A study of plastic deformation behaviour of Ti alloy during equal channel angular pressing with partial back pressure

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F15%3A86095081" target="_blank" >RIV/61989100:27360/15:86095081 - isvavai.cz</a>

Výsledek na webu

<a href="http://ac.els-cdn.com/S0927025615000622/1-s2.0-S0927025615000622-main.pdf?_tid=b1290be2-c43b-11e5-9630-00000aab0f26&acdnat=1453819815_4270ff753fdbcbbc3b09fc4a9c8a38e3" target="_blank" >http://ac.els-cdn.com/S0927025615000622/1-s2.0-S0927025615000622-main.pdf?_tid=b1290be2-c43b-11e5-9630-00000aab0f26&acdnat=1453819815_4270ff753fdbcbbc3b09fc4a9c8a38e3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.commatsci.2015.02.003" target="_blank" >10.1016/j.commatsci.2015.02.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A study of plastic deformation behaviour of Ti alloy during equal channel angular pressing with partial back pressure

Popis výsledku v původním jazyce

Equal channel angular pressing with partial back pressure (ECAP PBP) accumulates large strains in a processed sample, while extruding it through a die with a modified geometry. In order to investigate the deformation behaviour of Ti6Al4V in detail, an ECAP PBP three-dimensional finite element model has been developed using FORGE software. The analysis included the influence of geometry and heterogeneity of plastic deformation. Numerical results showed that partial back pressure, as well as the other modelled factors, significantly affects size and homogeneity of the imposed strain, temperature and stability of material plastic flow. Average value of imposed strain was approx.1.58. Strain distribution was the most homogenous for the higher friction coefficient; its homogeneity was confirmed by micro-hardness testing. The results show the lowest temperature increase of the billet during ECAP PBP process. Using the partial back pressure, dead zone was eliminated. It also featured the high

Název v anglickém jazyce

A study of plastic deformation behaviour of Ti alloy during equal channel angular pressing with partial back pressure

Popis výsledku anglicky

Equal channel angular pressing with partial back pressure (ECAP PBP) accumulates large strains in a processed sample, while extruding it through a die with a modified geometry. In order to investigate the deformation behaviour of Ti6Al4V in detail, an ECAP PBP three-dimensional finite element model has been developed using FORGE software. The analysis included the influence of geometry and heterogeneity of plastic deformation. Numerical results showed that partial back pressure, as well as the other modelled factors, significantly affects size and homogeneity of the imposed strain, temperature and stability of material plastic flow. Average value of imposed strain was approx.1.58. Strain distribution was the most homogenous for the higher friction coefficient; its homogeneity was confirmed by micro-hardness testing. The results show the lowest temperature increase of the billet during ECAP PBP process. Using the partial back pressure, dead zone was eliminated. It also featured the high

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/LO1203" target="_blank" >LO1203: Regionální materiálově technologické výzkumné centrum - Program udržitelnosti</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Computational Materials Science

ISSN

0927-0256

e-ISSN

—

Svazek periodika

101

Číslo periodika v rámci svazku

15 April

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

233-241

Kód UT WoS článku

000350994700031

EID výsledku v databázi Scopus

2-s2.0-84923325114