THIN OXIDE FILMS ON TITANIUM, ZIRCONIUM, MOLYBDENUM AND ALLOYS OF TITANIUM

Journal Article · Thu Sep 01 04:00:00 EDT 1960 · Doklady Akad. Nauk S.S.S.R.

OSTI ID:4090753

Andreeva, V V; Alekseeva, E A

The kinetics of the oxidation of Ti, Zr, Mo, a Ti alloy with 10% Mo, and a Ti alloy with 3% Al and 5% Cr at a temperature of 50 to 400 ts C were studied by determining the increase in thickness of the oxide layer by means of a method based on the polarization of reflected light. The oxidation became noticeable at 50 ts C for Zr, 100 ts C for Ti and the Ti alloy with 10% Mo, and at 150 ts C for Mo and the Ti alloy with 5% Cr and 3% Al. The rats of oxidation is expressed by the equation L = k lg (k/ sub 1/ t + k/sub 2/) where L is the thickness of the oxide layer and t is the time of oxidation. At higher temperatures the parabolic expression L/sup 2/ = k/ sub 3/t determined the rate of oxidation. The more rapid increase in thickness of the oxide film started at 200 ts C for Zr and Mo and at 350 ts C for the Ti alloy with 10% Mo, Ti itself, and the Ti alloy with 5% Cr and 3% Al. The composition of the oxide film at various temperatures is discussed. The addition of molybdenum to titanium improved the oxidation resistance of titanium. Water vapor had a protective action on the oxidation of titanium below 200 ts C. (TTT)

• Research Organization: Inst. of Physical Chemistry, the Academy of Sciences, USSR
• NSA Number: NSA-15-009371
• OSTI ID: 4090753
• Journal Information: Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 134
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALUMINUM ALLOYS
CHROMIUM ALLOYS
FILMS
LIGHT
MATHEMATICS
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM
MOLYBDENUM ALLOYS
OXIDATION
OXIDES
POLARIZATION
QUANTITATIVE ANALYSIS
TEMPERATURE
THICKNESS
TITANIUM
TITANIUM ALLOYS
VAPORS
WATER
ZIRCONIUM