Počet záznamů: 1
Slip activity in molybdenum single crystals compressed at77 K
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SYSNO ASEP 0495464 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Slip activity in molybdenum single crystals compressed at77 K Tvůrce(i) Gröger, Roman (UFM-A) RID, ORCID
Chlup, Zdeněk (UFM-A) RID, ORCID
Kuběna, Ivo (UFM-A) RID, ORCID
Kruml, Tomáš (UFM-A) RID, ORCIDCelkový počet autorů 4 Zdroj.dok. Philosophical Magazine. - : Taylor & Francis - ISSN 1478-6435
Roč. 98, č. 30 (2018), s. 2749-2768Poč.str. 20 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova molybdenum ; slip traces ; plasticity ; low temperature ; cross-slip Vědní obor RIV BM - Fyzika pevných látek a magnetismus Obor OECD Condensed matter physics (including formerly solid state physics, supercond.) CEP LQ1601 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA16-13797S GA ČR - Grantová agentura ČR Institucionální podpora UFM-A - RVO:68081723 UT WOS 000444441500003 EID SCOPUS 85051828477 DOI 10.1080/14786435.2018.1505056 Anotace High-purity single crystals of molybdenum of five different orientations were compressed at 77 K to plastic strains between 3% and 4% to investigate the initial stage of plastic flow in these metals. Electron back-scatter diffraction was used to determine the sample orientations before and after deformation to quantify the magnitude and direction of lattice rotation. The slip trace analysis on two perpendicular faces of each prismatic specimen, made using the Nomarski interference contrast, reveals that the slip morphology depends strongly on the orientation of the applied load. The sample oriented near the [001] axis and that of the centre-triangle orientation exhibited sharp slip traces on (101) and (101) planes, whereas the samples oriented near the [011] -[111] edge of the triangle yielded by macroscopic slip on a series of high-index planes. The orientations of observed slip traces were compared with theoretical predictions of slip activity of the twelve {110} 111 slip systems made by the Schmid law and using the effective yield criterion developed previously using molecular statics simulations of an isolated 1/2[111] screw dislocation under stress Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2019
Počet záznamů: 1