Microhardness analysis of thin metallic multilayer composite films on copper substrates
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Composite systems of alternately electrodeposited nanocrystalline Ni and Cu films on cold-rolled polycrystalline copper substrates were fabricated. Highly-densified parallel interfaces which can give rise to high strength of composites are obtained by depositing layers at a very narrow spacing. The hardness properties of the composite systems were characterized using Vickers microhardness testing with loads ranging from 1.96 N down to 0.049 N. Above a certain critical penetration depth, a measured hardness value is not the hardness of the electrodeposited film, but the so-called 'composite hardness', because the substrate also participates in the plastic deformations during the indentation process. Dependence of microhardness on layer thickness, Ni/Cu layer thickness ratio and total thickness of the film was investigated. Model of Korsunsky was applied to the experimental data in order to determine the composite film hardness. The microhardness increased with decreasing the layer thick...ness down to 30 nm and it is consistent with the Hall-Petch relation. Layer thickness and layer thickness ratio are the important parameters which are responsible for making decision of the total film thickness.
Ključne reči:
composite hardness / Vickers microhardness / hardness models / Ni/Cu electrodeposition / multilayersIzvor:
Journal of Mining and Metallurgy B: Metallurgy, 2011, 47, 1, 53-61Izdavač:
- University of Belgrade, Technical Faculty, Bor
Finansiranje / projekti:
- Mikro, nano-sistemi i senzori za primenu u elektroprivredi, procesnoj industriji i zaštiti životne sredine (RS-MESTD-Technological Development (TD or TR)-32008)
- Razvoj opreme i procesa dobijanja polimernih kompozitnih materijala sa unapred definisanim funkcionalnim svojstvima (RS-MESTD-Technological Development (TD or TR)-34011)
DOI: 10.2298/JMMB1101053L
ISSN: 1450-5339
WoS: 000288397900007
Scopus: 2-s2.0-79955405955
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Lamovec, Jelena AU - Jović, V. AU - Vorkapić, Miloš AU - Popović, B. AU - Radojević, Vesna AU - Aleksić, Radoslav PY - 2011 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1816 AB - Composite systems of alternately electrodeposited nanocrystalline Ni and Cu films on cold-rolled polycrystalline copper substrates were fabricated. Highly-densified parallel interfaces which can give rise to high strength of composites are obtained by depositing layers at a very narrow spacing. The hardness properties of the composite systems were characterized using Vickers microhardness testing with loads ranging from 1.96 N down to 0.049 N. Above a certain critical penetration depth, a measured hardness value is not the hardness of the electrodeposited film, but the so-called 'composite hardness', because the substrate also participates in the plastic deformations during the indentation process. Dependence of microhardness on layer thickness, Ni/Cu layer thickness ratio and total thickness of the film was investigated. Model of Korsunsky was applied to the experimental data in order to determine the composite film hardness. The microhardness increased with decreasing the layer thickness down to 30 nm and it is consistent with the Hall-Petch relation. Layer thickness and layer thickness ratio are the important parameters which are responsible for making decision of the total film thickness. PB - University of Belgrade, Technical Faculty, Bor T2 - Journal of Mining and Metallurgy B: Metallurgy T1 - Microhardness analysis of thin metallic multilayer composite films on copper substrates EP - 61 IS - 1 SP - 53 VL - 47 DO - 10.2298/JMMB1101053L ER -
@article{ author = "Lamovec, Jelena and Jović, V. and Vorkapić, Miloš and Popović, B. and Radojević, Vesna and Aleksić, Radoslav", year = "2011", abstract = "Composite systems of alternately electrodeposited nanocrystalline Ni and Cu films on cold-rolled polycrystalline copper substrates were fabricated. Highly-densified parallel interfaces which can give rise to high strength of composites are obtained by depositing layers at a very narrow spacing. The hardness properties of the composite systems were characterized using Vickers microhardness testing with loads ranging from 1.96 N down to 0.049 N. Above a certain critical penetration depth, a measured hardness value is not the hardness of the electrodeposited film, but the so-called 'composite hardness', because the substrate also participates in the plastic deformations during the indentation process. Dependence of microhardness on layer thickness, Ni/Cu layer thickness ratio and total thickness of the film was investigated. Model of Korsunsky was applied to the experimental data in order to determine the composite film hardness. The microhardness increased with decreasing the layer thickness down to 30 nm and it is consistent with the Hall-Petch relation. Layer thickness and layer thickness ratio are the important parameters which are responsible for making decision of the total film thickness.", publisher = "University of Belgrade, Technical Faculty, Bor", journal = "Journal of Mining and Metallurgy B: Metallurgy", title = "Microhardness analysis of thin metallic multilayer composite films on copper substrates", pages = "61-53", number = "1", volume = "47", doi = "10.2298/JMMB1101053L" }
Lamovec, J., Jović, V., Vorkapić, M., Popović, B., Radojević, V.,& Aleksić, R.. (2011). Microhardness analysis of thin metallic multilayer composite films on copper substrates. in Journal of Mining and Metallurgy B: Metallurgy University of Belgrade, Technical Faculty, Bor., 47(1), 53-61. https://doi.org/10.2298/JMMB1101053L
Lamovec J, Jović V, Vorkapić M, Popović B, Radojević V, Aleksić R. Microhardness analysis of thin metallic multilayer composite films on copper substrates. in Journal of Mining and Metallurgy B: Metallurgy. 2011;47(1):53-61. doi:10.2298/JMMB1101053L .
Lamovec, Jelena, Jović, V., Vorkapić, Miloš, Popović, B., Radojević, Vesna, Aleksić, Radoslav, "Microhardness analysis of thin metallic multilayer composite films on copper substrates" in Journal of Mining and Metallurgy B: Metallurgy, 47, no. 1 (2011):53-61, https://doi.org/10.2298/JMMB1101053L . .