| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1623019 | Journal of Alloys and Compounds | 2009 | 4 Pages |
Abstract
A process of laser cladding Ni–Cr–C–CaF2 mixed powders to form a multifunctional composite coating on γ-TiAl substrate was carried out. The microstructure of the coating was examined using XRD, SEM and EDS. The coating has a unique microstructure consisting of primary dendrite or short-stick TiC and block Al4C3 carbides reinforcement as well as fine isolated spherical CaF2 solid lubrication particles uniformly dispersed in the NiCrAlTi (γ) matrix. The average microhardness of the composite coatings is approximately HV 650 and it is 2-factor greater than that of the TiAl substrate.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Wen-Gang Liu, Xiu-Bo Liu, Zhen-Guo Zhang, Jian Guo,