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

0498209 - ÚFP 2019 RIV CH eng J - Článek v odborném periodiku
Di Gabriele, F. - Hojná, A. - Chocholoušek, M. - Klečka, Jakub
Behavior of the Steel T91 under Multi Axial Loading in Contact with Liquid and Solid Pb.
Metals. Roč. 7, č. 9 (2017), č. článku 342. E-ISSN 2075-4701
Grant CEP: GA ČR(CZ) GA16-15008S; GA MŠMT(CZ) LQ1603; GA MŠMT(CZ) LM2015093
Institucionální podpora: RVO:61389021
Klíčová slova: Lead * Liquid metal embrittlement * Notch * Solid metal induced embrittlement * Tensile specimen
Obor OECD: Materials engineering
Impakt faktor: 1.704, rok: 2017
https://www.mdpi.com/2075-4701/7/9/342

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.
Trvalý link: http://hdl.handle.net/11104/0290603