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Alloy Steels

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ISBN: 9783038428831 9783038428848 Year: Pages: X, 320 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Mining and Metallurgy --- General and Civil Engineering
Added to DOAB on : 2018-05-04 14:03:05
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Alloy steels play a pivotal role in modern society. Their continued development improves the human condition for everyone on earth. Their broad use has resulted in a wide variety of continuing challenges to address economic, manufacturing, and industrial issues. This book contains twenty-three papers covering a wide cross-section of alloy steels and technical problems. Readers interested in solving current manufacturing and application problems will find this issue helpful. The papers contained within cover a wide range of topics by a broad set of authors from across the globe. There are papers covering structure–property relations on various alloys. Other papers discuss the proper processing of alloy steels through the welding, electroslag remelting, and rolling processes. A significant number of the papers cover optimizing the heat treatment of traditional alloys as well as new alloys. There are papers that concentrate on providing real-world performance data on alloy steels, an important but under-studied topic. Of particular interest is a review on the welding of austenitic and duplex stainless steels that gives neophytes and experienced researchers an excellent introduction to the state-of-the-art. This collection of work should be valuable to anyone interested in alloy steels.

Keywords

Steels --- Alloy --- Welding --- Rolling --- Corrosion --- Stainless Steel --- Casting

Verfahren zur Prädiktion des Rollwiderstands bei variablen Betriebsparametern auf Basis standardisierter Rollwiderstandsmessungen

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Book Series: Karlsruher Schriftenreihe Fahrzeugsystemtechnik / Institut für Fahrzeugsystemtechnik ISSN: 18696058 ISBN: 9783731508984 Year: Volume: 71 Pages: XIV, 194 p. DOI: 10.5445/KSP/1000091012 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:00
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As a contribution to environmental protection, the EU tyre label was introduced. However, the best label value does not necessarily imply the lowest rolling resistance under real operating conditions. This research work aims to develop a model to predict the rolling losses of car tyres based on standardized rolling resistance measurements. Using this model, the rolling resistance at variable operating parameters will be predicted.

Objective Tyre Development : Definition and Analysis of Tyre Characteristics and Quantification of their Conflicts

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Book Series: Karlsruher Schriftenreihe Fahrzeugsystemtechnik / Institut für Fahrzeugsystemtechnik ISSN: 18696058 ISBN: 9783731507130 Year: Volume: 57 Pages: XV, 269 p. DOI: 10.5445/KSP/1000073428 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:00
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The present work focuses on tyres for passenger cars, especially on its influence on power loss, lateral dynamics, ride comfort and interior noise. The objective of the work is the quantification of conflicts between four selected requirements considering the physical constraints given by the tyre. The method proposed in the present book is based on a set of functional tyre characteristics, a physical tyre model and a procedure for identifying and quantifying the conflicts.

Material and Process Design for Lightweight Structures

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ISBN: 9783038979586 / 9783038979593 Year: Pages: 162 DOI: 10.3390/books978-3-03897-959-3 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Materials
Added to DOAB on : 2019-06-26 08:44:06
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The use of lightweight structures across several industries has become inevitable in today’s world given the ever-rising demand for improved fuel economy and resource efficiency. In the automotive industry, composites, reinforced plastics, and lightweight materials, such as aluminum and magnesium are being adopted by many OEMs at increasing rates to reduce vehicle mass and develop efficient new lightweight designs. Automotive weight reduction with high-strength steel is also witnessing major ongoing efforts to design novel damage-controlled forming processes for a new generation of efficient, lightweight steel components. Although great progress has been made over the past decades in understanding the thermomechanical behavior of these materials, their extensive use as lightweight solutions is still limited due to numerous challenges that play a key role in cost competitiveness. Hence, significant research efforts are still required to fully understand the anisotropic material behavior, failure mechanisms, and, most importantly, the interplay between industrial processing, microstructure development, and the resulting properties. This Special Issue reprint book features concise reports on the current status in the field. The topics discussed herein include areas of manufacturing and processing technologies of materials for lightweight applications, innovative microstructure and process design concepts, and advanced characterization techniques combined with modeling of material’s behavior.

Nanogenerators in Korea

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ISBN: 9783038976226 Year: Pages: 160 DOI: 10.3390/books978-3-03897-623-3 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-03-08 11:42:05
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Fossil fuels leaded the 21st century industrial revolution but caused some critical problems such as exhaustion of resources and global warming. Also, current power plants require too much high cost and long time for establishment and facilities to provide electricity. Thus, developing new power production systems with environmental friendliness and low-cost is critical global needs. There are some emerging energy harvesting technologies such as thermoelectric, piezoelectric, and triboelectric nanogenerators, which have great advantages on eco-friendly low-cost materials, simple fabrication, and various operating sources. Since the introduction of various energy harvesting technologies, many novel designs and applications as power suppliers and physical sensors in the world have been demonstrated based on their unique advantages. In this Special Issue, we would like to address and share basic approaches, new designs, and industrial applications related to thermoelectric, piezoelectric, and triboelectric devices which are on-going in Korea. With this Special Issue, we aim to promote fundamental understanding and to find novel ways to achieve industrial product manufacturing for energy harvesters.

Mechanism Design for Robotics

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ISBN: 9783039210589 / 9783039210596 Year: Pages: 212 DOI: 10.3390/books978-3-03921-059-6 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-06-26 08:44:06
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MEDER 2018, the IFToMM International Symposium on Mechanism Design for Robotics, was the fourth event in a series that was started in 2010 as a specific conference activity on mechanisms for robots. The aim of the MEDER Symposium is to bring researchers, industry professionals, and students together from a broad range of disciplines dealing with mechanisms for robots, in an intimate, collegial, and stimulating environment. In the 2018 MEDER event, we received significant attention regarding this initiative, as can be seen by the fact that the Proceedings contain contributions by authors from all around the world.The Proceedings of the MEDER 2018 Symposium have been published within the Springer book series on MMS, and the book contains 52 papers that have been selected after review for oral presentation. These papers cover several aspects of the wide field of robotics dealing with mechanism aspects in theory, design, numerical evaluations, and applications.This Special Issue of Robotics (https://www.mdpi.com/journal/robotics/special_issues/MDR) has been obtained as a result of a second review process and selection, but all the papers that have been accepted for MEDER 2018 are of very good quality with interesting contents that are suitable for journal publication, and the selection process has been difficult.

Keywords

hexapod walking robot --- 3-UPU parallel mechanism --- kinematics --- stability --- gait planning --- shape changing --- rolling --- robot --- cylindrical --- elliptical --- velocity control --- economic locomotion --- actuation burden --- inadvertent braking --- humanoid robots --- parallel mechanisms --- cable-driven robots --- robotic legs --- painting robot --- collaborative robot --- image processing --- non-photorealistic rendering --- artistic rendering --- robot wrists --- spherical parallel mechanism --- orientational mechanisms --- computer-aided design --- workspace analysis --- iCub --- shape memory alloy --- compliant mechanism --- SMA actuator --- pneumatic artificial muscle --- McKibben muscle --- haptic glove --- hand exoskeleton --- teleoperation --- force reflection --- human-machine interaction --- robot kinematics --- robot singularity --- singularity analysis --- robot control --- mobile manipulation --- human-robot-interaction --- learning by demonstration --- compliance control --- trajectory planning --- energy efficiency --- redundancy --- robotic cell --- kinematic redundancy --- cable-driven parallel robots --- fail-safe operation --- exercising device --- cobot --- V2SOM --- safety mechanism --- safe physical human–robot interaction --- pHRI --- variable stiffness actuator --- VSA --- collaborative robots --- humanoid robotic hands --- underactuated fingers --- graphical user interface --- grasp stability --- safe physical human–robot interaction (pHRI) --- variable stiffness actuator (VSA) --- collaborative robots --- robot-assisted Doppler sonography --- n/a

Continuous Casting

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ISBN: 9783039213214 / 9783039213221 Year: Pages: 250 DOI: 10.3390/books978-3-03921-322-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2019-08-28 11:21:27
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Continuous casting is an industrial process whereby molten metal is solidified into a semi-finished billet, bloom, or slab for subsequent rolling in finishing mills; it is the most frequently used process to cast not only steel, but also aluminium and copper alloys. Since its widespread introduction for steel in the 1950s, it has evolved to achieve improved yield, quality, productivity and cost efficiency. It allows lower-cost production of metal sections with better quality, due to the inherently lower costs of continuous, standardized production of a product, as well as providing increased control over the process through automation. Nevertheless, challenges remain and new ones appear, as ways are sought to minimize casting defects and to cast alloys that could originally only be cast via other means. This Special Issue of the journal ""Metals"" consists of 14 research articles that cover many aspects of experimental work and theoretical modelling related to the ongoing development of continuous casting processes.

Keywords

slab continuous casting --- hybrid simulation model --- uneven secondary cooling --- numerical simulation --- molten steel flow --- solidification --- inclusion motion --- inclusion entrapment --- billet continuous casting --- swirling flow tundish --- multiphase flow --- heat transfer --- mold --- continuous casting --- numerical simulation --- round bloom --- continuous casting --- final electromagnetic stirring --- electromagnetic field --- polycrystalline model --- pores --- inclusions --- mechanism --- beam blank --- crystal --- propagation --- asymptotic analysis --- numerical simulation --- continuous casting --- air mist spray cooling --- continuous casting --- heat flux --- HTC --- secondary cooling --- thin-slab cast direct-rolling --- austenite grain coarsening --- grain growth control --- liquid core reduction --- secondary cooling --- two-phase pinning --- annular argon blowing --- upper nozzle --- flow behavior --- argon gas distribution --- tundish --- continuous casting --- bulge deformation --- thermomechanical coupling --- segmented roller --- finite element analysis --- steel tundish --- baffle --- flow field --- velocity --- PIV --- multi-source information fusion --- data stream --- continuous casting --- roll gap value --- prediction --- global optimization --- support vector regression --- variational mode decomposition --- empirical mode decomposition --- support vector regression --- mold level --- continuous casting --- magnetohydrodynamics --- fluid flow --- bubbles --- inclusions --- entrapment --- entrainment --- heat transfer --- solidification --- slab mold --- continuous casting --- n/a

Risk Analysis and Portfolio Modelling

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ISBN: 9783039216246 / 9783039216253 Year: Pages: 224 DOI: 10.3390/books978-3-03921-625-3 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Business and Management
Added to DOAB on : 2019-12-09 11:49:15
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Financial Risk Measurement is a challenging task, because both the types of risk and the techniques evolve very quickly. This book collects a number of novel contributions to the measurement of financial risk, which address either non-fully explored risks or risk takers, and does so in a wide variety of empirical contexts.

Microstructure and Mechanical Properties of Structural Metals and Alloys

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ISBN: 9783038975052 / 9783038975069 Year: Pages: 272 DOI: 10.3390/books978-3-03897-506-9 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2019-06-26 08:44:06
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The papers collected in this special issue clearly reflect the modern research trends in materials science. These fields of specific attention are high-Mn TWIP steels, high-Cr heat resistant steels, aluminum alloys, ultrafine grained materials including those developed by severe plastic deformation, and high-entropy alloys. The major portion of the collected papers is focused on the mechanisms of microstructure evolution and the mechanical properties of metallic materials subjected to various thermo-mechanical, deformation or heat treatments. Another large portion of the studies is aimed on the elaboration of alloying design of advanced steels and alloys. The changes in phase content, transformation and particle precipitation and their effect on the properties are also broadly presented in this collection, including the microstructure/property changes caused by irradiation.

Keywords

Mg–Sm–Zn–Zr --- dynamic precipitation --- microstructure --- mechanical property --- bimodal ferrite steel --- ultrafine-grained microstructure --- mechanical properties --- corrosion resistance --- abnormal grain growth --- grain boundary engineering --- electron backscattered diffraction --- growth rate --- Al metal matrix composites --- microstructure --- mechanical properties --- strengthening mechanism --- hot compression --- dynamic recovery --- dynamic recrystallization --- texture --- aluminum alloys --- Al-Fe-Si-Zr system --- microstructure --- hardness --- electrical conductivity --- metal–matrix composite --- high-pressure torsion --- microstructure evolution --- microhardness --- shape memory alloy --- columnar grain --- Cu-Al-Mn --- elastocaloric effect --- strain rate --- measuring temperature --- creep --- lead-free solder --- Sb solder --- Sn-8.0Sb-3.0Ag --- solder microstructure --- martensitic steels --- creep --- precipitation --- electron microscopy --- high-Mn TWIP steel --- cold rolling --- annealing --- recovery --- recrystallization --- strengthening --- austenitic 304 stainless steels --- sub-merged arc welding --- post-weld heat treatment --- aluminum alloys --- aging --- precipitation --- electrical resistivity --- mechanical properties --- ferritic steel --- irradiation --- nanoindentation --- hardness --- transmission electron microscopy (TEM) --- microstructure --- high-entropy alloys --- high-pressure torsion --- microstructure evolution --- twinning --- mechanical properties --- welded rotor --- weld metal --- impact toughness --- PWHT --- microstructure evolution --- Cu-Cr-Zr --- precipitation --- orientation relationship --- recrystallization --- annealing twins --- structural steel plate --- nonmetallic inclusions --- rare earth control --- M23C6 --- ion irradiation --- M6C --- amorphization --- RAFM steels --- hot stamping --- press hardening --- martensitic expansion --- force peak --- cycle time --- high-Mn steel --- deformation twinning --- dynamic recrystallization --- grain refinement --- work hardening --- in situ tensile testing --- super duplex stainless steel --- SDSS --- low-temperature --- ?-phase --- SEM --- EBSD --- microstructure analysis --- n/a

Computational Methods for Fracture

Author:
ISBN: 9783039216864 / 9783039216871 Year: Pages: 404 DOI: 10.3390/books978-3-03921-687-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Computer Science
Added to DOAB on : 2019-12-09 11:49:16
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This book offers a collection of 17 scientific papers about the computational modeling of fracture. Some of the manuscripts propose new computational methods and/or how to improve existing cutting edge methods for fracture. These contributions can be classified into two categories: 1. Methods which treat the crack as strong discontinuity such as peridynamics, scaled boundary elements or specific versions of the smoothed finite element methods applied to fracture and 2. Continuous approaches to fracture based on, for instance, phase field models or continuum damage mechanics. On the other hand, the book also offers a wide range of applications where state-of-the-art techniques are employed to solve challenging engineering problems such as fractures in rock, glass, concrete. Also, larger systems such as fracture in subway stations due to fire, arch dams, or concrete decks are studied.

Keywords

plate --- FSDT --- HSDT --- Mindlin --- incompatible approximation --- fracture --- screened-Poisson model --- gradient-enhanced model --- damage-plasticity model --- implicit gradient-enhancement --- rock --- shear failure --- elastoplastic behavior --- extended scaled boundary finite element method (X-SBFEM) --- stress intensity factors --- fracture process zone (FPZ) --- thermomechanical analysis --- moderate fire --- finite element simulations --- metallic glass matrix composite --- finite element analysis --- shear band --- microstructure --- ductility --- peridynamics --- fatigue --- rolling contact --- damage --- rail squats --- cracks --- steel reinforced concrete frame --- reinforced concrete core tube --- progressive collapse analysis --- loss of key components --- self-healing --- damage-healing mechanics --- super healing --- anisotropic --- brittle material --- Brittle Fracture --- cell-based smoothed-finite element method (CS-FEM) --- Phase-field model --- ABAQUS UEL --- the Xulong arch dam --- yielding region --- cracking risk --- overall stability --- dam stress zones --- concrete creep --- prestressing stress --- compressive stress --- FE analysis --- force transfer --- grouting --- fracture network modeling --- numerical simulation --- fluid–structure interaction --- bulk damage --- brittle fracture --- rock fracture --- random fracture --- Mohr-Coulomb --- Discontinuous Galerkin --- EPB shield machine --- conditioned sandy pebble --- particle element model --- parameters calibration --- geometric phase --- photonic orbital angular momentum --- topological insulator --- topological photonic crystal --- fatigue crack growth --- surface crack --- crack shape change --- three-parameter model --- LEFM --- XFEM/GFEM --- SBFEM --- phase field --- n/a

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