scholarly journals Laser Surface Treatment of Magnesium Alloy using ZrO2for Corrosion Resistance

2016 ◽  
Vol 15 (4) ◽  
pp. 93-100 ◽  
Author(s):  
Sangwoo Yoon ◽  
Dongchan Kang ◽  
Joohan Kim
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Surface Treatment ◽  
Laser Surface ◽  
Laser Surface Treatment

Effect of Grain Refinement by Laser Surface Treatment on Cell Adhesion Behavior of AZ91D Magnesium Alloy

2019 ◽  
Vol 49 (3) ◽  
pp. 20180779
Author(s):  
Changgang Guo ◽  
Lingqian Wang ◽  
Jiansong Zhou ◽  
Baocheng Cao ◽  
Yimeng Xu ◽  
...  
Keyword(s):  
Cell Adhesion ◽  
Magnesium Alloy ◽  
Surface Treatment ◽  
Grain Refinement ◽  
Laser Surface ◽  
Laser Surface Treatment ◽  
Az91d Magnesium Alloy ◽  
Adhesion Behavior

Enhancing Corrosion Resistance of Stainless Steel 304 Using Laser Surface Treatment

2008 ◽  
Vol 384 ◽  
pp. 157-183 ◽  
Author(s):  
Ibrahim M. Ghayad ◽  
Madiha Shoeib ◽  
Taha Mattar ◽  
Huda M. Hussain
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Surface Treatment ◽  
Laser Irradiation ◽  
Laser Treatment ◽  
Surface Composition ◽  
Specific Treatment ◽  
Laser Surface ◽  
Laser Surface Treatment ◽  
Aisi 304

Stainless steel AISI 304 was laser treated to enhance corrosion resistance and improve surface properties. . This alloy has many applications in auto industry (car body,) as well as oil and gas industry. Different conditions were applied in the laser surface treatment, namely: laser power density, scan speed, distance between paths, medium gas (air, argon and nitrogen). After laser treatment, the samples microstructures were investigated using optical microscope to examine micro structural changes due to laser irradiation. Specimen surfaces were investigated using XRD, SEM and EDAX before and after laser treatment to examine the surface composition changes brought by laser irradiation. Results showed that laser irradiation enhances the corrosion resistance of AISI 304 Stainless steel to a large extent. Corrosion rates as low as 0.011 mpy for laser treated samples were obtained in comparison to 0.952 mpy obtained for the untreated samples. Superior pitting corrosion resistance was obtained under specific treatment conditions. The enhancement of corrosion resistance depends on the laser irradiation conditions. The corrosion protection afforded by laser treatment is attributed mainly to the grain refinement of the top surface layer. This layer is found to consist of nano-scale grains.

Development of Laser Surface Treatment with Excellent Corrosion Resistance and Conductivity Performance on Magnesium Alloy Products

2010 ◽  
Vol 654-656 ◽  
pp. 1960-1963 ◽  
Author(s):  
Makoto Hino ◽  
Yutaka Mitooka ◽  
Koji Murakami ◽  
Katsuji Nishimoto ◽  
Teruto Kanadani
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Laser Processing ◽  
Processing Condition ◽  
Laser Surface ◽  
Corrosion Performance ◽  
Laser Surface Treatment ◽  
Electrolytic Solution ◽  
Excellent Corrosion Resistance ◽  
The Sacrifice

Effects of the laser processing on corrosion resistance and conductivity for the magnesium alloy products anodized from the phosphate electrolytic solution were examined. The area where anodized coating was removed under the appropriate laser processing condition showed the excellent corrosion performance as well as good conductivity. This improvement of the conductivity is attributable to the removal of the anodized coatings whose conductivity is not good, and excellent corrosion resistance is based on the sacrifice corrosion protection by anodizing from the phosphate electrolytic solution.

scholarly journals Nanosecond, picosecond and femtosecond laser surface treatment of magnesium alloy: Role of pulse length

2021 ◽  
pp. 127802
Author(s):  
P. Pou-Álvarez ◽  
A. Riveiro ◽  
X.R. Nóvoa ◽  
M. Fernández-Arias ◽  
J. del Val ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Femtosecond Laser ◽  
Surface Treatment ◽  
Pulse Length ◽  
Laser Surface ◽  
Laser Surface Treatment
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