Thesis-2012-Child.pdf (29.27 MB)
Corrosion-fatigue interactions of high-temperature nickel alloys
thesis
posted on 2012-04-25, 11:22 authored by Daniel ChildCorrosion and fatigue aspects of high temperature turbine components made from Alloy 720Li
and RR1000 have been studied with a view to understanding the potential failure mechanisms
occurring in these materials. Understanding of such failure mechanisms is important in order to
make safety improvements and significant cost savings by reducing engine downtime. Some exservice
discs currently exhibit pit-like features at a specific location on the firtree lobes, which
potentially may lead to more serious alloy fissuring. Shot peening is currently employed to
improve fatigue resistance at the surface of components. This work aims to fully characterise
these pits and fissure features in addition to shot peening, and the components in general, using
advanced analytical techniques, in order that the failure mechanism(s) can be determined and
mitigated against. [Continues.]
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Publisher
© Daniel ChildPublication date
2012Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.Language
- en