Browsing Theses by Subject "microstructure"
Now showing items 1-6 of 6
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Characterization and Modelling of Additively Manufactured Hastelloy X Parts under Quasi-Static and Cyclic Loading
(University of Waterloo, 2021-04-28)Laser powder-bed fusion (LPBF) is one of the main additive manufacturing (AM) methods, which has been proven to produce complex metallic parts with fine features. Understanding the correlation of process parameters to the ... -
Effect of microstructure in electrospark deposition repaired conventional and additive manufactured Ni-superalloys
(University of Waterloo, 2021-04-23)The ability to extend component lifespans and improve performance through repair and coating techniques is an important area of research with widespread industrial applications. Numerous industries, including aerospace, ... -
Investigation of Liquid-Metal-Embrittlement Crack-path: Role of Grain Boundaries and Responsible Mechanism
(University of Waterloo, 2020-07-24)Liquid metal embrittlement (LME) has been reported in many structural materials, including steel, aluminum, nickel during hot working processes e.g. welding, brazing, heattreatment, leading to abrupt failure. In many of ... -
Microstructure and texture evolution during hot deformation of AZ80 magnesium alloy
(University of Waterloo, 2019-09-26)The research investigates the hot deformation behaviour of the AZ80 alloy, with special emphasis on obtaining the flow stress data for a variety of deformation conditions (in range of 300 – 450 °C, and 0.001/s to 1/s) based ... -
Process Optimization, Numerical Modelling, and Microstructure Control in Laser Powder Bed Fusion of Ti-5553 Parts
(University of Waterloo, 2024-03-14)Additive manufacturing (AM) is an advanced production technique that creates components by depositing material layer by layer. AM has been deployed industrially for producing metallic parts from alloys which pose challenges ... -
Tool eccentricity in thick-plate aluminum alloy friction stir welds
(University of Waterloo, 2020-05-13)Tool eccentricity, i.e. the wobbling motion of a milling tool during rapid rotation caused by its slight offset from the spindle rotational axis, has been given very limited attention in the 20 years of friction stir welding ...