ATD and DSC Analysis of IN-713C and ZhS6U-VI Superalloys
| Autor: | Jan Cwajna, Franciszek Binczyk, P. Gradoń |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
020502 materials Metallurgy Metals and Alloys Innovative casting materials and technologies 02 engineering and technology Solidification parameters 021001 nanoscience & nanotechnology ATD Industrial and Manufacturing Engineering Nickel superalloys DSC Superalloy 0205 materials engineering lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology |
| Zdroj: | Archives of Foundry Engineering, Vol 17, Iss 1, Pp 13-16 (2017) |
| ISSN: | 2299-2944 |
| Popis: | Paper presents the results of ATD and DSC analysis of two superalloys used in casting of aircraft engine parts. The main aim of the research was to obtain the solidification parameters, especially Tsol and Tliq, knowledge of which is important for proper selection of casting and heat treatment parameters. Assessment of the metallurgical quality (presence of impurities) of the feed ingots is also a very important step in production of castings. It was found that some of the feed ingots delivered by the superalloy producers are contaminated by oxides located in shrinkage defects. The ATD analysis allows for quite precise interpretation of first stages of solidification at which solid phases with low values of latent heat of solidification are formed from the liquid. Using DSC analysis it is possible to measure precisely the heat values accompanying the phase changes during cooling and heating which, with knowledge of phase composition, permits to calculate the enthalpy of formation of specific phases like γ or γ′. |
| Databáze: | OpenAIRE |
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