Effect of hydrogen on generation of lattice defects in shock-loaded Pd
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10315701" target="_blank" >RIV/00216208:11320/15:10315701 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.jallcom.2014.12.079" target="_blank" >http://dx.doi.org/10.1016/j.jallcom.2014.12.079</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2014.12.079" target="_blank" >10.1016/j.jallcom.2014.12.079</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Effect of hydrogen on generation of lattice defects in shock-loaded Pd
Popis výsledku v původním jazyce
The effect of hydrogen absorbed in fcc Pd lattice on the generation of dislocations and vacancies during plastic deformation by shock-loading was investigated in this work. Well annealed bulk Pd samples were firstly charged with hydrogen up to various hydrogen concentrations. Subsequently the samples were shock-loaded on a Split-Hopkinson apparatus. Shock-loading yields extremely high strain rate and causes intensive plastic deformation of the samples. Lattice defects of the shock-loaded samples were characterized by positron lifetime spectroscopy combined with X-ray diffraction. It was found that shock-loaded Pd samples exhibit not only high density of dislocations but also small vacancy clusters created by agglomeration of deformation-induced vacancies. Pre-charging of Pd samples with hydrogen increases both the dislocation density and the concentration of vacancy clusters.
Název v anglickém jazyce
Effect of hydrogen on generation of lattice defects in shock-loaded Pd
Popis výsledku anglicky
The effect of hydrogen absorbed in fcc Pd lattice on the generation of dislocations and vacancies during plastic deformation by shock-loading was investigated in this work. Well annealed bulk Pd samples were firstly charged with hydrogen up to various hydrogen concentrations. Subsequently the samples were shock-loaded on a Split-Hopkinson apparatus. Shock-loading yields extremely high strain rate and causes intensive plastic deformation of the samples. Lattice defects of the shock-loaded samples were characterized by positron lifetime spectroscopy combined with X-ray diffraction. It was found that shock-loaded Pd samples exhibit not only high density of dislocations but also small vacancy clusters created by agglomeration of deformation-induced vacancies. Pre-charging of Pd samples with hydrogen increases both the dislocation density and the concentration of vacancy clusters.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BM - Fyzika pevných látek a magnetismus
OECD FORD obor
—
Návaznosti výsledku
Projekt
<a href="/cs/project/GA13-09436S" target="_blank" >GA13-09436S: Nedestruktivní mapování prostorového rozložení defektů v silně deformovaných materiálech</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2015
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Alloys and Compounds
ISSN
0925-8388
e-ISSN
—
Svazek periodika
645
Číslo periodika v rámci svazku
Supplement 1
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
4
Strana od-do
"S472"-"S475"
Kód UT WoS článku
000360404100106
EID výsledku v databázi Scopus
2-s2.0-84938963690