Diffusion of hydrogen in the TRIP 800 steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F16%3A86099949" target="_blank" >RIV/61989100:27360/16:86099949 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S2211812816000213" target="_blank" >http://www.sciencedirect.com/science/article/pii/S2211812816000213</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.mspro.2016.03.012" target="_blank" >10.1016/j.mspro.2016.03.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Diffusion of hydrogen in the TRIP 800 steel

Popis výsledku v původním jazyce

The presented paper is devoted to the study of hydrogen diffusion characteristics in the C-Mn-Si TRIP 800 steel. The steel was tested in three different states: in as-received state after hot and cold rolling and subsequent heat treatment; and furthermore after 5% and 10% tensile deformation. Hydrogen diffusion characteristics were studied by means of electrochemical permeation method. Two build up transients corresponding to lower and higher charging current densities as well as a decay transient were recorded during experiment. The lowest values of hydrogen diffusion coefficient (from 1.10(-7) to 3.5.10(-7) cm(2). s(-1)) were observed during the first build up transient; the value of 3.5.10(-7) cm(2). s(-1) corresponded to 10% tensile deformation. During the 2nd build up transient corresponding to the higher charging current density, hydrogen diffusion coefficients increased markedly reflecting thus the fact that hydrogen trapping was less pronounced. For decay transients hydrogen diffusion coefficients were situated between values obtained for the 1st and 2nd build up transients. In all studied states, rather high sub-surface hydrogen concentration was observed during the 1st build up transient rising to 12.6 ppm of hydrogen in as-received state. The obtained results are explained taking into account steel microstructure and hydrogen trapping. (C) 2016 The Authors. Published by Elsevier Ltd.

Název v anglickém jazyce

Diffusion of hydrogen in the TRIP 800 steel

Popis výsledku anglicky

The presented paper is devoted to the study of hydrogen diffusion characteristics in the C-Mn-Si TRIP 800 steel. The steel was tested in three different states: in as-received state after hot and cold rolling and subsequent heat treatment; and furthermore after 5% and 10% tensile deformation. Hydrogen diffusion characteristics were studied by means of electrochemical permeation method. Two build up transients corresponding to lower and higher charging current densities as well as a decay transient were recorded during experiment. The lowest values of hydrogen diffusion coefficient (from 1.10(-7) to 3.5.10(-7) cm(2). s(-1)) were observed during the first build up transient; the value of 3.5.10(-7) cm(2). s(-1) corresponded to 10% tensile deformation. During the 2nd build up transient corresponding to the higher charging current density, hydrogen diffusion coefficients increased markedly reflecting thus the fact that hydrogen trapping was less pronounced. For decay transients hydrogen diffusion coefficients were situated between values obtained for the 1st and 2nd build up transients. In all studied states, rather high sub-surface hydrogen concentration was observed during the 1st build up transient rising to 12.6 ppm of hydrogen in as-received state. The obtained results are explained taking into account steel microstructure and hydrogen trapping. (C) 2016 The Authors. Published by Elsevier Ltd.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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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

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

Procedia Materials Science. Volume 12

ISBN

—

ISSN

2211-8128

e-ISSN

—

Počet stran výsledku

6

Strana od-do

66-71

Název nakladatele

Elsevier

Místo vydání

Amsterdam

Místo konání akce

Ostrava

Datum konání akce

8. 9. 2014

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000386622900012