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Metals 2017, 7(9), 342; doi:10.3390/met7090342

Behavior of the Steel T91 under Multi Axial Loading in Contact with Liquid and Solid Pb

1
Department of R&D for Generation IV Technologies, Centrum Vyzkumu Rez (CVR), Rez 130, 25068 Husinec, Czech Republic
2
Department of Materials Science, Institute of Plasma Physics of the Czech Academy of Science (IPP), 18200 Prague, Czech Republic
*
Author to whom correspondence should be addressed.
Received: 2 August 2017 / Revised: 21 August 2017 / Accepted: 22 August 2017 / Published: 4 September 2017
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Abstract

In this work, the conditions for the occurrence of Liquid Metal Embrittlement (LME) in the ferritic-martensitic steel T91 in contact with lead, Pb, were examined. Slow tensile tests with notched specimens revealed that in a temperature range close to the melting point of Pb, the steel is sensitive to LME (350–400 °C) and to Solid Metal Induced Embrittlement (SMIE) (300 °C). The cracking was stimulated by wetting (using a chemical flux) and the notch effect. It was found that the multi axial stresses state and the high level of plastic strain in front of the notch were the key factors triggering crack initiation. View Full-Text
Keywords: Liquid Metal Embrittlement; Solid Metal Induced Embrittlement; T91; lead; notch; tensile specimen Liquid Metal Embrittlement; Solid Metal Induced Embrittlement; T91; lead; notch; tensile specimen
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MDPI and ACS Style

Di Gabriele, F.; Hojna, A.; Chocholousek, M.; Klecka, J. Behavior of the Steel T91 under Multi Axial Loading in Contact with Liquid and Solid Pb. Metals 2017, 7, 342.

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