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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.

n/a --- microstructure --- Mg-Al-Ba-Ca alloy --- strength --- severe plastic deformation --- hot working --- surface roughness --- high pressure torsion extrusion --- optimization --- fatigue fracture behavior --- magnesium alloys --- de-coring --- formability --- multilayered sheets --- HPDC --- spring-back --- contact heat transfer --- mechanical properties --- bending --- in-die quenching --- equivalent strain --- light metals --- processing --- heat transfer --- damage --- creep aging --- thin-walled profile --- rolling --- aluminum alloy --- transmission line fittings --- ceramic core --- processing map --- automated void recognition --- FEA --- multi-output porthole extrusion --- density --- kinetic analysis --- texture --- non-ferrous alloys --- material characterization --- stress superposition --- hot stamping --- metal flow --- hybrid composite material --- V-bending test --- finite element model --- aluminium alloy --- shear lap test --- Al-Cu-Mg alloy --- characterization

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This book contains manuscripts related to alloys (engineering materials) to discuss potential materials, methods for improvement of the strength and cyclic properties of alloys, the stability of microstructures, the possible application of new (or improved) alloys, and the use of treatment for alloy improvement. The broad spectrum of topics included in the articles of this Special Issue demonstrates that research into the microstructural and mechanical characteristics of alloys represents a contemporary field. These topics are also envisaged to be of interest to scientists in other research centers, and we can still expect new developments in this investigation field.

magnesium alloy --- ECAP --- texture --- mechanical properties --- Co-based alloy --- tribological properties --- wear --- microstructure --- selective laser sintering (SLS) --- powder injection molding (PIM) --- medium-carbon low-alloy steel --- lath martensite --- effective grain size --- strength --- carbon content --- hot-work die steel --- thermal stability --- carbide --- dislocation --- tempering kinetics --- AZ91 magnesium alloys --- age-hardening response --- microstructure evolution --- β-Mg17Al12 phase --- artificial neural network model --- AA6063 --- fly ash --- response surface methodology --- wear rate --- friction coefficient --- Al-Cu-Li-Mg-Ag alloy --- constitutive equation --- EBSD --- recrystallization --- Cu-Mg alloy --- equal channel angular pressing (ECAP) --- metallic alloys --- chemical composition --- treatment

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Introduction and Scope—During the last few decades, an enormous effort has been made to understand corrosion phenomena and their mechanisms, and to elucidate the causes that dramatically influence the service lifetime of metal materials. The performance of metal materials in aggressive environments is critical for a sustainable society. The failure of the material in service impacts the economy, the environment, health, and society. In this regard, corrosion-based economic losses due to maintenance, repair, and the replacement of existing structures and infrastructure account for up to 4% of gross domestic product (GDP) in well developed countries. One of the biggest issues in corrosion engineering is estimating service lifetime. Corrosion prediction has become very difficult, as there is no direct correlation with service lifetime and experimental lab results, usually as a result of discrepancies between accelerated testing and real corrosion processes. It is of major interest to forecast the impact of corrosion-based losses on society and the global economy, since existing structures and infrastructure are becoming old, and crucial decisions now need to be made to replace them. On the other hand, environmental protocols seek to reduce greenhouse effects. Therefore, low emission policies, in force, establish regulations for the next generation of materials and technologies. Advanced technologies and emergent materials will enable us to get through the next century. Great advances are currently in progress for the development of corrosion-resistant metal materials for different sectors, such as energy, transport, construction, and health. This Special Issue on the corrosion and protection of metals is focused on current trends in corrosion science, engineering, and technology, ranging from fundamental to applied research, thus covering subjects related to corrosion mechanisms and modelling, protection and inhibition processes, and mitigation strategies.

high interstitial alloy --- molybdenum --- pitting corrosion --- passive film --- Cu-Mg alloy --- conform --- surface nanocrystallization --- corrosion resistance --- corrosion --- spring steel --- shot peening --- Mott–Schottky analysis --- point defect --- alloy --- magnesium --- SEM-EDS --- EIS --- mass loss --- corrosion layers --- duplex stainless steel --- intergranular corrosion --- stress corrosion cracking --- CPT --- DL-EPR --- aluminum --- heat exchanger --- galvanic corrosion --- simulation --- polarization --- electrochemical impedance spectroscopy --- high velocity oxy fuel coatings --- iron aluminide --- titanium carbide --- atmospheric corrosion --- strain measurement --- mild steel --- corrosion product --- residual stress --- AC current density --- crystallographic texture --- intergranular and transgranular cracks --- brass --- CuZn36Pb2As --- CuZn21Si3P --- dezincification --- simulated drinking water --- long immersion --- mortar --- reinforcement --- lean duplex --- stainless steel --- chloride --- alkalinity --- microstructure --- anodic polarization --- ISO 9223 --- corrosivity categories --- predictive models --- archipelagic regions --- Canary Islands --- X70 steel --- stress corrosion cracking (SCC) --- slow strain rate tests (SSRT) --- electrochemical impedance spectroscopy (EIS) --- cathodic potentials --- Atmospheric corrosion --- corrosion rates --- exposure angle --- orientation angle --- carbon steel --- double loop electrochemical potentiokinetic reactivation (DL−EPR) --- sensitization --- ultrasonic nanocrystal surface modification (UNSM) --- Inconel 718 --- n/a --- Mott-Schottky analysis

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Introduction and Scope—During the last few decades, an enormous effort has been made to understand corrosion phenomena and their mechanisms, and to elucidate the causes that dramatically influence the service lifetime of metal materials. The performance of metal materials in aggressive environments is critical for a sustainable society. The failure of the material in service impacts the economy, the environment, health, and society. In this regard, corrosion-based economic losses due to maintenance, repair, and the replacement of existing structures and infrastructure account for up to 4% of gross domestic product (GDP) in well developed countries. One of the biggest issues in corrosion engineering is estimating service lifetime. Corrosion prediction has become very difficult, as there is no direct correlation with service lifetime and experimental lab results, usually as a result of discrepancies between accelerated testing and real corrosion processes. It is of major interest to forecast the impact of corrosion-based losses on society and the global economy, since existing structures and infrastructure are becoming old, and crucial decisions now need to be made to replace them. On the other hand, environmental protocols seek to reduce greenhouse effects. Therefore, low emission policies, in force, establish regulations for the next generation of materials and technologies. Advanced technologies and emergent materials will enable us to get through the next century. Great advances are currently in progress for the development of corrosion-resistant metal materials for different sectors, such as energy, transport, construction, and health. This Special Issue on the corrosion and protection of metals is focused on current trends in corrosion science, engineering, and technology, ranging from fundamental to applied research, thus covering subjects related to corrosion mechanisms and modelling, protection and inhibition processes, and mitigation strategies.

History of engineering & technology --- high interstitial alloy --- molybdenum --- pitting corrosion --- passive film --- Cu-Mg alloy --- conform --- surface nanocrystallization --- corrosion resistance --- corrosion --- spring steel --- shot peening --- Mott–Schottky analysis --- point defect --- alloy --- magnesium --- SEM-EDS --- EIS --- mass loss --- corrosion layers --- duplex stainless steel --- intergranular corrosion --- stress corrosion cracking --- CPT --- DL-EPR --- aluminum --- heat exchanger --- galvanic corrosion --- simulation --- polarization --- electrochemical impedance spectroscopy --- high velocity oxy fuel coatings --- iron aluminide --- titanium carbide --- atmospheric corrosion --- strain measurement --- mild steel --- corrosion product --- residual stress --- AC current density --- crystallographic texture --- intergranular and transgranular cracks --- brass --- CuZn36Pb2As --- CuZn21Si3P --- dezincification --- simulated drinking water --- long immersion --- mortar --- reinforcement --- lean duplex --- stainless steel --- chloride --- alkalinity --- microstructure --- anodic polarization --- ISO 9223 --- corrosivity categories --- predictive models --- archipelagic regions --- Canary Islands --- X70 steel --- stress corrosion cracking (SCC) --- slow strain rate tests (SSRT) --- electrochemical impedance spectroscopy (EIS) --- cathodic potentials --- Atmospheric corrosion --- corrosion rates --- exposure angle --- orientation angle --- carbon steel --- double loop electrochemical potentiokinetic reactivation (DL−EPR) --- sensitization --- ultrasonic nanocrystal surface modification (UNSM) --- Inconel 718 --- n/a --- Mott-Schottky analysis