0548823 - ÚFP 2022 RIV NL eng J - Journal Article
Veverka, Jakub - Lukáč, František - Kądzielawa, A. P. - Koller, Martin - Chlup, Zdeněk - Hadraba, Hynek - Karlík, M. - Legut, D. - Vontorová, J. - Chráska, Tomáš - Vilémová, Monika
Ultrafine-grained W-Cr composite prepared by controlled W-Cr solid solution decomposition.
Materials Letters. Roč. 304, December (2021), č. článku 130728. ISSN 0167-577X. E-ISSN 1873-4979
R&D Projects: GA ČR(CZ) GA20-18392S
Institutional support: RVO:61389021 ; RVO:68081723 ; RVO:61388998
Keywords : Ab-initio modeling * Decomposition * Mechanical properties * Solid solution * Tungsten-chromium alloys * Ultra-fine grains
OECD category: Materials engineering; Audio engineering, reliability analysis (UFM-A)
Impact factor: 3.574, year: 2021 ; AIS: 0.429, rok: 2021
Method of publishing: Limited access
Result website:
https://www.sciencedirect.com/science/article/pii/S0167577X21014257?via%3DihubDOI: https://doi.org/10.1016/j.matlet.2021.130728

The application of non-equilibrium methods such as Mechanical Alloying and Field Assisted Sintering enables the formation of a single solid solution in immiscible systems, or the ones characterized by a miscibility gap. This work shows that W-Cr solid solution can be used as an intermediate step to produce ultrafine-grained composite alloys with rod-like microstructural features. It is shown that a significant increase in strength can be achieved without an increase in hardness using this top-down material design.
Permanent Link: http://hdl.handle.net/11104/0324871