scholarly journals Laser Surface Melting of Thermally Sprayed Coatings and Effects on the Erosion Behaviors of Coatings

1990 ◽  
Author(s):  
Jia Shu Sun
Keyword(s):  
Erosion Resistance ◽  
Laser Surface ◽  
Solid Particle Erosion ◽  
Particle Erosion ◽  
Laser Melting ◽  
Thermally Sprayed Coatings ◽  
Erosion Mechanisms ◽  
Plasma Sprayed ◽  
Thermally Sprayed ◽  
Sprayed Coatings

In this work the effects of laser melting on the microstructure and the solid particle erosion behavior of flame sprayed Ni-Cr-B- and Fe-Cr-B-alloy coatings, plasma sprayed chromium carbide (Ni-Cr) and (WC-Co) (Ni-Cr) alloy coatings have been studied. The results have shown that laser melting has modified the microstructure of sprayed coatings, eliminated the porosity of sprayed coatings and increased the erosion resistance of the coatings. The erosion mechanisms of these coatings have been investigated.

Effects of Laser Surface Melting on Structure Character and Erosion Resistance of Plasma Sprayed Ceramic Coatings

1989 ◽  
Vol 157 ◽  
Author(s):  
Jia-Shu Sun
Keyword(s):  
Erosion Resistance ◽  
Ceramic Coatings ◽  
Laser Surface ◽  
Solid Particle Erosion ◽  
Particle Erosion ◽  
Laser Melting ◽  
Erosion Mechanisms ◽  
Plasma Sprayed ◽  
Micro Morphology ◽  
Sprayed Coatings

ABSTRACTIn this work the effects of laser melting on the micro-morphology, structures and solid particle erosion behaviors of plasma spray alumina, alumina-titania and zirconia coatings have been studied. The results have indicated that laser melting has modified the micro-mophologies and structures of coatings, eliminated the porosity of sprayed coatings and increased the erosion resistance of ceramic coatings. The erosion mechanisms of ceramic coatings have been investigated.

Microstructural Characteristic and Solid Particle Erosion Behavior of Plasma-Sprayed Ni60/Ni-WC Composite Coating

2021 ◽  
Vol 904 ◽  
pp. 512-518
Author(s):  
Dong Sheng Wang ◽  
Yang Zhi Fang ◽  
Guang Qu ◽  
Xing Hua Zhou
Keyword(s):  
Weight Loss ◽  
Composite Coating ◽  
Plasma Spraying ◽  
Solid Particle ◽  
Erosion Resistance ◽  
Parent Phase ◽  
Solid Particle Erosion ◽  
Particle Erosion ◽  
Lamellar Structures ◽  
Plasma Sprayed

A Ni60/Ni-WC composite coating was fabricated by the plasma spraying technology and microstructure of the coating was analyzed. Moreover, erosion resistance of the coating under different erosion angles was tested. Results demonstrated that the coating has lamellar structures and contain some pores. WC particles distribute evenly in the coating and bond well with the parent phase. When the erosion angle increase, the weight loss of the erosion-induced coating increases firstly and then decreases, showing plastic-brittle composite erosion characteristics.

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