Počet záznamů: 1
Mechanical and Fatigue Properties of Diamond-Reinforced Cu and Al Metal Matrix Composites Prepared by Cold Spray
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SYSNO ASEP 0555684 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Mechanical and Fatigue Properties of Diamond-Reinforced Cu and Al Metal Matrix Composites Prepared by Cold Spray Tvůrce(i) Kovařík, O. (CZ)
Čížek, Jan (UFP-V) ORCID
Yin, S. (IE)
Lupoi, R. (IE)
Janovská, Michaela (UT-L) RID, ORCID
Čech, J. (CZ)
Čapek, J. (CZ)
Siegl, J. (CZ)
Chráska, Tomáš (UFP-V) RID, ORCIDCelkový počet autorů 9 Zdroj.dok. Journal of Thermal Spray Technology. - : Springer - ISSN 1059-9630
Roč. 31, 1-2 (2022), s. 217-233Poč.str. 17 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova cold spray ; processing diamond metal matrix composites, mechanical properties ; properties ; properties, fatigue ; properties, fracture Vědní obor RIV JK - Koroze a povrchové úpravy materiálů Obor OECD Coating and films CEP EF16_019/0000778 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA20-12624S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UFP-V - RVO:61389021 ; UT-L - RVO:61388998 UT WOS 000746787300001 EID SCOPUS 85123578896 DOI 10.1007/s11666-022-01321-3 Anotace Diamond-reinforced metal matrix composites (DMMC) prepared by cold spray are emerging materials simultaneously featuring outstanding thermal conductivity and wear resistance. In our paper, their mechanical and fatigue properties relevant to perspective engineering applications were investigated using miniature bending specimens. Two different diamond mass concentrations (20 and 50%) embedded in two metal matrices (Al—lighter than diamond, Cu—heavier than diamond) were compared with the respective cold-sprayed pure metals, as well as bulk Al and Cu references. The pure Al, Cu coatings showed properties typical for cold spray deposits, i.e., decreased elastic moduli (50 GPa for Al, 80 GPa for Cu), limited ductility (< 1 × 10−3) and low fracture toughness (3.8 MPa·m0.5 for Al, 5.6 MPa·m0.5 for Cu) when compared to the bulks. Significantly improved properties (strain at fracture, ultimate strength, fatigue crack growth resistance, fracture toughness) were then observed for the produced DMMC. The improvement can be explained by a combination of two factors: changes in the properties of the metallic matrix triggered by the reinforcement particles peening effect and stress redistribution due to the particles presence. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2022 Elektronická adresa https://link.springer.com/article/10.1007/s11666-022-01321-3
Počet záznamů: 1