistic modelling of precipitation in Ni-base superalloys
… of the ordered $\gamma^{\prime}$ phase ($\text{Ni}_{3}\text{Al}$) in Ni-base superalloys is fundamental to the performance of engineering components such as turbine disks and blades which operate at high temperatures and loads. Hence for these alloys it is important to optimize their …
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Deformation at Low Temperatures in Single Crystal Ni-base Superalloys
The development of single crystal Ni-base superalloys for gas turbine applications has focused on creep behaviour in the high-temperature regime (above 700 °C). However, the study of deformation in the range of 20 °C to 700 °C is critical to understanding behaviour in the shanks of turbine blades …
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Data-driven Process-Structure-Property Models for Additive Manufactured Ni-base Superalloys
… and sources for the creation of a coherent database. Secondly, this work seeks to investigate the implementation of various statistical and Machine Learning (ML) approaches for the establishment of the PSP models. Both parametric and non-parametric regression techniques are employed to construct …
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Development of new high entropy alloys for brazing of Ni-base superalloys
… component alloys, are novel alloys containing at least five elements with an atomic percent ranging between 5% and 35%. HEAs have attracted attention due to their unique properties such as high strength, good ductility, and high resistance to corrosion and wear. However, applications of …
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Development of Low-Cost Polycrystalline Nickel-Base Superalloys for Gas Turbine Applications
Polycrystalline nickel-base superalloys have found extensive application throughout the aerospace, petrochemical and power generation sectors, due to their exceptional balance of high temperature mechanical properties, thermal stability and oxidation resistance. Extensive alloy development has …
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Interdiffusion Analysis For Nicocraly And Nial Vs. Various Superalloys
Hot section components in gas turbines can be NiCoCrAlY-coated to provide the component with an Al reservoir that maintains a protective oxide layer on its surface. Over the service life of the component, the coatings degrade by composition and phase changes due to oxidation/hot-corrosion, and …