Interaction between plastic deformation and hydrogen damage behavior of 30CrMnSiNi2A steel

The interaction between plastic deformation and hydrogen damage behavior of 30CrMnSiNi2A steel was investigated by pre-strain tensile tests and hydrogen charging by electrochemical method. This paper mainly contains two parts. The plastic deformation was restrained by hydrogen-charged, and the effec...

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Main Authors: Fu Lei, Fang Hongyuan
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:MATEC Web of Conferences
Online Access:https://doi.org/10.1051/matecconf/201822101008
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author Fu Lei
Fang Hongyuan
author_facet Fu Lei
Fang Hongyuan
author_sort Fu Lei
collection DOAJ
description The interaction between plastic deformation and hydrogen damage behavior of 30CrMnSiNi2A steel was investigated by pre-strain tensile tests and hydrogen charging by electrochemical method. This paper mainly contains two parts. The plastic deformation was restrained by hydrogen-charged, and the effect of hydrogen brittleness damage behavior was accelerated by pre-plastic deformation measure. Tensile pre-strian tests with hydrogen charging at current density from 0 to 50 mA/cm2 for 120 min were performed at room temperature. Both rate of reduction in areaand elongation were decreased due to the transition from ductile to brittle fracture by hydrogen charging, which meant the ability of plastic deformation was reduced by hydrogen. With hydrogen concentration increasing, yield strength also increased indicating that the plastic deformation forming conditions of steel were improved by hydrogen. Hydrogen content increased with pre-strain measured by glycerol gas collection method. Due to the pre-strain measure before hydrogen charging, the reduction of area and elongation were further reduced, while the strength was unexpectedly low. It was because pre-strain promoted the formation of hydrogen-induced crackings (HIC). This proved that the plastic deformation promoted the generation of hydrogen damage.
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spelling doaj.art-4d9648d1b5814814a5adfa1299e3f4d32022-12-21T22:40:30ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-012210100810.1051/matecconf/201822101008matecconf_icdme2018_01008Interaction between plastic deformation and hydrogen damage behavior of 30CrMnSiNi2A steelFu LeiFang HongyuanThe interaction between plastic deformation and hydrogen damage behavior of 30CrMnSiNi2A steel was investigated by pre-strain tensile tests and hydrogen charging by electrochemical method. This paper mainly contains two parts. The plastic deformation was restrained by hydrogen-charged, and the effect of hydrogen brittleness damage behavior was accelerated by pre-plastic deformation measure. Tensile pre-strian tests with hydrogen charging at current density from 0 to 50 mA/cm2 for 120 min were performed at room temperature. Both rate of reduction in areaand elongation were decreased due to the transition from ductile to brittle fracture by hydrogen charging, which meant the ability of plastic deformation was reduced by hydrogen. With hydrogen concentration increasing, yield strength also increased indicating that the plastic deformation forming conditions of steel were improved by hydrogen. Hydrogen content increased with pre-strain measured by glycerol gas collection method. Due to the pre-strain measure before hydrogen charging, the reduction of area and elongation were further reduced, while the strength was unexpectedly low. It was because pre-strain promoted the formation of hydrogen-induced crackings (HIC). This proved that the plastic deformation promoted the generation of hydrogen damage.https://doi.org/10.1051/matecconf/201822101008
spellingShingle Fu Lei
Fang Hongyuan
Interaction between plastic deformation and hydrogen damage behavior of 30CrMnSiNi2A steel
MATEC Web of Conferences
title Interaction between plastic deformation and hydrogen damage behavior of 30CrMnSiNi2A steel
title_full Interaction between plastic deformation and hydrogen damage behavior of 30CrMnSiNi2A steel
title_fullStr Interaction between plastic deformation and hydrogen damage behavior of 30CrMnSiNi2A steel
title_full_unstemmed Interaction between plastic deformation and hydrogen damage behavior of 30CrMnSiNi2A steel
title_short Interaction between plastic deformation and hydrogen damage behavior of 30CrMnSiNi2A steel
title_sort interaction between plastic deformation and hydrogen damage behavior of 30crmnsini2a steel
url https://doi.org/10.1051/matecconf/201822101008
work_keys_str_mv AT fulei interactionbetweenplasticdeformationandhydrogendamagebehaviorof30crmnsini2asteel
AT fanghongyuan interactionbetweenplasticdeformationandhydrogendamagebehaviorof30crmnsini2asteel