Influence of hydrogen on microstructure and mechanical properties of alloys based on Ni3Al

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F03%3A00008599" target="_blank" >RIV/61989100:27360/03:00008599 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of hydrogen on microstructure and mechanical properties of alloys based on Ni3Al

Popis výsledku v původním jazyce

The hydrogen-induced effect on mechanical properties, fracture features and on deformation structures was studied in intermetallic alloys based on Ni3Al. Four ensembles of tensile specimens were prepared: stoichiometric, stoichiometric + charged by hydrogen, doped with B and Zr and doped with B and Zr + charged by hydrogen. Hydrogen was introduced at 800°C in flowing hydrogen. The tensile tests were realised at room temperature and at strain rate of 5.8x10-5 s-1. The hydrogen effect resulted in 38 % rise of the yield stress and in 19 % decrease of tensile strength for the non-doped specimens. A similar trend of the hydrogen effect was observed for B and Zr doped alloys, the yield stress increased by 8 % and the tensile strength decreased by 26 %. The fracture features and the dislocation dissociation (resulting from SEM and TEM observations, respectively) were affected by the presence of hydrogen in non-doped and B+Zr doped alloys. Macroscopic and microscopic strengthening effects of h

Název v anglickém jazyce

Influence of hydrogen on microstructure and mechanical properties of alloys based on Ni3Al

Popis výsledku anglicky

The hydrogen-induced effect on mechanical properties, fracture features and on deformation structures was studied in intermetallic alloys based on Ni3Al. Four ensembles of tensile specimens were prepared: stoichiometric, stoichiometric + charged by hydrogen, doped with B and Zr and doped with B and Zr + charged by hydrogen. Hydrogen was introduced at 800°C in flowing hydrogen. The tensile tests were realised at room temperature and at strain rate of 5.8x10-5 s-1. The hydrogen effect resulted in 38 % rise of the yield stress and in 19 % decrease of tensile strength for the non-doped specimens. A similar trend of the hydrogen effect was observed for B and Zr doped alloys, the yield stress increased by 8 % and the tensile strength decreased by 26 %. The fracture features and the dislocation dissociation (resulting from SEM and TEM observations, respectively) were affected by the presence of hydrogen in non-doped and B+Zr doped alloys. Macroscopic and microscopic strengthening effects of h

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/GA106%2F99%2FD070" target="_blank" >GA106/99/D070: Interakce vodíku v intermetalické slitině na bázi Ni3Al</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název statě ve sborníku

9th International Symposium on Physics of Materials

ISBN

—

ISSN

—

e-ISSN

—

Počet stran výsledku

1

Strana od-do

1

Název nakladatele

Departments of Metal Physics, Charles University Prague

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

1. 9. 2003

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—