Browsing University of Galway Theses (PhD Theses) by Author "Harrison, Noel M."
Now showing items 1-7 of 7
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Computational methods for micromechanics characterisation: Application to and experimental investigation of metal additive manufacturing and heat treatment processes
Tu, Yuhui (NUI Galway, 2022-11-23)Powder bed fusion (PBF) is an additive manufacturing process in which finely focused thermal energy is used to selectively melt target regions within thin layers of metal powders. Due to the complex thermal conditions ... -
Computational modelling of linear friction welding of Inconel 718
Okeke, Saviour Ifeanyichukwu (NUI Galway, 2022-07-15)Linear friction welding (LFW) is a solid-state joining technique that involves the rapid reciprocating motion of two workpieces under large compressive pressure, in order to generate friction heat and plastically deformed ... -
An experimental and computational investigation of the high temperature behaviour of MarBN steel with application to effects of manufacturing
O'Hara, Eimear Marie (NUI Galway, 2018-10-30)The key step for next generation power plants is the development of advanced materials capable of achieving high flexibility and efficiency at increased steam temperatures and pressures. Such operating conditions will cause ... -
Microstructural functionally graded Ti-6Al-4V via advanced laser-based technologies
Geng, Yaoyi (NUI Galway, 2021-11-10)Functionally graded material (FGM) is characterised by an intended spatial variation in material attributes within a single part. This thesis is focused on advanced laser-based manufacturing technologies of microstructural ... -
A physically-based process-structure-property model for additively manufactured materials
Yang, Xinyu (NUI Galway, 2022-04-27)Successful application of additive manufacturing (AM) across a broad range of industries requires stable and predictable performance of AM materials. However, the microstructure and properties of AM parts vary widely based ... -
Process modelling and experimental validation of residual stress in metal additive manufacturing
Zhang, Wenyou (NUI Galway, 2021-09-06)Additive Manufacturing (AM) is an increasingly attractive advanced manufacturing technology that manufactures three-dimensional (3D) components, usually in a layer-by-layer manner, as opposed to subtractive or formative ... -
Through-process characterisation for welding, microstructure evolution and constitutive response of 9Cr steel material for flexible power plant operation
Mac Ardghail, Padraig (NUI Galway, 2020-05-06)This thesis presents a combined experimental and computational characterisation programme of work for development of a through-process modelling methodology for the welding, post-weld heat treatment and in-service performance ...