Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Comparison of cold sprayed and arc sprayed Zn15Al alloy coating on AZ91D magnesium substrate

Comparison of cold sprayed and arc sprayed Zn15Al alloy coating on AZ91D magnesium substrate The purpose of this paper is to examine the performance of cold-sprayed Zn15Al alloy coating whether it is capable of protecting magnesium alloy from corrosion, and to compare it with arc-sprayed Zn15Al alloy coating.Design/methodology/approachIn this paper, Zn15Al alloy coating was prepared with CS-6000 cold spraying system and HDX-800 arc-sprayed system. Corrosion behaviors of the two kinds of coatings were examined with potentiodynamic polarization curves methods combined with SEM, EDS, XRD, etc.FindingsCorrosion behavior of cold-sprayed Zn15Al alloy coating is superior to arc-sprayed Zn15Al alloy coating. The bonding strength and density of cold-sprayed Zn15Al alloy coating is much higher than that of arc-sprayed Zn15Al alloy coating. The cold-sprayed coating has a dense structure which separate magnesium from corrosion medium completely. The samples behave as Zn15Al instead of AZ91D alloy. The coating has a low probability of pitting corrosion comparing with cold sprayed Al coating through potentiodynamic polarization curve.Practical implicationsCold-sprayed Zn15Al coating can be used to improve the anticorrosion performance of magnesium significantly and low down the risk of pitting corrosion of coating.Social implicationsCold-sprayed Zn15Al coating is an environmentally friendly anticorrosion method for light alloy, which is also the most effective way among thermal spray, chemical vapor deposition, sol–gel, plating and anodizing or microarc oxidation.Originality/valueThe present paper used cold spray method to deposit Zn15Al coating, which has an overwhelming performance both in physical and anticorrosion to traditional thermal spray method. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Anti-Corrosion Methods and Materials Emerald Publishing

Comparison of cold sprayed and arc sprayed Zn15Al alloy coating on AZ91D magnesium substrate

Download PDF
10 pages

Loading next page...
 
/lp/emerald-publishing/comparison-of-cold-sprayed-and-arc-sprayed-zn15al-alloy-coating-on-X5p7NQZC9E
Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
0003-5599
DOI
10.1108/acmm-09-2018-2001
Publisher site
See Article on Publisher Site

Abstract

The purpose of this paper is to examine the performance of cold-sprayed Zn15Al alloy coating whether it is capable of protecting magnesium alloy from corrosion, and to compare it with arc-sprayed Zn15Al alloy coating.Design/methodology/approachIn this paper, Zn15Al alloy coating was prepared with CS-6000 cold spraying system and HDX-800 arc-sprayed system. Corrosion behaviors of the two kinds of coatings were examined with potentiodynamic polarization curves methods combined with SEM, EDS, XRD, etc.FindingsCorrosion behavior of cold-sprayed Zn15Al alloy coating is superior to arc-sprayed Zn15Al alloy coating. The bonding strength and density of cold-sprayed Zn15Al alloy coating is much higher than that of arc-sprayed Zn15Al alloy coating. The cold-sprayed coating has a dense structure which separate magnesium from corrosion medium completely. The samples behave as Zn15Al instead of AZ91D alloy. The coating has a low probability of pitting corrosion comparing with cold sprayed Al coating through potentiodynamic polarization curve.Practical implicationsCold-sprayed Zn15Al coating can be used to improve the anticorrosion performance of magnesium significantly and low down the risk of pitting corrosion of coating.Social implicationsCold-sprayed Zn15Al coating is an environmentally friendly anticorrosion method for light alloy, which is also the most effective way among thermal spray, chemical vapor deposition, sol–gel, plating and anodizing or microarc oxidation.Originality/valueThe present paper used cold spray method to deposit Zn15Al coating, which has an overwhelming performance both in physical and anticorrosion to traditional thermal spray method.

Journal

Anti-Corrosion Methods and Materials – Emerald Publishing

Published: Aug 9, 2019

Keywords: Corrosion; Cold spray; Magnesium; Surface preparation; Coatings and linings

References

  • Bonding mechanism in cold gas spraying
    Assadi, H.; Gärtner, F.; Stoltenhoff, T.; Kreye, H.
  • Dissimilar metal joining and structural repair of ZE41A-T5 cast magnesium by the cold spray (cs) process
    Champagne, V.; Kaplowitz, D.; Champagne, V.K.; Howe, C.; West, M.K.; McNally, B.; Rokni, M.
  • Cold spray Al-5% Mg coatings for the corrosion protection of magnesium alloys
    Deforce, B.S.; Eden, T.J.; Potter, J.K.
  • Review on cold spray process and technology: part I – intellectual property
    Eric, I.G.; Legoux, A.N.; Ryabinin, B.; Jodoin, C.M.
  • Protective coatings on magnesium and its alloys: a critical review
    Gray, J.E.; Luan, B.
  • Corrosion studies of magnesium
    Hanawalt, J.D.; Nelson, C.E.; Peloubet, J.A.
  • Cold spraying of titanium: a review of bonding mechanisms, microstructure and properties
    Hussain, T.
  • Critical particle velocity under cold spray conditions
    Raletz, F.; Vardelle, M.; Ezo'O, G.
  • Corrosion resistance of magnesium alloys
    Shaw, B.A.; Wolfe, R.C.
  • Residual stress induced by cold spray coating of magnesium AZ31B extrusion
    Shayegan, G.; Mahmoudi, H.; Ghelichi, R.; Villafuerte, J.; Wang, J.; Guagliano, M.
  • Corrosion mechanisms of magnesium alloys
    Song, G.L.; Atrens, A.
  • Microstructure and corrosion performance of a cold sprayed aluminum coating on AZ91D magnesium alloy
    Tao, Y.; Xiong, T.; Sun, C.
  • Cold-sprayed AZ91D coating and SiC/AZ91D composite coatings
    Wang, Y.; Normand, B.; Suo, X.
  • Optimization of in-situ shot-peening-assisted cold spraying parameters for full corrosion protection of Mg alloy by fully dense Al-based alloy coating
    Wei, Y.; Luo, X.; Li, C.
  • Apparatus for gas-dynamic coating
    Kashirin, A.; Klyuev, O.; Buzdygar, T.
  • Microstructure and mechanical properties of low-pressure cold-sprayed (LPCS) coatings
    Koivuluoto, H.; Lagerbom, J.; Kylmalahti, M.