Počet záznamů: 1
Texture and Differential Stress Development in W/Ni-Co Composite after Rotary Swaging
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SYSNO ASEP 0531359 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Texture and Differential Stress Development in W/Ni-Co Composite after Rotary Swaging Tvůrce(i) Strunz, Pavel (UJF-V) RID, ORCID, SAI
Kocich, R. (CZ)
Canelo-Yubero, David (UJF-V) ORCID, SAI
Macháčková, A. (CZ)
Beran, Přemysl (UJF-V) RID, ORCID, SAI
Krátká, L. (CZ)Celkový počet autorů 6 Číslo článku 2869 Zdroj.dok. Materials. - : MDPI
Roč. 13, č. 12 (2020)Poč.str. 15 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova tugensten heavy alloys ; rotary swaging ; neutron diffraction ; resdual stress ; texture Vědní obor RIV BM - Fyzika pevných látek a magnetismus Obor OECD Condensed matter physics (including formerly solid state physics, supercond.) CEP GA19-15479S GA ČR - Grantová agentura ČR LM2015056 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Výzkumná infrastruktura Reactors LVR-15 and LR-0 II - 90120 - Centrum výzkumu Řež s.r.o. Způsob publikování Open access Institucionální podpora UJF-V - RVO:61389005 UT WOS 000550195100001 EID SCOPUS 85087444735 DOI 10.3390/ma13122869 Anotace Knowledge of texture and residual stresses in tungsten heavy pseudoalloys is substantial for the microstructure optimization. These characteristics were determined in cold and warm rotary swaged W/NiCo composite with help of neutron diffraction. The results were discussed in view of the observed microstructure and mechanical properties. The investigated bars consisted of tungsten agglomerates (bcc lattice) surrounded by NiCo-based matrix (fcc lattice). No preferential crystallographic orientation was found in the as-sintered bar. A strong texture was formed in both the tungsten agglomerates ( fiber texture parallel to the swaging axis) and in the NiCo-based matrix ( fiber texture) after rotary swaging. Although usually of double-fiber texture, the fiber of the fcc structures was nearly missing in the matrix. Further, the cold-swaged bar exhibited substantially stronger texture for both phases which corresponds to the higher measured ultimate tensile strength. The residual stress differences were employed for characterization of the stress state of the bars. The largest residual stress difference (approximate to 400 MPa) was found at the center of the bar deformed at room temperature. The hoop stresses were non-symmetrical with respect to the swaging axis, which was likely caused by the elliptical cross section of the as-sintered bar. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2021 Elektronická adresa https://doi.org/10.3390/ma13122869
Počet záznamů: 1