Understanding the evolution of superalloy microstructure during inertia friction welding using in-situ x-ray diffraction and cellular automata

Rowson, Matthew (2021) Understanding the evolution of superalloy microstructure during inertia friction welding using in-situ x-ray diffraction and cellular automata. PhD thesis, University of Nottingham.

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Abstract

The present work describes the development of a novel in-situ synchrotron diffraction technique for the characterisation of the microstructure evolution which occurs during IFW. These studies have quantified, for the first time, the spatial and temporal evolution of phase fractions which is produced by this process.

The technique has been applied for a steel and a nickel-based superalloy, assessing the evolution of microstructure which occurs for these materials. Furthermore, relationships between micro-scale evolution and macro-scale behaviour have been investigated to assess whether the microstuctural changes which occur control the mechanical evolution of the process.

A novel Cellular Automata approach has been developed to analyse whether thermally-driven phase transformations represent the experimental results produced.

Item Type: Thesis (University of Nottingham only) (PhD)
Supervisors: Bennett, Chris
Rouse, James
Keywords: Inertia Friction Welding; X-ray Diffraction; Microstructure Evolution; Cellular Automata
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TS Manufactures
Faculties/Schools: UK Campuses > Faculty of Engineering
Item ID: 66714
Depositing User: Rowson, Matthew
Date Deposited: 28 Jan 2022 11:01
Last Modified: 28 Jan 2022 11:01
URI: http://eprints.nottingham.ac.uk/id/eprint/66714

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