Influence of the microstructure of the initial material on the Zn wires prepared by direct extrusion with a huge extrusion ratio

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00546341" target="_blank" >RIV/68378271:_____/21:00546341 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/21:00353846

Výsledek na webu

<a href="http://hdl.handle.net/11104/0322899" target="_blank" >http://hdl.handle.net/11104/0322899</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/met11050787" target="_blank" >10.3390/met11050787</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of the microstructure of the initial material on the Zn wires prepared by direct extrusion with a huge extrusion ratio

Popis výsledku v původním jazyce

In this study, we prepared zinc wires with a diameter of 250 µm by direct extrusion using an extrusion ratio of 576. The wires extruded at 300 ◦C possessed a coarse-grained microstructure and the shape of their tensile stress–strain curves suggested that twinning played an important role during their deformation. A significant influence of the initial grain size on the final microstructure was observed after the extrusion at 100 ◦C. The wires prepared from the billet with a very coarse-grained microstructure possessed a bimodal grain size. A significant coarsening of their microstructure was observed after the tensile test. The wires prepared from the medium-grained billets at 100 ◦C were relatively coarse-grained, but their grain size was stable during the straining, resulting in the highest ultimate tensile strength. This preliminary study shows that strong attention should be paid to the extrusion parameters and the microstructure of the initial billets.

Název v anglickém jazyce

Influence of the microstructure of the initial material on the Zn wires prepared by direct extrusion with a huge extrusion ratio

Popis výsledku anglicky

In this study, we prepared zinc wires with a diameter of 250 µm by direct extrusion using an extrusion ratio of 576. The wires extruded at 300 ◦C possessed a coarse-grained microstructure and the shape of their tensile stress–strain curves suggested that twinning played an important role during their deformation. A significant influence of the initial grain size on the final microstructure was observed after the extrusion at 100 ◦C. The wires prepared from the billet with a very coarse-grained microstructure possessed a bimodal grain size. A significant coarsening of their microstructure was observed after the tensile test. The wires prepared from the medium-grained billets at 100 ◦C were relatively coarse-grained, but their grain size was stable during the straining, resulting in the highest ultimate tensile strength. This preliminary study shows that strong attention should be paid to the extrusion parameters and the microstructure of the initial billets.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Metals

ISSN

2075-4701

e-ISSN

2075-4701

Svazek periodika

11

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

787

Kód UT WoS článku

000662682100001

EID výsledku v databázi Scopus

2-s2.0-85105731728