Laser remelting of NiCoCrAlY clad coating on superalloy

NiCoCrAlY clad coating on the GH140 alloy surface was remelted by laser. The studies show that selecting proper laser remelting parameters can refine the structure in the remelted zone, increase the density of coating, strengthen the interfacial bonding and, moreover, hardly dilute the alloying elem...

Full description

Saved in:
Bibliographic Details
Published inSurface & coatings technology Vol. 79; no. 1; pp. 131 - 134
Main Authors Zhang, Y.P., Zhou, Z.R., Cheng, J.M., Ge, Y.L., Ma, H.
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier B.V 01.02.1996
Elsevier
Subjects
Applied sciences
Clad coating
Corrosion resistance
Exact sciences and technology
Laser-remelting
Metallic coatings
Metals. Metallurgy
Production techniques
Surface treatment
Thermal cycle resistance
Corrosion resistance
Clad coating
Thermal cycle resistance
Laser-remelting
Nickel base alloys
Superalloy
Metal coating
Remelting
Grain refining
Thermal shock resistance
Hardness
Microstructure
Laser fusion
Surface treatment
Online AccessGet full text

Cover

More Information
Summary:NiCoCrAlY clad coating on the GH140 alloy surface was remelted by laser. The studies show that selecting proper laser remelting parameters can refine the structure in the remelted zone, increase the density of coating, strengthen the interfacial bonding and, moreover, hardly dilute the alloying elements in the laser remelting zone. As a result, the resistance of the coating against the corrosion and thermal cycles is significantly increased. Also, the good plasticity of the original coating remains.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0257-8972
1879-3347
DOI:10.1016/0257-8972(95)02448-4