The microstructure and its properties of Ni3Al based composite

Authors
Ye, WJ Feng, D Luo, HL
Citation
Wj. Ye et al., The microstructure and its properties of Ni3Al based composite, MAT RES INN, 2(6), 1999, pp. 321-324
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS RESEARCH INNOVATIONS
ISSN journal
14328917 → ACNP
Volume
2
Issue
6
Year of publication
1999
Pages
321 - 324
Database
ISI
SICI code
1432-8917(199904)2:6<321:TMAIPO>2.0.ZU;2-#
Abstract
Composites of B-doped ductile Ni3Al alloy matrix with no-oxide WC ceramic p owders were produced by mechanical alloying, half-sintering and buildup wel ding. WC powders form non-continuous hardening phases, which are distribute d in Ni3Al matrix, wetting well with the matrix. The hardness and the struc ture stability are retained to temperatures of at least 850 degrees C. Afte r build-up welding, most of the NiAl phase left after sintering was changed into other phases and some graphite was precipitated in the matrix. The sa nd-laden water wear test showed expected results.