About: Hydrogen Embrittlement of Very High Strength Steels after Severe Hydrogen Charging

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Hydrogen embrittlement mechanisms of two very high strength steels (VHSS) with ultimate tensile strength reaching 1000 MPa were studied in severe hydrogen charging conditions. These VHSS were a TRIP steel (A) and a Cr-Mo-V alloyed steel (B). They were submitted to a cathodic charging in an acid solution with an addition of As2O3, acting as a promoter of hydrogen absorption. Electrochemical permeation technique and subsequent hydrogen dosage by thermal desorption tests provided values for hydrogen diffusion characteristics. A and B steels present diffusivity of 2.8 x 10-11 m2 x s-1 and 2.2 x 10-10 m2 x s-1. Hydrogen solubility was different in both steels, but residual hydrogen content appeared to be very low for both steels. Otherwise, tensile tests performed on hydrogenated steels showed a higher loss of ductility. Fracture surface observations suggest brittle failures: transgranular brittle failure for the steel A and intergranular brittle failure for the steel B. Resistance to the h Hydrogen embrittlement mechanisms of two very high strength steels (VHSS) with ultimate tensile strength reaching 1000 MPa were studied in severe hydrogen charging conditions. These VHSS were a TRIP steel (A) and a Cr-Mo-V alloyed steel (B). They were submitted to a cathodic charging in an acid solution with an addition of As2O3, acting as a promoter of hydrogen absorption. Electrochemical permeation technique and subsequent hydrogen dosage by thermal desorption tests provided values for hydrogen diffusion characteristics. A and B steels present diffusivity of 2.8 x 10-11 m2 x s-1 and 2.2 x 10-10 m2 x s-1. Hydrogen solubility was different in both steels, but residual hydrogen content appeared to be very low for both steels. Otherwise, tensile tests performed on hydrogenated steels showed a higher loss of ductility. Fracture surface observations suggest brittle failures: transgranular brittle failure for the steel A and intergranular brittle failure for the steel B. Resistance to the h (en)
Title	Hydrogen Embrittlement of Very High Strength Steels after Severe Hydrogen Charging Hydrogen Embrittlement of Very High Strength Steels after Severe Hydrogen Charging (en)
skos:prefLabel	Hydrogen Embrittlement of Very High Strength Steels after Severe Hydrogen Charging Hydrogen Embrittlement of Very High Strength Steels after Severe Hydrogen Charging (en)
skos:notation	RIV/61989100:27360/08:00019570!RIV10-MSM-27360___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6198910015)
http://linked.open...iv/cisloPeriodika	7
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Sojka, Jaroslav Filuš, František
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	371019
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/08:00019570
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	hydrogen embrittlement; TRIP steel; diffusion; electrochemical permeation; tensile test; fractography (en)
http://linked.open.../riv/klicoveSlovo	fractography tensile test hydrogen embrittlement TRIP steel diffusion electrochemical permeation
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[1666EFEAD04F]
http://linked.open...i/riv/nazevZdroje	Hutnické listy
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	61
http://linked.open...iv/tvurceVysledku	Filuš, František Sojka, Jaroslav Sozanska, Maria
http://linked.open...n/vavai/riv/zamer	Structural potentiality and properties of intensively formed materials
issn	0018-8069
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	27360
is http://linked.open...avai/riv/vysledek of	Hydrogen Embrittlement of Very High Strength Steels after Severe Hydrogen Charging Hydrogen Embrittlement of Very High Strength Steels after Severe Hydrogen Charging Hydrogen Embrittlement of Very High Strength Steels after Severe Hydrogen Charging Hydrogen Embrittlement of Very High Strength Steels after Severe Hydrogen Charging

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