Microstructure evolution and mechanical behaviour of severely deformed pure titanium through multi directional forging

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10405719" target="_blank" >RIV/00216208:11320/19:10405719 - isvavai.cz</a>

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=D_9S1eBFYz" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=D_9S1eBFYz</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2018.10.196" target="_blank" >10.1016/j.jallcom.2018.10.196</a>

Result language

angličtina

Original language name

Microstructure evolution and mechanical behaviour of severely deformed pure titanium through multi directional forging

Original language description

Multi directional forging (MDF) is one of the severe plastic deformation methods utilized for production of ultrafine grained materials with improved mechanical properties. The main goal of the current study is to enhance mechanical properties of commercial pure (CP) titanium using grain refinement by MDF method. For this purpose, after one hour annealing at 800 degrees C, the CP titanium was forged by MDF process up to six passes at room and 220 degrees C temperatures. The results of microstructure analysis by scanning electron microscope equipped with EBSD showed that average grain size of samples after six MDF passes at room and 220 degrees C temperatures was about 60 times finer than that of the annealed specimen. The mean grain size of the titanium is reduced from 64 mu m to 1 mu m after 6 passes at room temperature. Also, the tensile and shear strengths are notably improved by increasing number of MDF passes and reduction of the processing temperature. Yield tensile and shear strengths of six passes MDFed samples at room temperature were about 2.5 times greater than those of the annealed specimen. The correlation between tensile and shear strengths was studied as well. The ratio between yield tensile and shear strengths and also between ultimate tensile and shear strengths was achieved about 1.5 and 2, respectively. (C) 2018 Elsevier B.V. All rights reserved.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/GB14-36566G" target="_blank" >GB14-36566G: Multidisciplinary research centre for advanced materials</a><br>

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

—

Volume of the periodical

776

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

83-95

UT code for WoS article

000453826200011

EID of the result in the Scopus database

2-s2.0-85055581681