Vliv vodíku na mikrostrukturní a mechanické vlastnosti slitin na bázi Ni3Al.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F04%3A00010763" target="_blank" >RIV/61989100:27360/04:00010763 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/04:00102497

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 in intermetallic alloys based on Ni3Al was studied. Four different sets of tensile specimens were prepared: binary, binary and charged by hydrogen, B and Zr-doped and B and Zr-doped and charged by hydrogen. Hydrogen was introduced at 800°C in flowing hydrogen. The tensile tests were performed at room temperature and at strain rate of 5.8 x 10-5 s-1. Yield strength of the binary specimens exhibited increase of 38 % due to hydrogen effect and ultimate tensile strength decreased by 19 %. 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 fracturefeatures and the dislocation structures resulting from SEM and TEM observations, respectively, were affected by the presence of hydrogen in binary and B and Zr-doped alloys. Macroscopic and microscopic strengthening effects of hydrogen ar

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 in intermetallic alloys based on Ni3Al was studied. Four different sets of tensile specimens were prepared: binary, binary and charged by hydrogen, B and Zr-doped and B and Zr-doped and charged by hydrogen. Hydrogen was introduced at 800°C in flowing hydrogen. The tensile tests were performed at room temperature and at strain rate of 5.8 x 10-5 s-1. Yield strength of the binary specimens exhibited increase of 38 % due to hydrogen effect and ultimate tensile strength decreased by 19 %. 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 fracturefeatures and the dislocation structures resulting from SEM and TEM observations, respectively, were affected by the presence of hydrogen in binary and B and Zr-doped alloys. Macroscopic and microscopic strengthening effects of hydrogen ar

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové 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

2004

Kód důvěrnosti údajů

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

Název periodika

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

—

Svazek periodika

Neuveden

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

5

Strana od-do

279-284

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—