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The use of microstructural evolution in a coated nickel base superalloy, IN738, as a time–temperature recorder

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posted on 17.09.2018 by Mohamed R. Shaheedullah
Nickel base superalloys are used for turbine blades in gas turbine engines, and are required to operate at very high temperatures (≈900°C) for long periods of time in an aggressive environment. A particular problem is that although the operating times of such blades are generally well-known, their effective operating temperatures are less well defined due to variations in position and metal-gas temperature. The microstructure of this material is known to evolve as a function of time and temperature. The aim of this research is to develop a model that will enable the microstructure to act as a time temperature recorder for IN738LC industrial gas turbine blades. [Continues.]

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Publisher

© M.R. Shaheedullah

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2000

Notes

A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.

Language

en

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