Analysis of phase transformations in Inconel 738C alloy after regenerative heat treatment
Study is based on the characterization of the chemical composition the phase transformations in Inconel 738C gas turbine blade after standard regenerative heat treatment. The microstructure and chemical composition were examined by scanning electron microscope and transmission electron microscope eq...
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| Veröffentlicht in: | IOP conference series. Materials Science and Engineering 2018-03, Vol.324 (1), p.12001 |
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| creator | Kazantseva, N Davidov, D Vinogradova, N Ezhov, I Stepanova, N |
| description | Study is based on the characterization of the chemical composition the phase transformations in Inconel 738C gas turbine blade after standard regenerative heat treatment. The microstructure and chemical composition were examined by scanning electron microscope and transmission electron microscope equipped with an energy dispersive X-ray spectrometer. It was found the degradation of microstructure of the blade feather. Redistribution of the chemical elements decreasing the corrosion resistance was observed inside the blade feather. The carbide transformation and sigma phase were found in the structure of the blade feather. It is found that the standard regenerative heat treatment of the IN738 operative gas turbine blade does not effect on carbides transformation, TCP σ-phase dissolution, and thus do not guarantee the full recovery of the IN738 gas turbine blade. |
| doi_str_mv | 10.1088/1757-899X/324/1/012001 |
| format | Article |
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The microstructure and chemical composition were examined by scanning electron microscope and transmission electron microscope equipped with an energy dispersive X-ray spectrometer. It was found the degradation of microstructure of the blade feather. Redistribution of the chemical elements decreasing the corrosion resistance was observed inside the blade feather. The carbide transformation and sigma phase were found in the structure of the blade feather. It is found that the standard regenerative heat treatment of the IN738 operative gas turbine blade does not effect on carbides transformation, TCP σ-phase dissolution, and thus do not guarantee the full recovery of the IN738 gas turbine blade.</description><identifier>ISSN: 1757-8981</identifier><identifier>EISSN: 1757-899X</identifier><identifier>DOI: 10.1088/1757-899X/324/1/012001</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Carbides ; Chemical composition ; Chemical elements ; Corrosion resistance ; Feathers ; Gas turbine engines ; Gas turbines ; Heat treating ; Heat treatment ; Microstructure ; Nickel base alloys ; Phase transitions ; Sigma phase ; Superalloys ; Turbine blades ; X ray spectrometers</subject><ispartof>IOP conference series. Materials Science and Engineering, 2018-03, Vol.324 (1), p.12001</ispartof><rights>Published under licence by IOP Publishing Ltd</rights><rights>2018. 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| subjects | Carbides Chemical composition Chemical elements Corrosion resistance Feathers Gas turbine engines Gas turbines Heat treating Heat treatment Microstructure Nickel base alloys Phase transitions Sigma phase Superalloys Turbine blades X ray spectrometers |
| title | Analysis of phase transformations in Inconel 738C alloy after regenerative heat treatment |
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