Anelastic Phenomena and Cr2N Precipitation in a High Nitrogen Austenitic Steel

Paolo Deodati; Roberto Montanari; Ludovica Rovatti; Nadia Ucciardello; Andrea Carosi

doi:10.4028/www.scientific.net/AMR.89-91.485

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 89-91Anelastic Phenomena and Cr2N Precipitation in a...

Anelastic Phenomena and Cr₂N Precipitation in a High Nitrogen Austenitic Steel

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.

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Advanced Materials Research (Volumes 89-91)

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485-490

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https://doi.org/10.4028/www.scientific.net/AMR.89-91.485

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Online since:

January 2010

Authors:

Paolo Deodati, Roberto Montanari, Ludovica Rovatti, Nadia Ucciardello, Andrea Carosi

Keywords:

Discontinuous Precipitation, Dynamic Modulus, High Nitrogen Austenitic Steel, Internal Friction

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