BEHAVIOR OF VARIABLE POROSITY CHROMIUM DURING AIR OXIDATION

Authors
SEVERYANINA EN PORYADCHENKO NE PANARINA NI RAKITSKII AN ONOPRIENKO AA
Citation
En. Severyanina et al., BEHAVIOR OF VARIABLE POROSITY CHROMIUM DURING AIR OXIDATION, Powder metallurgy and metal ceramics, 32(9-10), 1993, pp. 844-846
Citations number
13
Categorie Soggetti
Material Science, Ceramics","Metallurgy & Mining
Journal title
Powder metallurgy and metal ceramics → ACNP
ISSN journal
10681302
Volume
32
Issue
9-10
Year of publication
1993
Pages
844 - 846
Database
ISI
SICI code
1068-1302(1993)32:9-10<844:BOVPCD>2.0.ZU;2-9
Abstract
The oxidation kinetics, structure and phase composition have been exam ined for an oxide film formed on the surface of powder and cast chromi um specimens during air oxidation at 1160-degrees-C using thermogravim etric, x-ray phase analysis and scanning microscopy. The oxidation rat e was studied as a function of the porosity and structural condition. It has been shown that sintered and extruded powder specimens exhibit better heat resistance relative to cast chromium.