NDLI: Oxidation kinetics and mechanisms of Ti-Ta alloys

Content Provider	Springer Nature Link
Author	Hanrahan, Robert J. Butt, Darryl P.
Copyright Year	1997
Abstract	The oxidation kinetics of alloys containing nominally 5, 40, and 60 weight percent Ta, as well as pure Ti and Ta, were measured for 16 hr in argon-20% oxygen or pure oxygen at 800, 1000, 1200 and 1400°C. These three alloys were chosen as representative of low, intermediate and high-Ta content for comparison to previous studies. In addition to TGA, specimens were examined using scanning electron microscopy, electron microprobe, and X-ray diffraction. The effect of Ta on the oxidation of Ti is explained by an increase in the compositional range of the oxygen-stabilized α-phase while apparently reducing the solubility of oxygen and the diffusivity of Ti in both the α- and β-phases. The composition which exhibits the minimum oxidation rate varies depending on the temperature and atmosphere, but is governed by the solubility of Ta in oxygen-stabilized α-Ti.
Starting Page	317
Ending Page	353
Page Count	37
File Format	PDF
ISSN	0030770X
Journal	Oxidation of Metals
Volume Number	47
Issue Number	3-4
e-ISSN	15734889
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	1997-01-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	titanium tantalum titanium alloy oxidation mechanism oxidation kinetics Inorganic Chemistry Tribology, Corrosion and Coatings Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Metals and Alloys Inorganic Chemistry

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