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Transformation and Precipitation Processes in a Metal Substrate of Oxidized TiAl-Based Alloys

Authors
  • Małecka, Joanna
Type
Published Article
Journal
Oxidation of Metals
Publisher
Springer US
Publication Date
Jan 24, 2019
Volume
91
Issue
3-4
Pages
365–380
Identifiers
DOI: 10.1007/s11085-019-09886-1
Source
Springer Nature
Keywords
License
Green

Abstract

This paper presents research results on the oxidation of γ-TiAl-based alloys collected over many years. The oxidation exposures were carried out in air at 875–975 °C. Micro-areas close to the interface of the oxidation product–metallic substrate were analyzed. It was shown that the oxidation process takes place as a result of the outward diffusion of titanium ions, aluminum and alloying elements as well as the inward diffusion of oxygen and nitrogen, and the course of oxidation was also determined by the processes occurring in the metallic substrate.

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