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Dissertation
Master thesis : Microstructure prediction of Ti6Al4V processed by Laser Cladding
Authors: --- --- --- --- --- et al.
Year: 2018 Publisher: Liège Université de Liège (ULiège)

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Abstract

Abstract &#13;Titanium is the fourth most abundant structural metal in the world. It is known to have a high strength, light weight, good formability and high corrosion resistance. Due to these properties, Titanium and its alloys are used in many industries, such as aerospace and automobile. Note that due to its high price, one can find Ti6Al4V in demanding applications. &#13;This master thesis defines quantitatively predicting of the microstructure of a titanium alloy, Ti6Al4V, worked with laser cladding process. The main goal is to define the proper phase transformation conditions that lead to reliable phase predictions. &#13;Outcomes are checked from the results obtained by two experimental observations in laser cladding process for the Ti6Al4V. Both studies obtained qualitative results according to the phases that formed the microstructure of the alloy and the hardness value of three different points located in the deposits. As a first reference, H.S. Tran used Constant Track Length building strategy. The second study has been made by MMS team at University of Liège, but it has not been published yet. They used a Decrease Track Length building strategy. The initial experimental work was done by H.Paydas .&#13;This master thesis is based on the implementation of a Fortran code that defines the phase transformations of Ti6Al4V. Inside the code, the thermal conditions and the equations with their parameters are defined. The project was based on Crespo’s model that calculates the phase transformation kinetics of this titanium alloy. After applying the same model, some differences have been made in order to achieve the desired results according to the improvement works done by H.S Tran and MMS team. &#13;This document presents a flow work starting with the basic theoretical background about Additive Manufacturing, Titanium and its alloys. After, Ti6Al4V is presented: its chemical composition, the different phases that can describe its microstructure and the equations that define the transformations from one phase to the other. The parameters and conditions defining those equations are determined and compared with previous literature, concretely with Crespo. Finally the results and conclusions are presented. &#13;Keywords: Laser Cladding (LC), Ti6Al4V, microstructure, thermal history, Fortran.


Book
Design and Applications of Additive Manufacturing and 3D Printing
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Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Additive manufacturing (AM), more commonly known as 3D printing, has grown trememdously in recent years. It has shown its potential uses in the medical, automotive, aerospace, and spare part sectors. Personal manufacturing, complex and optimized parts, short series manufacturing, and local on-demand manufacturing are just some of its current benefits. The development of new materials and equipment has opened up new application possibilities, and equipment is quicker and cheaper to use when utilizing the new materials launched by vendors and material developers. AM has become more critical for the industry but also for academics. Since AM offers more design freedom than any other manufacturing process, it provides designers with the challenge of designing better and more efficient products.


Book
3D Printing of Metals
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ISBN: 3039213423 3039213415 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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3D printing is rapidly emerging as a key manufacturing technique that is capable of serving a wide spectrum of applications, ranging from engineering to biomedical sectors. Its ability to form both simple and intricate shapes through computer-controlled graphics enables it to create a niche in the manufacturing sector. Key challenges remain, and a great deal of research is required to develop 3D printing technology for all classes of materials including polymers, metals, ceramics, and composites. In view of the growing importance of 3D manufacturing worldwide, this Special Issue aims to seek original articles to further assist in the development of this promising technology from both scientific and technological perspectives. Targeted reviews, including mini-reviews, are also welcome, as they play a crucial role in educating students and young researchers.


Book
Design and Applications of Additive Manufacturing and 3D Printing
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Additive manufacturing (AM), more commonly known as 3D printing, has grown trememdously in recent years. It has shown its potential uses in the medical, automotive, aerospace, and spare part sectors. Personal manufacturing, complex and optimized parts, short series manufacturing, and local on-demand manufacturing are just some of its current benefits. The development of new materials and equipment has opened up new application possibilities, and equipment is quicker and cheaper to use when utilizing the new materials launched by vendors and material developers. AM has become more critical for the industry but also for academics. Since AM offers more design freedom than any other manufacturing process, it provides designers with the challenge of designing better and more efficient products.


Book
Design and Applications of Additive Manufacturing and 3D Printing
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Additive manufacturing (AM), more commonly known as 3D printing, has grown trememdously in recent years. It has shown its potential uses in the medical, automotive, aerospace, and spare part sectors. Personal manufacturing, complex and optimized parts, short series manufacturing, and local on-demand manufacturing are just some of its current benefits. The development of new materials and equipment has opened up new application possibilities, and equipment is quicker and cheaper to use when utilizing the new materials launched by vendors and material developers. AM has become more critical for the industry but also for academics. Since AM offers more design freedom than any other manufacturing process, it provides designers with the challenge of designing better and more efficient products.


Book
Multifunctional Oxide-Based Materials: From Synthesis to Application
Authors: ---
ISBN: 3039213989 3039213970 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute


Book
Self-Assembly of Polymers
Authors: ---
ISBN: 3039285076 3039285068 Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Nowadays, polymer self-assembly has become extremely attractive for both biological (drug delivery, tissue engineering, scaffolds) and non-biological (packaging, semiconductors) applications. In nature, a number of key biological processes are driven by polymer self-assembly, for instance protein folding. Impressive morphologies can be assembled from polymers thanks to a diverse range of interactions involved, e.g., electrostatics, hydrophobic, hots-guest interactions, etc. Both 2D and 3D tailor-made assemblies can be designed through modern powerful techniques and approaches such as the layer-by-layer and the Langmuir-Blodgett deposition, hard and soft templating. This Special Issue highlights contributions (research papers, short communications, review articles) that focus on recent developments in polymer self-assembly for both fundamental understanding the assembly phenomenon and real applications.


Book
Advances in Polymeric Materials for Biomedical Applications
Authors: ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Significant research efforts are currently being undertaken in the field of natural and synthetic polymers for a range of biomedical applications. (Co)polymer molecular structure, topology, self-assemblies, biodegradation, and hydrophobicity are of biomaterial importance for intrinsically biocompatible polymer systems. This book is comprised of nine chapters, published previously as original research contributions of the Special Issue focused on advances in polymeric materials for biomedical applications. The authors of these contributions are predominantly from central European countries, Italy and the United Kingdom. The content of this book will be of interest to scientists, scholars and students working in this area of knowledge, reflecting the progress in the development of advanced natural and synthetic polymer biomaterials.


Book
Additive Manufacturing (AM) of Metallic Alloys
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Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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The introduction of metal AM processes in such industrial sectors as the aerospace, automotive, defense, jewelry, medical and tool-making fields, has led to a significant reduction in waste material and in the lead times of the components, innovative designs with higher strength, lower weight, and fewer potential failure points from joining features. This Special Issue on “Additive Manufacturing (AM) of Metallic Alloys” contains a mixture of review articles and original contributions on some problems that limit the wider uptake and exploitation of metals in AM.

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