Počet záznamů: 1
Deformation twinning in vanadium single crystals tested in compression at 77 K
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SYSNO ASEP 0495454 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Deformation twinning in vanadium single crystals tested in compression at 77 K Tvůrce(i) Gröger, Roman (UFM-A) RID, ORCID
Chlup, Zdeněk (UFM-A) RID, ORCID
Kuběnová, Tereza (UFM-A)Celkový počet autorů 3 Zdroj.dok. Materials Science and Engineering A Structural Materials Properties Microstructure and Processing. - : Elsevier - ISSN 0921-5093
Roč. 737, NOV (2018), s. 413-421Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova 77 K ; Compression ; Twinning ; Vanadium Vědní obor RIV BM - Fyzika pevných látek a magnetismus Obor OECD Condensed matter physics (including formerly solid state physics, supercond.) CEP GA16-13797S GA ČR - Grantová agentura ČR LQ1601 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora UFM-A - RVO:68081723 UT WOS 000448493600046 EID SCOPUS 85054305798 DOI 10.1016/j.msea.2018.09.030 Anotace Vanadium is the least studied non-magnetic body centered cubic metal whose mechanism of plastic deformation is still a subject of controversy. Depending on the level of purity and spatial distribution of interstitial impurities, it has been shown to deform by anomalous slip on the low-stressed (01̅1) plane or by twinning along {112} planes in the 〈111〉 direction. In order to resolve this controversy, we test high-purity vanadium single crystals of four orientations at 77 K under a low strain rate to 1–2% of the plastic strain. All our samples contain spatially homogeneous distribution of impurities and deform predominantly by twinning on two {112}⟨111⟩ systems in which the {112} planes are sheared in the twinning sense. The secondary surface markings correspond to slip on {110}⟨111⟩ systems with the highest Schmid factors, whereas weak (01̅1) slip is found mostly in the vicinity of twins. These results support the argument made previously by Thompson and Carlson (1965) that a spatially homogenenous distribution of interstitial impurities in high purity vanadium single crystals leads to predominant twinning. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2019 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0921509318312279?via%3Dihub
Počet záznamů: 1