High-temperature fatigue of titanium alloys

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  • University of Siegen
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Original languageEnglish
Pages (from-to)3-14
Number of pages12
JournalMaterials at high temperatures
Volume15
Issue number1
Publication statusPublished - 1998
Externally publishedYes

Abstract

The development of high-temperature titanium alloys has been dominated by the requirements of aerospace industries. Initially, improvements in tensile strength and creep properties were the main interest. Gas inlet temperatures in aero-engines have increased continuously and, nowadays certain components in gas turbine engines that are made out of titanium alloys, such as compressor discs and rotor blades, approach operating temperatures as high as 550°C. As a result of alloy development, near-α alloys capable of operating temperatures up to 600°C are commercially available. These alloys are intended to partially replace heavier nickel-base superalloys, e.g. in the compressor of gas turbine engines and much work has been directed towards understanding high-temperature fatigue, creep-fatigue interaction and oxidation behaviour of titanium alloys. It has been recognized that alloy composition, heat treatment and microstructure all influence strongly the high-temperature properties of titanium alloys. This review focusses on the relationship between microstructure and high-temperature fatigue behaviour of titanium alloys. It will cover mainly conventional (α + β) alloys and near-α alloys which have been optimized with respect to both creep and high-temperature fatigue properties.

Keywords

    Creep-fatigue, Environmental degradation, High-temperature fatigue, Microstructure, Oxidation, Thermomechanical fatigue, Titanium alloys

ASJC Scopus subject areas

Cite this

High-temperature fatigue of titanium alloys. / Maier, H. J.
In: Materials at high temperatures, Vol. 15, No. 1, 1998, p. 3-14.

Research output: Contribution to journalArticleResearchpeer review

Maier HJ. High-temperature fatigue of titanium alloys. Materials at high temperatures. 1998;15(1):3-14. doi: 10.1080/09603409.1998.11689571
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