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Physical and electrochemical characteristics of low pressure cold sprayed aluminium composite coating on magnesium substrate

  • Guosheng Huang
Published/Copyright: October 30, 2018
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 109 Issue 11

Abstract

A high Al2O3 content (40 wt.%) reinforced Al coating was deposited on AZ91D magnesium alloy through the low-pressure cold spraying technique. It was found that the low-pressure cold spraying method could deposit a high quality aluminium coating on AZ91D magnesium alloy with bonding strength ranging from 17.7 MPa to 25.2 MPa. The average porosity in this case is about 2.6 %, and the alumina particles are distributed uniformly. Electrochemical tests revealed that the low-pressure cold sprayed Al + 40 % Al2O3 coating has better corrosion resistance than magnesium in neutral 3.5 wt.% sodium chloride solution. Low-pressure cold sprayed aluminium coating can separate the magnesium substrate from a corrosive electrolyte, which can significantly improve the anticorrosion performance of the AZ91D magnesium alloy.

Keywords: Low-pressure cold spraying; Composite coating; Magnesium; Corrosion
*Correspondence address, Guosheng Huang, Ph.D., Science and Technology on Marine Corrosion and Protection Laboratory, Luoyang Ship Material Research Institute, Aoshanwei Town, Wenhai Road, Qingdao, 266101, P.R. China, Tel.: +86-532-68725121, Fax: +86-532-68725100, E-mail:

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Received: 2018-02-24
Accepted: 2018-06-06
Published Online: 2018-10-30
Published in Print: 2018-11-12

© 2018, Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. An artificial intelligence paradigm in heuristic search of tensile behaviour of titanium alloys
  5. The effect of the cooling rate on the course of oxidation of gamma titanium aluminide alloy
  6. Physical and electrochemical characteristics of low pressure cold sprayed aluminium composite coating on magnesium substrate
  7. The effect of Al2O3 reinforcement particles on the corrosion behavior of Al(Zn) solid solution matrix
  8. Effect of Zr content on the existence form of Zr and as-cast structure of high purity commercial aluminium
  9. Ethylenediamine-assisted synthesis of barium bismuthate microrods and solar light photocatalytic performance
  10. Structural evolution and formation mechanism of LiNi0.6Co0.2Mn0.2O2 during high-temperature solid-state synthesis
  11. Review
  12. Wear behaviour of Mg alloys and their composites – a review
  13. Short Communications
  14. Low-temperature sintering of 0.96(K0.5Na0.5)NbO3-0.04LiNbO3 lead-free piezoelectric ceramics modified with CuO
  15. DGM News
  16. DGM News
https://doi.org/10.3139/146.111699
Keywords for this article
Low-pressure cold spraying; Composite coating; Magnesium; Corrosion

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. An artificial intelligence paradigm in heuristic search of tensile behaviour of titanium alloys
  5. The effect of the cooling rate on the course of oxidation of gamma titanium aluminide alloy
  6. Physical and electrochemical characteristics of low pressure cold sprayed aluminium composite coating on magnesium substrate
  7. The effect of Al2O3 reinforcement particles on the corrosion behavior of Al(Zn) solid solution matrix
  8. Effect of Zr content on the existence form of Zr and as-cast structure of high purity commercial aluminium
  9. Ethylenediamine-assisted synthesis of barium bismuthate microrods and solar light photocatalytic performance
  10. Structural evolution and formation mechanism of LiNi0.6Co0.2Mn0.2O2 during high-temperature solid-state synthesis
  11. Review
  12. Wear behaviour of Mg alloys and their composites – a review
  13. Short Communications
  14. Low-temperature sintering of 0.96(K0.5Na0.5)NbO3-0.04LiNbO3 lead-free piezoelectric ceramics modified with CuO
  15. DGM News
  16. DGM News
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