Layers obtained on aluminum by nanopowder deposition and subsequent electron beam scanning

ABSTRACT

The scanning circular rotating motion of the electron beam is used for embedding unclad TiCN nanoparticles in the aluminum matrix. The most appropriate treatment conditions for obtaining layers with significant thickness and high microhardness are reported. Layers with thickness 14–33 µm and microhardness 562–798 kg/mm², which is 16–22 times higher than the substrate microhardness, are obtained. Possible strengthening mechanisms of the layers are discussed. The layers, chemical, and phase compositions are investigated by EDX detector of SEM and XRD. The complex investigation is completed with TEM analysis. Incorporated TiCN nanoparticles are observed in the aluminum matrix. Layers with such characteristics could be convenient for details to which high surface hardness and light, soft, and plastic base metal are required.

KEYWORDS:

• Aluminum
• diffraction
• EBT
• layers
• nanoparticles
• nanopowders
• substrate
• surface

Additional information

Funding

This work is financially supported by the Fund “Scientific Researches” at the Ministry of Education and Science, Bulgaria, Contract DH07/16.