MICROSTRUCTURE OF LASER REMELTED NI-BASE ALLOY COATING ON STAINLESS-STEEL

Authors
GAO Y LIANG Y SHI CX
Citation
Y. Gao et al., MICROSTRUCTURE OF LASER REMELTED NI-BASE ALLOY COATING ON STAINLESS-STEEL, JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 14(1), 1998, pp. 49-52
Citations number
7
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY → ACNP
ISSN journal
10050302
Volume
14
Issue
1
Year of publication
1998
Pages
49 - 52
Database
ISI
SICI code
1005-0302(1998)14:1<49:MOLRNA>2.0.ZU;2-3
Abstract
A 5 kW CW CO2 gas laser was used to produce NiCrBSi superalloy coating s. Powders were preplaced by plasma-spraying. The microstructure and c hemical composition of the coating have been studied by SEM, XRD and H REM. The results show the coating microstructure is fine dendrites, co mposed of gamma matrix, gamma' and boride (NiB) eutectic, the lattice parameter of the gamma matrix is 0.3572 nm and there is a metallurgica l bonding in interface.