Abstract
Materials science is highly significant in space program investigation, energy production and others. Therefore, designing, improving and predicting advanced material properties is a crucial necessity. The high temperature creep and corrosion resistance of Ni-based superalloys makes them important materials for turbine blades in aircraft engines and land-based power plants. The investment casting process of turbine blades is costly and time consuming, which makes process simulations a necessity. These simulations require fundamental models for the microstructure formation. In this paper, we present advanced analytical techniques in describing the microstructures obtained experimentally and analyzed on different sample’s cross-sectional images. The samples have been processed on board the International Space Station using the MSL-EML device based on electromagnetic levitation principles. We applied several aspects of fractal analysis and obtained important results regarding fractals and Hausdorff dimensions related to the surface and structural characteristics of CMSX-10 samples. Using scanning electron microscopy (SEM), Zeiss LEO 1550, we analyzed the microstructure of samples solidified in space and successfully performed the fractal reconstruction of the sample’s morphology. We extended the fractal analysis on the microscopic images based on samples solidified on earth and established new frontiers on the advanced structures prediction.
Highlights
Germany and is in operation since about years. The ture of these samples processed in space under microgravity conditions has analyzed microstructure of these samples processed in space under microgravity been conditions has by been analyzed by scanning electron microscopy (SEM) (Scanning Electron Microscopy - Zeiss LEO 1550)
We considered the microstructures of different images samples
We applied several aspects of fractal analyses and obtained certain results regarding the Hausdorff dimensions related to the surface and structural characteristics of the CMSX-10 samples
Summary
The superior creep resistance, high-temperature strength, and corrosion resistance make Nickel-based superalloys the material class of choice for high-performance applications, such as turbine blades of aircraft turbines. Common uses of Nickelbased superalloys are turbine components for aircraft and land-based turbines for power generation. Manufacturing of turbine blades is usually performed by complex casting procedures, such as investment casting and directional solidification. That route generally achieves polycrystalline morphologies with equiaxed grains or grains aligned along the length of the blade. For advanced performance, single-crystal turbine blades are published maps and institutional affiliations. For for advanced advanced performance, performance, single-crystal single-crystal turbine turbine blades blades length are are manufactured, manufactured, using using specially specially designed designed alloy alloy compositions, compositions, such such as as CMSX-10. SingleSinglecrystalline components exhibit improved performance and lifetime compared blades manufactured, using specially designed alloy compositions, such as CMSX-10
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