Microstructure evolution and mechanical performance of ternary Zn-0.8Mg-0.2Sr (wt. %) alloy processed by equal-channel angular pressing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00549688" target="_blank" >RIV/68378271:_____/21:00549688 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/21:43922680

Výsledek na webu

<a href="https://doi.org/10.1016/j.msea.2021.141809" target="_blank" >https://doi.org/10.1016/j.msea.2021.141809</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.msea.2021.141809" target="_blank" >10.1016/j.msea.2021.141809</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microstructure evolution and mechanical performance of ternary Zn-0.8Mg-0.2Sr (wt. %) alloy processed by equal-channel angular pressing

Popis výsledku v původním jazyce

In this study, we prepared a Zn-0.8Mg-0.2Sr (wt. %) alloy and processed it by ECAP. The evolution of the microstructure during the processing was observed and discussed in detail. The obtained results revealed the continuous dynamic recrystallization as the prevailing recrystallization mechanism. It affected all the aspects of the microstructure, namely the grain size, residual stresses, and dislocation arrangement. The obtained grain size was in good agreement with both empirical and theoretical relations predicting the minimal (0.4–0.6 μm) and average (2.5 μm) grain size. The compressive tests revealed the relations between alignment of the intermetallic regions, texture of the Zn matrix, and resulting mechanical performance of the material. The compressive yield strength of the material ranged from 230 to 250 MPa in the individual directions, and the tensile yield strength reached the value of approximately 200 MPa. The resulting mechanical properties were almost isotropic in the individual directions and fulfilled the basic requirements for applications in implantology, particularly, for maxillofacial, cranial or orthopaedic implants.

Název v anglickém jazyce

Microstructure evolution and mechanical performance of ternary Zn-0.8Mg-0.2Sr (wt. %) alloy processed by equal-channel angular pressing

Popis výsledku anglicky

In this study, we prepared a Zn-0.8Mg-0.2Sr (wt. %) alloy and processed it by ECAP. The evolution of the microstructure during the processing was observed and discussed in detail. The obtained results revealed the continuous dynamic recrystallization as the prevailing recrystallization mechanism. It affected all the aspects of the microstructure, namely the grain size, residual stresses, and dislocation arrangement. The obtained grain size was in good agreement with both empirical and theoretical relations predicting the minimal (0.4–0.6 μm) and average (2.5 μm) grain size. The compressive tests revealed the relations between alignment of the intermetallic regions, texture of the Zn matrix, and resulting mechanical performance of the material. The compressive yield strength of the material ranged from 230 to 250 MPa in the individual directions, and the tensile yield strength reached the value of approximately 200 MPa. The resulting mechanical properties were almost isotropic in the individual directions and fulfilled the basic requirements for applications in implantology, particularly, for maxillofacial, cranial or orthopaedic implants.

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

Materials Science and Engineering A Structural Materials Properties Microstructure and Processing

ISSN

0921-5093

e-ISSN

1873-4936

Svazek periodika

824

Číslo periodika v rámci svazku

Sept.

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

141809

Kód UT WoS článku

000687730600003

EID výsledku v databázi Scopus

2-s2.0-85111294220