Thesis-2000-Shaheedullah.pdf (27.79 MB)
Download fileThe use of microstructural evolution in a coated nickel base superalloy, IN738, as a time–temperature recorder
thesis
posted on 2018-09-17, 13:28 authored by Mohamed R. ShaheedullahNickel 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.]
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School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials