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Keywords: carbides
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Proceedings Papers

Microstructural Evolution of Wrought and AM Haynes 188 Under Long Term Thermal Exposure

Vamadevan Gowreesan, Wayne Greaves, Yogi Pardhi, Karen Barrios
Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T17A001, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79113
https://doi.org/10.1115/GT2022-79113
... and mechanical properties of wrought and AM Haynes 188. Most importantly, it illustrates a significant difference in microstructural response of the two materials to long term thermal exposure and its effect on mechanical properties. additive manufacturing Haynes 188 thermal exposure carbides...
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Topics: Additive manufacturing, Cobalt, Design, Fractography, Fracture (Materials), Fracture (Process), Gas turbines, High temperature, Mechanical properties, Mechanical testing
Proceedings Papers

Failure Investigation of 1 st Stage Buckets From Frame 3002, 10 MW Gas Turbine Unit

Girish M. Shejale, David Ross
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 189-198, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46863
https://doi.org/10.1115/GT2011-46863
... of service. The metallurgical tests performed included Visual inspection, Scanning Electron Microscopy (SEM), Energy Dispersive Analysis of X-ray (EDS), Chemical analysis, Tensile test and Hardness survey. The test results, discussions and conclusions are presented in this paper. buckets carbides...
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Topics: Embrittlement, Failure, Gas turbines, Heat treating (Metalworking)