The use of Al–Al2O3 cold spray coatings to improve the surface properties of magnesium alloys

By K. Spencer, D. Fabijanic, Mingxing Zhang. 2009

299 citations recorded by the source corpus.

Pure Al and 6061 aluminium alloy based Al2O3 particle-reinforced composite coatings were produced on AZ91E substrates using cold spray. The strength of the coating/substrate interface in tension was found to be stronger than the coating itself The coatings have corrosion resistance similar to that of bulk pure aluminium in both salt spray and electrochemical tests. The wear resistance of the coatings is significantly better than that of the AZ91 Mg substrate, but the significant result is that the wear rate of the coatings is several decades lower than that of various bulk Al alloys tested for comparison. The effect of post-spray heat treatment, the volume fraction of Al2O3 within the coating and of the type of Al powder used in the coatings on the corrosion and wear resistance was also discussed.

Subfields: Aerospace Engineering, Biomaterials, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/01b700c20043b718fcd9e913a9e6a830f0cddca5

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Aerospace Engineering

1. J. Villafuerte
2. M. Rokni
3. R. Hrabe
4. Steven Nutt
5. Christian A. Widener
6. V. Champagne
7. G. Song
8. A. Atrens

In Biomaterials

1. J. Villafuerte
2. G. Song
3. S. Feliu
4. A. Atrens
5. Ming Liu
6. Nick Birbilis
7. Zhiming Shi
8. N. Kirkland

In Mechanical Engineering

1. J. Villafuerte
2. R. Hrabe
3. Steven Nutt
4. Christian A. Widener
5. V. Champagne
6. M. Rokni
7. G. Song
8. S. Feliu

Citations in the corpus

• Modern Cold Spray: Materials, Process, and Applications (2015, background): “77 presents SEM images of worn surfaces of cold-sprayed Al and Al + 75 % Al2O3 coating surfaces after sliding wear test (Spencer et al. 2009).”
• Review of Relationship Between Particle Deformation, Coating Microstructure, and Properties in High-Pressure Cold Spray (2017, background): “with sacrificial protection for the substrate [5, 16, 142, 252-263], 2 – a passive oxide layer [231, 264-266], or 3 - a dense cathodic or corrosion resistant protective layer [142, 269-274].”
• Microstructure and corrosion performance of a cold sprayed aluminium coating on AZ91D magnesium alloy (2010, background): “Al contained coatings have been successfully deposited on different substrates by CS [26–34].”