Laser surface coating of Mo–WC metal matrix composite on Ti6Al4V alloy

2005 ◽  
Vol 390 (1-2) ◽  
pp. 144-153 ◽  
Author(s):  
W. Pang ◽  
H.C. Man ◽  
T.M. Yue
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Surface Coating ◽  
Metal Matrix ◽  
Laser Surface ◽  
Ti6al4v Alloy

scholarly journals The Influence of Laser Surface Remelting on the Tribological Behavior of the ECAP-Processed AZ61 Mg Alloy and AZ61–Al2O3 Metal Matrix Composite

Materials ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 2688
Author(s):  
Beáta Ballóková ◽  
Ladislav Falat ◽  
Viktor Puchý ◽  
Zuzana Molčanová ◽  
Michal Besterci ◽  
...  
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Normal Load ◽  
Base Material ◽  
Laser Surface ◽  
Laser Source ◽  
Al2o3 Nanoparticles ◽  
Laser Surface Remelting ◽  
Disc Configuration

This paper deals with the tribological study of the laser remelted surfaces of the ECAP-processed AZ61 magnesium alloy and AZ61–Al2O3 metal matrix composite with 10 wt.% addition of Al2O3 nanoparticles. The study included the experimental optimization of the laser surface remelting conditions for the investigated materials by employing a 400 W continual wave fiber laser source. Tribological tests were performed in a conventional “ball-on-disc” configuration with a ceramic ZrO2 ball under a 5 N normal load and a sliding speed of 100 mm/s. The results showed that both the incorporation of Al2O3 nanoparticles and the applied laser treatments led to recognizable improvements in the tribological properties of the studied AZ61–Al2O3 composites in comparison with the reference AZ61 alloy. Thus, the best improvement has been obtained for the laser modified AZ61–10 wt.% Al2O3 nanocomposite showing about a 48% decrease in the specific wear rate compared to the laser untreated AZ61 base material.

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