Structure of MgLiAl alloys after various routes of severe plastic deformation studied by TEM

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F19%3A10240735" target="_blank" >RIV/61989100:27230/19:10240735 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.hanser-elibrary.com/doi/abs/10.3139/146.111680" target="_blank" >https://www.hanser-elibrary.com/doi/abs/10.3139/146.111680</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3139/146.111680" target="_blank" >10.3139/146.111680</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structure of MgLiAl alloys after various routes of severe plastic deformation studied by TEM

Popis výsledku v původním jazyce

Two MgLiAl alloys consisting either of alpha (hcp) + beta (bcc) phases or only beta phase were subjected to twist channel angular pressing TCAP (with helical component) or cyclic compression to a total strain of epsilon = 5 in order to study the effectiveness of various deformation modes on grain refinement. After the first TCAP pass grains of alpha phase were refined from 30 mu m down to about 6 mu m and of beta phase from initial 200 mu m down to 8 mu m. MAXStrain cycling led to much finer grains of alpha and beta phases in the range 200-300 nm causing higher hardening and indicating higher effectiveness of the process. The Li2MgAl precipitates were refined during severe plastic deformation (SPD) processes and in addition fine particles of hexagonal alpha phase of size below 100 nm were observed within the beta phase showing orientation relationship (0001) alpha parallel to (011) beta. Two-phase material after SPD showed deviation of about 1.5 degrees from the ideal Burgers orientation relationship (0001) alpha parallel to (011) beta.

Název v anglickém jazyce

Structure of MgLiAl alloys after various routes of severe plastic deformation studied by TEM

Popis výsledku anglicky

Two MgLiAl alloys consisting either of alpha (hcp) + beta (bcc) phases or only beta phase were subjected to twist channel angular pressing TCAP (with helical component) or cyclic compression to a total strain of epsilon = 5 in order to study the effectiveness of various deformation modes on grain refinement. After the first TCAP pass grains of alpha phase were refined from 30 mu m down to about 6 mu m and of beta phase from initial 200 mu m down to 8 mu m. MAXStrain cycling led to much finer grains of alpha and beta phases in the range 200-300 nm causing higher hardening and indicating higher effectiveness of the process. The Li2MgAl precipitates were refined during severe plastic deformation (SPD) processes and in addition fine particles of hexagonal alpha phase of size below 100 nm were observed within the beta phase showing orientation relationship (0001) alpha parallel to (011) beta. Two-phase material after SPD showed deviation of about 1.5 degrees from the ideal Burgers orientation relationship (0001) alpha parallel to (011) beta.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

International journal of materials research

ISSN

1862-5282

e-ISSN

—

Svazek periodika

110

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

24-31

Kód UT WoS článku

000455576800005

EID výsledku v databázi Scopus

2-s2.0-85060016895