Browsing by Subject "Microstructure"
Now showing items 1-9 of 9
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A comprehensive analysis of extrusion behavior, microstructural evolution, and mechanical properties of 6063 Al–B4C composites produced by semisolid stir casting
(2018)In this study, composites of aluminum alloy 6063 reinforced with 10 wt.% boron carbide microparticles were successfully fabricated by a combination of spark plasma sintering and stir casting methods, followed by hot ... -
Development of Stimuli-responsive Materials for Direct Laser Writing for the Realisation of Microactuators
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2024)Two-photon polymerisation (2PP) is a laser-based fabrication technology which can be used to fabricate complex 3D microstructures with feature sizes ~100 nm. This thesis assesses the state of the art in 2PP and presents ... -
Improvement of tensile strength of cold sprayed Fe deposits via in-process powder preheating
(2022)Cold sprayed Fe deposits were manufactured with non-preheated and preheated powders, respectively. The microstructure of the deposits was characterized by electron backscattered diffraction. The tensile property of the ... -
Microstructure and Micro Hardness of Friction Stir Welded AA2024-T3 Joints
(2014)Macrostructure, microstructure and micro hardness of friction stir welded AA2024 - T3 joints was studied. The influence of tool pin profile on the microstructure and hardness of these joints was examined. Square, ... -
Microstructure and tribological properties of Al2O3 reinforced FeCoNiCrMn high entropy alloy composite coatings by cold spray
(2022)High entropy alloys (HEAs) are novel materials that have been extensively studied in recent years. In this work, Al2O3 particles reinforced FeCoNiCrMn HEA composite coatings were fabricated by cold spray. The microstructure, ... -
Performance characterization of Ni60-WC coating on steel processed with supersonic laser deposition
(2015)Ni60-WC particles are used to improve the wear resistance of hard-facing steel due to their high hardness. An emerging technology that combines laser with cold spraying to deposit the hard-facing coatings is known as ... -
Solid-state Deposition of Bulk Metallic Glass and High-entropy Alloy via Cold Spray
(Trinity College Dublin. School of Engineering. Discipline of Mechanical & Manuf. Eng, 2024)Metallic glasses (MGs) and high-entropy alloys (HEAs) are both emerging multi-component alloys with unique microstructures and extraordinary properties. Cold spray, as a burgeoning solid-state material deposition process, ... -
Strengthening mechanism of additively manufactured cold spray Al deposits under low deposition efficiency
(2021)In this study, a novel strategy to manufacture high strength cold-sprayed Al coating by using powder with wide size distribution is proposed. The microstructure and mechanical properties of deposited ... -
Two-Photon Polymerization of Sugar Responsive 4D Microstructures
(2023)Stimuli-responsive hydrogels have attracted much attention owing to the versatility of their programmed response in offering intelligent solutions for biomimicry applications, such as soft robotics, tissue engineering, and ...