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Ferritische ODS-Stähle - Herstellung, Umformung und Strukturanalyse

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Book Series: Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie ISSN: 21929963 ISBN: 9783731501572 Year: Volume: 32 Pages: X, 221 p. DOI: 10.5445/KSP/1000037770 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:02
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Future applications in the field of energy production demand for materials which can withstand high temperatures and neutron-doses. Oxide dispersion strengthened (ODS) steels are candidate materials for these requirements.The present work focuses on the characterization of ferritic ODS steels. The main aspect is the analysis of the crystallographic texture after different thermo-mechanical treatments by modern electron microscopy techniques.

Microstructure and Mechanical Behavior of Deep Drawing DC04 Steel at Different Length Scales

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ISBN: 9783866449671 Year: Pages: XIII, 162 p. DOI: 10.5445/KSP/1000032165 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:59
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The deformation behavior of steels is strongly influenced by their microstructure which is a result of the alloying elements and thermal treatments. In this work, the microstructure and the deformation behavior of a non-alloyed deep drawing DC04 steel was investigated. The microstructure was analyzed during heat treatment by EBSD, then microcompression experiments were performed on selected microstructural units and then bulk steel samples were mechanically tested by tensile experiments.

Process-Structure-Property Relationships in Metals

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ISBN: 9783038424574 9783038424567 Year: Pages: VI, 274 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemistry (General)
Added to DOAB on : 2017-07-21 08:43:06
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In this Special Issue of Metals, an open access forum is provided for publishing original papers that the covers direct and effective correlations between a wide range of thermomechanical processing routes and generated microstructure, hence, the final physical and mechanical properties of the materials. The following aspects of the science and engineering of various metals and alloys are covered in this book:• Original research studies that relate to the understanding of the properties obtained following specific processing/heat treatment route (Experimental, theoretical, and simulation modeling).• Understanding the mechanisms involved in microstructure evolution and phase transformation during processing of materials, specifically as they relate to the understanding of final mechanical properties.• Nano/micro/macro structure characterization and chemistry of metals/alloys used in automotive, power generation, nuclear, aerospace, and medical applications.• Micro/macro texture devolvement during thermo-mechanical processing of metals/alloys.

Crystal Chemistry of Zinc, Cadmium and Mercury

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ISBN: 9783038976523 Year: Pages: 156 DOI: 10.3390/books978-3-03897-653-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Organic Chemistry --- Chemistry (General) --- Science (General)
Added to DOAB on : 2019-04-05 10:34:31
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This book is a printed edition of the Special Issue Crystal Chemistry of Zinc, Cadmium and Mercury that was published in Crystals

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: English
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

Dissimilar Metal Welding

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ISBN: 9783039219544 9783039219551 Year: Pages: 288 DOI: 10.3390/books978-3-03921-955-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-01-07 09:08:26
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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

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

Failure Mechanisms in Alloys

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ISBN: 9783039282760 9783039282777 Year: Pages: 476 DOI: 10.3390/books978-3-03928-277-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-04-07 23:07:09
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Abstract

The era of lean production and excellence in manufacturing, advancing with sustainable development, demands the rational utilization of raw materials and energy resources, adopting cleaner and environmentally-friendly industrial processes. In view of the new industrial revolution, through digital transformation, the exploitation of smart and sophisticated materials systems, the need of minimizing scrap and increasing efficiency, reliability and lifetime and, on the other hand, the pursuit of fuel economy and limitation of carbon footprint, are necessary conditions for the imminent growth in a highly competitive economy. Failure analysis is an interdisciplinary scientific topic, reflecting the opinions and interpretations coming from a systematic evidence-gathering procedure, embracing various important sectors, imparting knowledge, and substantiating improvement practices. The deep understanding of material/component role (e.g., rotating shaft, extrusion die, gas pipeline) and properties will be of central importance for fitness for purpose in certain industrial processes and applications. Finally, it is hoped and strongly believed that the accumulation of additional knowledge in the field of failure mechanisms and the adoption of the principles, philosophy, and deep understanding of failure analysis process approach will strongly promote the learning concept, as a continuously evolving process leading to personal and social progress and prosperity.

Keywords

impingement --- erosion corrosion --- API 5L-X65 --- flow loop --- wear scar --- creep fatigue --- crack growth --- grain boundary --- hydrogen-assisted cracking --- corrosion --- SOHIC --- cleavage fracture --- cold-working process --- surface-cracking process --- impact toughness --- strength --- low temperatures --- austenitic stainless steels --- pipeline steel --- tensile stress --- corrosion --- potentiodynamic polarization --- EIS --- brass extrusion --- CFD simulation --- extrusion failures --- plastic deformation processing --- finite element analysis --- inverse modeling --- post-necking hardening --- biaxial tensile test --- elevated temperature --- reliability design --- helix upper dispenser --- fracture --- parametric accelerated life testing --- faulty designs --- metal components --- fracture mechanisms --- fractography --- fracture mechanics --- quality improvement --- finite element modeling --- nanocrystalline materials --- elastic moduli --- yield strength --- cast duplex stainless steels --- thermal aging --- tensile deformation --- spinodal decomposition --- smooth particle hydrodynamics --- Titanium alloy machining --- numerical simulation --- cutting forces --- chip formation --- fracture --- iterative FEM Method --- GISSMO Model --- softening --- macroscopic strength criterion --- isotropic metals --- fracture plane --- linear Mohr–Coulomb criterion --- failure mechanism --- W-30Cu --- microstructure homogeneity --- dynamic compression strength --- ductility --- failure mechanism --- slow-rate machining --- chip formation --- shape --- temperature --- microhardness HV --- creep --- steam reforming --- carbides --- G-phase --- aging --- cast reformer tubes --- hot stamping --- press hardening --- austenitizing furnace --- high temperature fatigue --- thermal distortion --- conveying system --- refractory steels --- furnace component failure --- ductile irons --- tensile tests --- mechanical properties --- constitutive equations --- quality assessment --- shear angle --- chip root --- shape --- built-up edge --- slow-rate machining --- convection tubes --- AISI 304 stainless steel --- failure analysis --- sensitization --- bake hardening --- dent resistance --- failure study --- polynomial regression --- yield strength --- automotive steels --- reformer tubes --- HP-Mod --- failure analysis --- creep --- surface modification techniques --- degradation of protective layers --- lubrication --- nitrocarburizing --- hardfacings --- thermal-sprayed coatings --- finite element analysis --- forward slip prediction --- strip marking method --- multilinear regression --- micro flexible rolling --- thickness transition area --- 3D Voronoi modelling --- automotive --- 6063 Alloy --- EBSD --- bendability --- fractography --- modeling --- texture --- tribological properties --- wear --- surface treatment --- self-equalizing bearing --- n/a

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