The aim of the present work is to study the static tensile strength of Udimet 720Li superalloy at room and working temperature. Slow strain rate tests have been performed on smoothed and notched cylindrical specimens, in order to evaluate material ductility and notch sensitivity. Besides, a microstructural analysis has been done through Scanning Electron Microscope (SEM) to analyze fracture surface and crack nucleation points, evidencing so the alloy brittle behavior and possible heat treatments modifications in order to obtain better results at working temperature.
Mechanical behavior of Udimet 720LI superalloy
CHIOZZI, SAMANTA;DATTOMA, Vito;NOBILE, RICCARDO
2007-01-01
Abstract
The aim of the present work is to study the static tensile strength of Udimet 720Li superalloy at room and working temperature. Slow strain rate tests have been performed on smoothed and notched cylindrical specimens, in order to evaluate material ductility and notch sensitivity. Besides, a microstructural analysis has been done through Scanning Electron Microscope (SEM) to analyze fracture surface and crack nucleation points, evidencing so the alloy brittle behavior and possible heat treatments modifications in order to obtain better results at working temperature.File in questo prodotto:
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