Πλοήγηση ανά Θέμα "Aluminum alloys"
Αποτελέσματα 1-20 από 20
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Analytical modeling of fatigue crack propagation based on cyclic hardening and a characteristic damage length
(2020)An analytical fatigue crack growth model is developed, which combines effectively a cyclic energy dissipation approach and the strain energy density theory. The model uses cyclic material properties and relies on cyclic ... -
Corrosion damage evolution of the aircraft aluminum alloy 2024 T3
(2016)Purpose - The purpose of this paper is to quantify the corrosion damage evolution that has occurred on the aircraft aluminum alloy 2024 after the exposure to Exfoliation Corrosion Test (EXCO) solution. Moreover, the effect ... -
Corrosion-induced hydrogen embrittlement in aluminum alloy 2024
(2005)Corrosion is a major concern to the structural integrity of aging aircraft structures. The effect of corrosion on the damage tolerance ability of advanced aluminum alloys calls for consideration of the problems associated ... -
Effect of precipitate coherency on the corrosion-induced hydrogen trapping in 2024 aluminum alloy
(2021)Hydrogen trapping is one of the factors leading to hydrogen embrittlement in heat-treatable high-strength aluminum alloys. The effect of coherency of precipitates on the corrosion-induced hydrogen trapping in aluminum alloy ... -
An experimental approach for estimating the effect of heat affected zone (HAZ) microstructural gradient on fatigue crack growth rate in aluminum alloy FSW
(2017)The microstructural gradient of the heat affected zone (HAZ) in aluminum alloy FSW has been simulated experimentally by subjecting the parent alloy to a controlled aging process. The purpose of the simulation is to estimate ... -
Experimental validation of the Kalman-type filters for online and real-time state and input estimation
(2017)In this study, a novel dual implementation of the Kalman filter proposed by Eftekhar Azam et al. (2014, 2015) is experimentally validated for simultaneous estimation of the states and input of structural systems. By means ... -
Fatigue crack growth and remaining life assessment of 2024 aluminum with variation in microstructure
(2010)The LTSM-F crack growth model is implemented in the present work for the assessment of crack growth and remaining fatigue life of 2024 aluminium alloy with different microstructure. The effect of microstructure in the crack ... -
Fatigue crack growth prediction in 2xxx AA with friction stir weld HAZ properties
(2016)An analytical model is developed to predict fatigue crack propagation rate under mode I loading in 2024 aluminum alloy with FSW HAZ material characteristics. Simulation of the HAZ local properties in parent 2024 AA was ... -
Fatigue of materials - Influence of microstructure and processing effect of overaging on fatigue crack propagation of 2024 T3 aluminum alloy
(2013)The effect of controlled overaging on fatigue crack propagation (Stage II) in 2024-T3 aluminum alloy was experimentally investigated. Overaging was performed by subjecting the material from initial T3 state to appropriate ... -
Fatigue performance of pre-corroded 6xxx aluminum alloy laser beam welds with dissimilar heat treatment
(2014)The role of existing corrosion damage on the fatigue performance of 6156 AA laser beam welds in T3 state, with additional post weld heat treatment T8, has been assessed. The welds were subjected to salt fog environment for ... -
Guidance Provision for Increasing Quality of Service of Public Transport
(2017)Travellers formulate their optimal strategyto follow for their trip, every time they may shift to another mode. Trip generalized cost is perceived based on quality of service aspects and type of traveller. One of the most ... -
Investigation on the protective role of local AL cladding against corrosion damage and hydrogen embrittlement of 2024 aluminum alloy specimens
(2004)The present investigation aims to inquire whether Al cladding of 2024 aluminum alloy specimens could provide, additionally to the expected protection against corrosion damage, also a protection against the corrosion induced ... -
Mechanical performance of laser spot-welded joints in Al-Al/Cu solar thermal absorbers
(2018)The mechanical performance of laser spot welded joints used in Al-Cu and Al-Al thermal absorber systems has been evaluated under different laser welding and mechanical loading conditions. In the experimental investigation, ... -
Modeling of microsegregation and homogenization of 6xxx Al-alloys including precipitation and strengthening during homogenization cooling
(2019)Control of the homogenization process is important in obtaining high extrudability and desirable properties in 6xxx aluminum alloys. Three consecutive steps of the process chain were modeled. Microsegregation arising from ... -
Parameter optimization during finish end milling of Al alloy 5083 using robust design
(2011)The influence of cutter geometry and cutting parameters during end milling on the surface texture of aluminium (Al) alloy 5083 was experimentally investigated. Eighteen pockets were manufactured having different combination ... -
Phase fraction mapping in the as-cast microstructure of extrudable 6xxx aluminum alloys
(2014)The mapping of Mg2Si and beta-AlFeSi phase fractions in the as-cast microstructure of Al-Mg-Si-Fe-Mn (6xxx series) alloys has been performed over the useful composition range (0-1.2 mass%) of the principal alloying elements ... -
Prediction of crack growth following a single overload in aluminum alloy with sheet and plate microstructure
(2011)The fatigue crack growth behavior under constant amplitude and under single overload of 2024 aluminum alloy in sheet and plate product form has been investigated. Constant amplitude fatigue crack growth tests showed superior ... -
Simulation of dissolution and coarsening in the HAZ of 6061 Al- alloy during laser welding
(2005)Application of laser beam welding (LBW) in heat treatable aluminum alloys causes softening of the heat affected zone (HAZ). This loss in hardness, reflects the relevant microstructural changes due to dissolution and ... -
Simulation of the transformation of iron intermetallics during homogenization of 6xxx series extrudable aluminum alloys
(2012)A computational simulation of the beta-AlFeSi to alpha-AlFeSi transformation has been performed in this work by integrating the process steps of solidification and homogenization. The composition profiles of alloying ... -
Thermal and microstructural characterization of a novel ductile cast iron modified by aluminum addition
(2020)In high-temperature applications, like exhaust manifolds, cast irons with a ferritic matrix are mostly used. However, the increasing demand for higher-temperature applications has led manufacturers to use additional expensive ...