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Book
Surface Treatment by Laser-Assisted Techniques
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Year: 2020 Publisher: Basel, Switzerland : MDPI - Multidisciplinary Digital Publishing Institute,

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Abstract

The book “Surface Treatment by Laser-Assisted Techniques” presents state-of-the-art research applications of lasers for surface modification. Applications in a broad spectrum of fields are presented: the aircraft and automotive sector, the manufacturing industry, sensor development, electronics, biomedical engineering, or the energy sector. Several radiation sources are included, from pulsed lasers in the visible and near-infrared regions to continuous-wave mid-infrared laser sources. The different chapters of the book “Surface Treatment by Laser-Assisted Techniques” cover laser texturing at nanoscale and microscale for modification of hydrophobicity, hydrophilicity, and ice nucleation; the production of palladium, platinum and silver nanoparticles for sensor applications; the texturization of composite bioceramics for improved fixation in bone prosthesis; the surface texturization of natural ceramic materials by scanned laser radiation; the laser ablation of interfaces to enhance adhesion in dissimilar joints; the analysis of material thermoelastic response; and the production of highly polished topographies in pulsed laser surface modification. Moreover, the production of high-entropy alloy/diamond composite coatings, the modellization of the gas-powder injection, and the generation of thermal barrier coatings by laser cladding are reported in the last chapters of this book.

Keywords

Engineering --- Technology --- Pd --- Pt --- FTO --- laser irradiations --- dewetting --- nanoparticles --- surface treatment --- CO2 laser --- scanning system --- granite stone --- dual-beam --- beam shaper --- MPFV method --- laser polishing --- zigzag-square wave --- bioceramics --- laser ablation --- roughness --- composites --- hip joint prosthesis --- cementless cup --- bone --- silver nanoparticles --- electrophoretic deposition --- pulsed laser ablation in liquid --- laser welding --- metal-polymer --- thermal contact resistance --- generalized thermoelasticity --- laser radiation --- volumetric absorption --- thermal stresses --- cooling effect --- laser cladding --- diamond composite coating --- high entropy alloy --- high scanning speed --- wear resistance --- laser-cladding --- La2Zr2O7 thermal barrier coating --- Ni-based superalloy --- high temperature oxidation --- thermal shock --- extreme high-speed laser material deposition (EHLA) --- laser material deposition (LMD) --- coaxial powder nozzle --- coating --- additive manufacturing --- numerical simulation --- hydrothermal treatment --- micro/nano-hierarchical structures --- wetting model --- anti-icing --- History. --- History. --- Pd --- Pt --- FTO --- laser irradiations --- dewetting --- nanoparticles --- surface treatment --- CO2 laser --- scanning system --- granite stone --- dual-beam --- beam shaper --- MPFV method --- laser polishing --- zigzag-square wave --- bioceramics --- laser ablation --- roughness --- composites --- hip joint prosthesis --- cementless cup --- bone --- silver nanoparticles --- electrophoretic deposition --- pulsed laser ablation in liquid --- laser welding --- metal-polymer --- thermal contact resistance --- generalized thermoelasticity --- laser radiation --- volumetric absorption --- thermal stresses --- cooling effect --- laser cladding --- diamond composite coating --- high entropy alloy --- high scanning speed --- wear resistance --- laser-cladding --- La2Zr2O7 thermal barrier coating --- Ni-based superalloy --- high temperature oxidation --- thermal shock --- extreme high-speed laser material deposition (EHLA) --- laser material deposition (LMD) --- coaxial powder nozzle --- coating --- additive manufacturing --- numerical simulation --- hydrothermal treatment --- micro/nano-hierarchical structures --- wetting model --- anti-icing


Book
Surface Treatment by Laser-Assisted Techniques
Author:
Year: 2020 Publisher: Basel, Switzerland : MDPI - Multidisciplinary Digital Publishing Institute,

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Abstract

The book “Surface Treatment by Laser-Assisted Techniques” presents state-of-the-art research applications of lasers for surface modification. Applications in a broad spectrum of fields are presented: the aircraft and automotive sector, the manufacturing industry, sensor development, electronics, biomedical engineering, or the energy sector. Several radiation sources are included, from pulsed lasers in the visible and near-infrared regions to continuous-wave mid-infrared laser sources. The different chapters of the book “Surface Treatment by Laser-Assisted Techniques” cover laser texturing at nanoscale and microscale for modification of hydrophobicity, hydrophilicity, and ice nucleation; the production of palladium, platinum and silver nanoparticles for sensor applications; the texturization of composite bioceramics for improved fixation in bone prosthesis; the surface texturization of natural ceramic materials by scanned laser radiation; the laser ablation of interfaces to enhance adhesion in dissimilar joints; the analysis of material thermoelastic response; and the production of highly polished topographies in pulsed laser surface modification. Moreover, the production of high-entropy alloy/diamond composite coatings, the modellization of the gas-powder injection, and the generation of thermal barrier coatings by laser cladding are reported in the last chapters of this book.


Book
Surface Treatment by Laser-Assisted Techniques
Author:
Year: 2020 Publisher: Basel, Switzerland : MDPI - Multidisciplinary Digital Publishing Institute,

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Abstract

The book “Surface Treatment by Laser-Assisted Techniques” presents state-of-the-art research applications of lasers for surface modification. Applications in a broad spectrum of fields are presented: the aircraft and automotive sector, the manufacturing industry, sensor development, electronics, biomedical engineering, or the energy sector. Several radiation sources are included, from pulsed lasers in the visible and near-infrared regions to continuous-wave mid-infrared laser sources. The different chapters of the book “Surface Treatment by Laser-Assisted Techniques” cover laser texturing at nanoscale and microscale for modification of hydrophobicity, hydrophilicity, and ice nucleation; the production of palladium, platinum and silver nanoparticles for sensor applications; the texturization of composite bioceramics for improved fixation in bone prosthesis; the surface texturization of natural ceramic materials by scanned laser radiation; the laser ablation of interfaces to enhance adhesion in dissimilar joints; the analysis of material thermoelastic response; and the production of highly polished topographies in pulsed laser surface modification. Moreover, the production of high-entropy alloy/diamond composite coatings, the modellization of the gas-powder injection, and the generation of thermal barrier coatings by laser cladding are reported in the last chapters of this book.


Book
Dissimilar Metal Welding
Authors: ---
ISBN: 3039219553 3039219545 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

The combination of distinct materials is a key issue in modern industry, whereas the driving concept is to design parts with the right material in the right place. In this framework, a great deal of attention is directed towards dissimilar welding and joining technologies. In the automotive sector, for instance, the concept of “tailored blanks”, introduced in the last decade, has further highlighted the necessity to weld dissimilar materials. As far as the aeronautic field is concerned, most structures are built combining very different materials and alloys, in order to match lightweight and structural performance requirements. In this framework, the application of fusion welding techniques, namely, tungsten inert gas or laser welding, is quite challenging due to the difference in physical properties, in particular the melting point, between adjoining materials. On the other hand, solid-state welding methods, such as the friction stir welding as well as linear friction welding processes, have already proved to be capable of manufacturing sound Al-Cu, Al-Ti, Al-SS, and Al-Mg joints, to cite but a few. Recently, promising results have also been obtained using hybrid methods. Considering the novelty of the topic, many relevant issues are still open, and many research groups are continuously publishing valuable results. The aim of this book is to finalize the latest contributions on this topic.

Keywords

n/a --- microstructure --- internal supports --- aging treatment --- Rare earth --- cloud of particles --- joining area --- Al/steel dissimilar materials --- welding-brazing --- dual-beam laser welding --- jet --- tensile --- aluminum-steel butt joint --- crack growth path --- spooling process tape --- lobe curve --- dissimilar metal welded joint --- electrical properties --- filler metals --- EBSD phase mapping --- dissimilar materials welding --- FSW --- mechanical properties --- dissimilar --- tubular joints --- optimal design --- hardness --- AISI 316L --- welding window --- fracture resistance --- tensile resistance --- dissimilar Ti6Al4V/AA6060 lap joint --- arc assisted laser method --- dissimilar metal welding --- dissimilar joints --- pulsed Nd:YAG laser --- solid state welding --- DP1000 steel --- cross-section adjustment --- fracture load --- pulsed Nd:YAG laser beam welding --- aluminum --- interface --- phase potential --- dissimilar weld --- failure mode --- Ag-Cu-Zn --- aluminum alloy --- copper --- intermetallic compounds --- electromagnetic pulse welding --- laser beam welding --- ageing --- dissimilar metals --- steel/aluminum joint --- side-by-side configuration --- friction stir spot welding --- interfacial crack initiation --- laser welding --- spatial beam oscillation --- magnetic pulse welding --- surface activation --- DeltaSpot welding --- tensile properties --- friction stir spot brazing --- friction stir welding --- steel/Al joint --- 1050 aluminum alloy --- local strength mismatch --- Inconel 625

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