Moderate and low temperature oxidation of clean nickel, chromium, and Ni-Cr alloys: Progress report, August 1, 1986-July 31, 1987

Technical Report · Wed Apr 01 04:00:00 EST 1987

OSTI ID:6511914

Holloway, P H; Batich, C D

Metals are inherently thermodynamically unstable and will react with atmospheric gases or water to produce oxide, hydrated oxides, etc. Normally this product will degrade the mechanical, physical, etc., properties of the metallic part. Fortunately the oxides produced by the reactions usually reduce the rate of subsequent reaction making it feasible to build structures with metals. It has been found for stainless steels and nichrome alloys that the addition of chromium (Cr) significantly improves the ability of the oxides to passivate (reduce the reaction rate of) the metallic surface. However because Cr is a strategic material whose supply is controlled by countries other than the US, it is important to develop a scientific basis for substituting other elements for Cr in metallic alloys. This paper reports on the fundamental study of the development of passivating oxide films on Ni-Cr alloys.

• Research Organization: Florida Univ., Gainesville (USA)
• DOE Contract Number: FG05-84ER45155
• OSTI ID: 6511914
• Report Number(s): DOE/ER/45155-3; ON: DE87011089
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CHEMICAL REACTIONS
CHROMIUM
CHROMIUM ALLOYS
ELEMENTS
METALS
NICKEL
NICKEL ALLOYS
OXIDATION
RESEARCH PROGRAMS
TRANSITION ELEMENTS