Hot pressing of nanograined Fe-(Fe,Mo)6C composite powders

Autor: R.K. Sadangi, Bernard H. Kear, Larry E. Mccandlish
Rok vydání: 1993
Předmět:
Zdroj: Nanostructured Materials. 2:563-569
ISSN: 0965-9773
DOI: 10.1016/0965-9773(93)90029-b
Popis: Prealloyed micron-sized powders, with two volume fractions (0.52 and 0.74) of nanograined dispersions of (Fe, Mo)6C in Fe, were produced by a spray conversion process. The average grain size of both phases in the as-synthesized powders was found to be 50 nm by X-ray line broadening. The carbide grain size of pressureless sintered material was around 0.6-1.3 μm. Hot pressing reduced the consolidation temperature by ∼300°C and the carbide grain size of the hot-pressed material to about 200–300 nm.
Databáze: OpenAIRE