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Radiation-Induced Precipitation with Concurrent Bubbles Formation in an Austenitic Stainless Steel (Aisi-348)

16 Pages Posted: 9 Jul 2019 First Look: Accepted

See all articles by Matheus A. Tunes

Matheus A. Tunes

University of Huddersfield - School of Computing and Engineering

Claudio G. Schon

University of São Paulo (USP) - Metallurgical and Materials Engineering Department

Graeme Greaves

University of Huddersfield - School of Computing and Engineering

Abstract

Radiation-induced precipitation has been examined in an Nb-stabilised austenitic stainless steel (AISI-348) during heavy ion irradiation in situ within a transmission electron microscope (TEM) at 1073 K. Selected-area electron diffraction (SAED), bright- and dark-field TEM were used to investigate the nature of the precipitates within the austenite phase (γ-Fe). The precipitates were confirmed to be of Cr23C6 crystal structure. The results herein reported indicate that the concurrent formation of inert gas bubbles may accelerate clustering and precipitation kinetics in the austenite phase during irradiation.

Keywords: Austenitic Stainless Steels, Radiation Damage, Radiation Induced Precipitation, Heavy ion irradiation, Inert Gas Bubbles, AISI-348

Suggested Citation

Tunes, Matheus A. and Schon, Claudio G. and Greaves, Graeme, Radiation-Induced Precipitation with Concurrent Bubbles Formation in an Austenitic Stainless Steel (Aisi-348). Available at SSRN: https://ssrn.com/abstract=3415189

Matheus A. Tunes (Contact Author)

University of Huddersfield - School of Computing and Engineering ( email )

Queensgate
Huddersfield, HD1 3DH
United Kingdom

Claudio G. Schon

University of São Paulo (USP) - Metallurgical and Materials Engineering Department

Av.Prof. Mello Moraes 2463
São Paulo, 05508-030
Brazil

Graeme Greaves

University of Huddersfield - School of Computing and Engineering

Queensgate
Huddersfield, HD1 3DH
United Kingdom

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