Desarrollo de capas de AlN sobre aleaciones de aluminio como protecci\'on superficial contra la corrosi\'on y el desgaste

TL;DR

This paper investigates the deposition of aluminum nitride (AlN) layers on Al 7075 alloys using reactive magnetron sputtering to enhance corrosion and wear resistance.

Contribution

It introduces a novel application of AlN coatings on Al alloys via reactive magnetron sputtering for surface protection.

Findings

AlN coatings improved corrosion resistance.

AlN layers enhanced wear resistance.

Successful deposition of AlN on Al 7075.

Abstract

Aluminum and their alloys, after careful treatments, can develop excellent mechanical, tribological, electrical and chemical (high corrosion resistance) properties. However, 7000 series, with Cu in the alloy, have a poor corrosion resistance. On the other hand, aluminum nitride (AlN) has a wurtzitic phase and good thermal stability, optical, electric, piezoelectric, mechanical, tribological, and chemical properties, so the application range is huge. In this paper, AlN deposition on Al 7075 was done using the reactive magnetron sputtering technique in order to verify the aluminum nitride performance as an Al alloy protective film under wear and corrosive processes.