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Fatigue assessment of Ti-45Al-2Mn-2NbXD sub-element specimens / Yong Li, M. Dixon, J. Ortiz, M.R. Bache, Martin Bache

Intermetallics, Volume: 80, Pages: 33 - 39

Swansea University Author: Martin Bache

Abstract

A novel test technique is described for the sub-element fatigue assessment of dovetail geometric features commonly employed as a fixture for blade/disc assemblies in steam and gas turbines. Once developed, the test method was employed to assess the performance of a model dovetail geometry employing...

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Published in: Intermetallics
ISSN: 0966-9795
Published: 2017
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa30941
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Abstract: A novel test technique is described for the sub-element fatigue assessment of dovetail geometric features commonly employed as a fixture for blade/disc assemblies in steam and gas turbines. Once developed, the test method was employed to assess the performance of a model dovetail geometry employing the gamma titanium aluminide Ti-45Al-2Mn-2NbXD. In addition to generating information describing fatigue crack initiation, crack growth and ultimate failure, essentially via a trans-lamellar failure process, the associated wear processes were also characterised.
College: College of Engineering
Start Page: 33
End Page: 39