LASER REMELTING OF NICOCRALY CLAD COATING ON SUPERALLOY

Authors
ZHANG YP ZHOU ZR CHENG JM GE YL MA H
Citation
Yp. Zhang et al., LASER REMELTING OF NICOCRALY CLAD COATING ON SUPERALLOY, Surface & coatings technology, 79(1-3), 1996, pp. 131-134
Citations number
6
Categorie Soggetti
Materials Science, Coatings & Films
Journal title
Surface & coatings technology → ACNP
ISSN journal
02578972
Volume
79
Issue
1-3
Year of publication
1996
Pages
131 - 134
Database
ISI
SICI code
0257-8972(1996)79:1-3<131:LRONCC>2.0.ZU;2-7
Abstract
NiCoCrAlY clad coating on the GH140 alloy surface was remelted by lase r. The studies show that selecting proper laser remelting parameters c an refine the structure in the remelted zone, increase the density of coating, strengthen the interfacial bonding and, moreover, hardly dilu te 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 co ating remains.