Influence of PBBI eutectic on the crack initiation in 316L and T91 steels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F18%3AN0000079" target="_blank" >RIV/26722445:_____/18:N0000079 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.metalconference.eu/files/uploads/02/Sbornik_Metal_2018_Content.pdf" target="_blank" >https://www.metalconference.eu/files/uploads/02/Sbornik_Metal_2018_Content.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of PBBI eutectic on the crack initiation in 316L and T91 steels

Popis výsledku v původním jazyce

Crack initiation of the ferritic martensitic steel T91 and austenitic steel 316L are currently under study. This is due to the evaluation ongoing in the EC for materials compatibility in Heavy Liquid Metals environment, and, in particular, the issue of Liquid Metal Embrittlement. Slow Strain Rate Tensile (SSRT) tests were performed with flat specimens in PbBi at 300°C with oxygen content in the range of about 10-6 wt.% down to 10-12 wt.% and, for comparison in air, up to the point of maximal stress (without or with minimum necking). Tests were performed with flat tapered specimens, which were meant to create a uniform variation of stress along the gauge length, with the maximum stress concentrated in the narrowest cross-section area. The cracking mode of T91 changed due to environment influence when compared to the testing in air, however the austenitic 316L seemed unaffected, even though at the lowest oxygen content, the crack numbers and morphology changed. Post-tests examinations were carried out with a Scanning Electron Microscope.

Název v anglickém jazyce

Influence of PBBI eutectic on the crack initiation in 316L and T91 steels

Popis výsledku anglicky

Crack initiation of the ferritic martensitic steel T91 and austenitic steel 316L are currently under study. This is due to the evaluation ongoing in the EC for materials compatibility in Heavy Liquid Metals environment, and, in particular, the issue of Liquid Metal Embrittlement. Slow Strain Rate Tensile (SSRT) tests were performed with flat specimens in PbBi at 300°C with oxygen content in the range of about 10-6 wt.% down to 10-12 wt.% and, for comparison in air, up to the point of maximal stress (without or with minimum necking). Tests were performed with flat tapered specimens, which were meant to create a uniform variation of stress along the gauge length, with the maximum stress concentrated in the narrowest cross-section area. The cracking mode of T91 changed due to environment influence when compared to the testing in air, however the austenitic 316L seemed unaffected, even though at the lowest oxygen content, the crack numbers and morphology changed. Post-tests examinations were carried out with a Scanning Electron Microscope.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

METAL 2018 - 27th International Conference on Metallurgy and Materials, Conference Proceedings

ISBN

978-808729484-0

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

559-565

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

23. 5. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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