TEM analysis of the deformation microstructure of polycrystalline cobalt plastically strained in tension

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10370108" target="_blank" >RIV/00216208:11320/17:10370108 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.matchar.2017.09.038" target="_blank" >http://dx.doi.org/10.1016/j.matchar.2017.09.038</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matchar.2017.09.038" target="_blank" >10.1016/j.matchar.2017.09.038</a>

Result language

angličtina

Original language name

TEM analysis of the deformation microstructure of polycrystalline cobalt plastically strained in tension

Original language description

The microstructure evolution of hexagonal close-packed cobalt at different stages of work hardening has been studied. The deformation microstructure of polycrystalline samples upon a tension test was investigated by Transmission Electron Microscopy (TEM). Corresponding straining mechanisms were also identified by acoustic emission measurements. It was shown that dislocation glide is the predominant deformation mechanism during the first stage of plastic deformation, while twinning becomes the prominent strain accommodation mechanism in the later stage. A detailed TEM study using electron diffraction allowed identifying different types of twins activated during tensile testing. Four single twinning modes were identified, from which two types correspond to tensile strain and two types to compressive strain (with respect to the c direction), double twins were also observed. A relative importance of various systems is estimated and it is shown that the vast majority of twins correspond to the {10 (1) over bar2} twinning system.

Czech name

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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

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OECD FORD branch

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

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Materials Characterization

ISSN

1044-5803

e-ISSN

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Volume of the periodical

134

Issue of the periodical within the volume

neuveden

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

76-83

UT code for WoS article

000419416400011

EID of the result in the Scopus database

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