Phenomena Occurring in Nanostructured Stainless Steel 316LVM during Annealing under High Hydrostatic Pressure

Agnieszka Krawczyńska , S. Gierlotka , Przemysław Suchecki , Daria Setman , Bogusława Adamczyk-Cieślak , Michał Gloc , Witold Chromiński , Małgorzata Lewandowska , M. Zehetbauer

Abstract

The aim of the study is to demonstrate the impact of high hydrostatic pressure annealing on the grain boundary character, precipitation rate, and susceptibility to intergranular corrosion of nanostructured austenitic stainless steel 316LVM. To this end, samples of an austenitic stainless steel are deformed by high pressure torsion and subsequently annealed at 900 °C for 10 min under a pressure of 2, 6 GPa and, for comparison, under atmospheric pressure. The resulting microstructures are examined using electron beam scattering diffraction, and transmission and scanning electron microscopy. It is shown that the pressure applied during annealing leads to a higher percentage of high‐angle grain boundaries than does atmospheric pressure. Moreover, it promotes the coexistence of two orientations, <111> and <100>, whereas atmospheric supports mainly <111>. High pressure hinders the growth of carbides, but drastically increases their number compared with atmospheric pressure annealing. As a consequence, the highest number of Cr23C6 carbides are present in the sample annealed under 6 GPa, making this sample susceptible to intergranular corrosion.
Author Agnieszka Krawczyńska (FMSE / DMD)
Agnieszka Krawczyńska,,
- Division of Materials Design
, S. Gierlotka - [High Pressure Research Center of the Polish Academy of Sciences]
S. Gierlotka,,
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, Przemysław Suchecki (FMSE / DMD)
Przemysław Suchecki,,
- Division of Materials Design
, Daria Setman - [Universitat Wien]
Daria Setman,,
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, Bogusława Adamczyk-Cieślak (FMSE / DMD)
Bogusława Adamczyk-Cieślak,,
- Division of Materials Design
, Michał Gloc (FMSE / DMD)
Michał Gloc,,
- Division of Materials Design
, Witold Chromiński (FMSE / DMD)
Witold Chromiński,,
- Division of Materials Design
, Małgorzata Lewandowska (FMSE / DMD)
Małgorzata Lewandowska,,
- Division of Materials Design
, M. Zehetbauer - [Universitat Wien]
M. Zehetbauer,,
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Journal seriesAdvanced Engineering Materials, ISSN 1438-1656, (A 25 pkt)
Issue year2019
Vol21
No1
Pages1800101 (1-9)
Publication size in sheets0.5
Keywords in Englishannealing, austenitic stainless steel, intergranular corrosion resistance, nanostructured materials
ASJC Classification3104 Condensed Matter Physics; 2500 General Materials Science
DOIDOI:10.1002/adem.201800101
URL https://onlinelibrary.wiley.com/doi/full/10.1002/adem.201800101
Languageen angielski
File
Krawczynska_et_al-2018-Advanced_Engineering_Materials.pdf 1.74 MB
Score (nominal)30
ScoreMinisterial score = 25.0, 22-01-2019, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 22-01-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.116; WoS Impact Factor: 2017 = 2.576 (2) - 2017=2.516 (5); Scopus Citations = 0; WoS Citations = 0
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