PASSIVATION OF STAINLESS-STEELS IN HIGHLY OXYGENATED LIQUID-SODIUM

Authors
ISAKOV VP ANTONOV AA SHCHETNIKOVA ST
Citation
Vp. Isakov et al., PASSIVATION OF STAINLESS-STEELS IN HIGHLY OXYGENATED LIQUID-SODIUM, Protection of metals, 29(2), 1993, pp. 191-195
Citations number
7
Categorie Soggetti
Metallurgy & Mining
Journal title
Protection of metals → ACNP
ISSN journal
00331732
Volume
29
Issue
2
Year of publication
1993
Pages
191 - 195
Database
ISI
SICI code
0033-1732(1993)29:2<191:POSIHO>2.0.ZU;2-5
Abstract
We studied mass transfer and physicochemical conversions at 750-degree s-C in chromium stainless steels containing various carbide-forming el ements. The tests were conducted in liquid sodium with high contents o f oxygen and nitrogen (10(-3)-10(-2) wt.%). Raising the oxygen content accelerated breakdown of titanium carbide inclusions and transported titanium through the liquid metal to form a highly protective TiN film on the otherwise titanium-free steel. No sodium or carbon penetrated the steel.