Hydrogen embrittlement of TRIP steel after previous deformation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F20%3A10246274" target="_blank" >RIV/61989100:27360/20:10246274 - isvavai.cz</a>
Result on the web
<a href="https://www.confer.cz/metal/2020?page=4" target="_blank" >https://www.confer.cz/metal/2020?page=4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.37904/metal.2020.3502" target="_blank" >10.37904/metal.2020.3502</a>
Alternative languages
Result language
angličtina
Original language name
Hydrogen embrittlement of TRIP steel after previous deformation
Original language description
The aim of the work was to obtain information about the effect of hydrogen in pre-deformed samples made of TRIP 780 steel and during deformation, when retained austenite transforms into martensite. Electrolytic hydrogenation took place both under the simultaneous action of deformation and before the tensile test itself. After hydrogenation, TRIP steel showed an increase in the yield strength and a decrease in the tensile strength. Elongation at fracture also decreased significantly by more than 20 % compared to samples that were only pre-deformed. The occurrence of deformation-induced martensite in the microstructure of TRIP steels significantly contribute to the susceptibility of these steels to hydrogen embrittlement. For samples with 5% pre-deformation, the value of the hydrogen embrittlement index was found to be 78.1 %, for samples with 10% pre-deformation it further increased to 86.2 %. From these results, hydrogen led to a degradation of mechanical properties with increasing percentage of deformation and at the same time the obtained results demonstrate a significant susceptibility of TRIP steels to hydrogen embrittlement. The article also contains results of a fractographic analysis, which also showed the occurrence of typical signs of hydrogen embrittlement, which are a quasi-cleavage fracture and fisheyes. (C) 2020 TANGER Ltd., Ostrava.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20500 - Materials engineering
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
METAL 2020 : 29th International Conference on Metallurgy and Materials : conference proceedings : May 20-22, 2020, Brno, Czech Republic, EU
ISBN
978-80-87294-97-0
ISSN
2694-9296
e-ISSN
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Number of pages
6
Pages from-to
452-457
Publisher name
Tanger
Place of publication
Ostrava
Event location
Brno
Event date
May 20, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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