Discontinuous Precipitation in a High-Nitrogen Austenitic Steel

Ludovica Rovatti; Roberto Montanari; Nadia Ucciardello; Alessio Mezzi; Saulius Kaciulis; Andrea Carosi

doi:10.4028/www.scientific.net/MSF.638-642.3597

Paper Titles

Precipitation Behavior of Steels with Various Copper during Continuous Cooling
p.3573

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Static and Impact-Dynamic Characterization of Multiphase TRIP Steels
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Microstructure and its Formation Mechanism of Weld Metal of Al-Bearing TRIP Steel
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Discontinuous Precipitation in a High-Nitrogen Austenitic Steel
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Transverse Surface Cracks in Continuously Cast Steel Slabs, Oscillation Marks and Austenite Grain Size
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20 Years of Experience in Thin Slab Casting and Rolling State of the Art and Future Developments
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High Temperature Deformation Mechanisms and Processing Map for Hot Working of Cast-Homogenized Mg-3Sn-2Ca Alloy
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Recent Developments and Future Potentials of Near Net Shape Casting Belt Casting Technology
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HomeMaterials Science ForumMaterials Science Forum Vols. 638-642Discontinuous Precipitation in a High-Nitrogen...

Discontinuous Precipitation in a High-Nitrogen Austenitic Steel

Abstract:

The discontinuous precipitation of a high-nitrogen (0.8 wt%) austenitic steel has been investigated after successive steps of heat treatment at two different temperatures (800 and 850 °C). After each step of heating the material has been examined by X-ray diffraction (XRD), optical microscopy (OM), transmission electron microscopy (TEM), Auger electron spectroscopy (AES) and microhardness tests. The precipitation of Cr2N induces the formation of a secondary austenitic phase, leads to the redistribution of N between transformed and untransformed zones and to local variations of mechanical properties.

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Periodical:

Materials Science Forum (Volumes 638-642)

Pages:

3597-3602

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.638-642.3597

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Online since:

January 2010

Authors:

Ludovica Rovatti, Roberto Montanari, Nadia Ucciardello, Alessio Mezzi, Saulius Kaciulis, Andrea Carosi

Keywords:

Cellular Precipitation, Hardness, Heat Treatment, High Nitrogen Austenitic Stainless Steel, Microstructural Characterization

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