Oxidation behavior of binary Ti-xW (0 ≤ x ≤ 30, wt%) alloys at 650 °C as a function of W concentration. (October 2016)

• Record Type: Journal Article
• Authors: Samimi, P.; Collins, P.C.
• Is Part Of: Corrosion science. Volume 111(2016)
• Page Start: 531
• Page End: 540
• Publication Date: 2016-10
• Subjects: A. Titanium -- C. Oxidation -- B. TEM; Corrosion and anti-corrosives -- Periodicals; 620.11223
• DOI: 10.1016/j.corsci.2016.05.038
• Languages: English
• ISSNs: 0010-938X

Abstract

Highlights: A combinatorial approach was employed to study the oxidation of Ti–W system. Microstructural evolution of the base metal in Ti-W system are comparable to those of the Ti-Mo system. The scale thickness decreases with increase in W content and internal oxidation takes place for very high W concentrations. Abstract: The role of composition on the oxidation behavior of the Ti-W system at 650 °C was investigated utilizing a compositionally graded specimen, Ti-xW (0 ≤ x ≤ 30, all compositions in wt%). Microstructural evolution of the base material and thickness of the oxide layers were assessed as a function of composition. Some of the observations with regard to the evolved base metal microstructure, including: α lath and β rib/precipitates and lamellar structure, were found to be comparable to what is reported for Ti-Mo system. It was also shown that formation of a thinner oxide does not necessarily imply on the lower oxygen ingress.