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Journal of Materials Science
Erschienen in: Journal of Materials Science 14/2020

04.02.2020 | Metals & corrosion

Effect of SiC nanoparticles on the precipitation behavior and mechanical properties of 7075Al alloy

verfasst von: Bowen Pu, Xiaobin Lin, Bowen Li, Xiaofeng Chen, Chunnian He, Naiqin Zhao

Erschienen in: Journal of Materials Science | Ausgabe 14/2020

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Abstract

In terms of aluminum alloy matrix composites, the effect of reinforcement on precipitation is worth investigating. In this work, the silicon carbide nanoparticles-reinforced 7075Al (SiCnp/7075Al) composite was fabricated through a series of powder metallurgy procedures, shift-speed ball milling, hot pressing, and hot extrusion, and the precipitation behavior of SiCnp/7075Al composite was compared with that of 7075Al alloy after T6 treatment. The results show that only a small addition (1 vol%) of SiCnp modifies the morphology and dispersion of precipitates. The uniformly dispersed small precipitates (η′ phase) and increased dislocation density have a positive influence on the mechanical properties of composites. Based on the fracture surface and element composition, a fracture mode dominated by precipitated phase-induced crack initiation was proposed. This study suggests a promising approach to design the alloy matrix composites through controlling the behavior of precipitated phases with nano-reinforcement.
Vorheriger Artikel Metal–organic frameworks (MOFs): a novel support platform for ASNase immobilization
Nächster Artikel Multifunctional nickel nanofiber for effective air purification: PM removal and NO reduction from automobile exhaust

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Metadaten
Titel
Effect of SiC nanoparticles on the precipitation behavior and mechanical properties of 7075Al alloy
verfasst von
Bowen Pu
Xiaobin Lin
Bowen Li
Xiaofeng Chen
Chunnian He
Naiqin Zhao
Publikationsdatum
04.02.2020
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 14/2020
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-020-04381-4

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