Influence of Laser Power on the Microstructure and Anti-Corrosion Performance of LHPS NiCrAlY Coatings

Shu Qing Li; Shui Li Gong; Yu Ping Duan; Shun Hua Liu

doi:10.4028/www.scientific.net/AMR.415-417.221

Paper Titles

Hysteresis Heat Build-up and Low Temperature Processing of Polymer under the Vibration Force Field
p.200

TiCl₄ Treatment to the Substrate of Dye-Sensitized Solar Cell for the Applications on BIPV
p.205

Microstructure Analysis of in-Plane Quasi-Isotropic Composites Reinforced by Multi-Direction and Multi-Layer Three Dimensional Fabric
p.210

Study on Optimal Design of Light-Weight Composite Hood
p.214

Influence of Laser Power on the Microstructure and Anti-Corrosion Performance of LHPS NiCrAlY Coatings
p.221

Synthesis of Alumina-Tungsten Carbide Composites by Self-Propagating High Temperature Synthesis Process
p.226

Study on a Anti-Optimization Method to Identify the Parameters of the Frequency Correlation Viscoelastic Model for Rubber
p.232

Particle Size, Structure and Powdering Process of Calcium Carbonate Nanoparticles Filled Powdered Styrene-Butadiene Rubber
p.237

Fabrication Mechanism of in-Situ Synthesized Al₃Ti-Mg Composites by Vacuum Hot-Pressing
p.243

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 415-417Influence of Laser Power on the Microstructure and...

Influence of Laser Power on the Microstructure and Anti-Corrosion Performance of LHPS NiCrAlY Coatings

Abstract:

The NiCrAlY coatings were deposited on 38CrMoAl substrate by a laser hybrid plasma spraying (LHPS) technology in this study. The coatings’ microstructures and anti-corrosion performances with different laser power were characterized using an optical microscope, a scanning electron microscope, and the Neutral Salt Spray(NSS) test. The test results indicate that the laser power has great effect on the microstructure and performances of the LHPS coatings. And when the laser power is appropriate, it can make the coating has more compact and homogeneous microstructure, exhibit less porosities or micro-cracks, higher bonding strength and more excellent anti-corrosion performance.