Internal friction (IF) and dynamic modulus measurements on a high nitrogen (0.8 wt%) austenitic steel in the temperature range from room temperature to 800 °C have been carried out by using a vibrating reed technique with electrostatic excitation and frequency modulation detection of flexural vibrations in the frequency range of kHz. The IF spectrum of the as-prepared material shows a broad peak superimposed to an exponentially increasing background. The discontinuous precipitation of Cr2N phase changes the characteristics of the peak. The results have been discussed by considering interstitial-substitutional (i-s) interactions.
Deodati, P., Montanari, R., Rovatti, L., Ucciardello, N., Carosi, A. (2010). Anelastic phenomena and Cr2N precipitation in a high nitrogen austenitic steel. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? THERMEC2009, BERLINO.
Anelastic phenomena and Cr2N precipitation in a high nitrogen austenitic steel
MONTANARI, ROBERTO;UCCIARDELLO, NADIA;
2010-01-01
Abstract
Internal friction (IF) and dynamic modulus measurements on a high nitrogen (0.8 wt%) austenitic steel in the temperature range from room temperature to 800 °C have been carried out by using a vibrating reed technique with electrostatic excitation and frequency modulation detection of flexural vibrations in the frequency range of kHz. The IF spectrum of the as-prepared material shows a broad peak superimposed to an exponentially increasing background. The discontinuous precipitation of Cr2N phase changes the characteristics of the peak. The results have been discussed by considering interstitial-substitutional (i-s) interactions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
