MECHANICALLY ALLOYED NIAL-BASED COMPOSITES

Authors
Citation
Ty. Cheng et M. Mclean, MECHANICALLY ALLOYED NIAL-BASED COMPOSITES, Materials letters, 24(6), 1995, pp. 377-382
Citations number
12
Categorie Soggetti
Material Science","Physics, Applied
Journal title
ISSN journal
0167577X
Volume
24
Issue
6
Year of publication
1995
Pages
377 - 382
Database
ISI
SICI code
0167-577X(1995)24:6<377:MANC>2.0.ZU;2-8
Abstract
A NiAl-TiB2-Y2O3 composite has been prepared by hot pressing mechanica lly alloyed nickel and aluminium powders with TiB2 and Y2O3 powders. V ery fine grain (0.8 mu m) and dispersoid (45 nm) sizes have been obser ved. The compressive mechanical properties of the composite at room te mperature and at high temperature show a significantly improved streng th relative to that of monolithic NiAl. The dominant mechanism has bee n preliminary discussed.