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Article
Application of Various Nitriding Processes to Improve the Electrical Resistance of Al-Added 52100 Bearing Steel
Two ASTM A295 52100 bearing steels with different concentrations of Al (0.02 and 1.90 wt%) were nitrided by three processes: pure nitriding (gas), oxy-nitrocarburizing (gas) and salt bath nitriding. To assess ...
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Article
Prediction of Pressure-Composition-Temperature Curves of AB2-Type Hydrogen Storage Alloys by Machine Learning
Pressure-composition-temperature (PCT) curves for hydrogen absorption and desorption of AB2-type hydrogen storage alloys at arbitrary temperatures are predicted by three machine learning models such as random for...
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Article
Artificial Neural Network for Modeling the Tensile Properties of Ferrite-Pearlite Steels: Relative Importance of Alloying Elements and Microstructural Factors
An artificial neural network (ANN) model was developed to predict the tensile properties as a function of alloying element and microstructural factor of ferrite-pearlite steels. The input parameters of the mod...
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Article
A Simple Mathematical Model for Establishing Isothermal Transformation Kinetics from Continuous Cooling Data
A simple mathematical model for establishing isothermal transformation kinetics from continuous cooling transformation data is presented. A new regression function of k, which is a reaction parameter of the Johns...
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Article
Short-Term Creep Data Based Long-Term Creep Life Predictability for Grade 92 Steels and Its Microstructural Basis
Long-term creep life (5000–100,000 h) predictabilities, based on the short-term creep life data (~ 5000 h), for Grade 92 steel were investigated among major creep life prediction models, Larson–Miller paramete...
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Article
Effect of Time-Dependent Pinning Pressure on Abnormal Grain Growth: Phase Field Simulation
The effect of the time-dependent pinning pressure of precipitates on abnormal grain growth has been investigated by multiphase field simulation with a simple precipitation model. The application of constant pi...
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Article
New Equation for Prediction of Martensite Start Temperature in High Carbon Ferrous Alloys
Since previous equations fail to predict M S temperature of high carbon ferrous alloys, we first propose an equation for prediction of M S temperature of ferrous alloys containing ...
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Article
Room-temperature solid solution softening in Fe-V binary system
Molecular dynamics simulations of the glide of an edge dislocation in the bcc matrix of Fe-V alloys were performed to investigate the room-temperature solid solution softening by V atoms. For this purpose, the gl...
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Article
Atomistic simulation of hydrogen diffusion at tilt grain boundaries in vanadium
Molecular dynamics simulations of hydrogen diffusion at Σ3 and Σ5 tilt grain boundaries in bcc vanadium (V) have been performed based on modified embedded-atom method interatomic potentials. The calculated dif...
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Article
Atomistic modeling of the Al–H and Ni–H systems
Second nearest-neighbor modified embedded-atom method (MEAM) interatomic potentials for the Al–H and Ni–H binary systems have been developed on the basis of previously developed MEAM potentials of pure Al, Ni,...
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Article
Effect of Aluminum Content on the Microstructure and Mechanical Properties of Hypereutectoid Steels
Hypereutectoid steels with 0, 0.69, 1.29, and 1.95 wt pct aluminum were prepared. The samples were hot rolled at 1100 °C followed by cooling in air. The microstructure of the as-rolled samples was characterize...
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Article
Effects of crystallographic structure and Cr on the rate of void nucleation in BCC Fe: An atomistic simulation study
Atomistic Monte Carlo simulations based on modified embedded-atom method (MEAM) interatomic potentials have been carried out to clarify the differences in swelling rates between bcc and fcc Fe and between pure...
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Article
Molecular dynamics simulation of screw dislocation interaction with stacking fault tetrahedron in face-centered cubic Cu
The interaction of a gliding screw dislocation with stacking fault tetrahedron (SFT) in face-centered cubic (fcc) copper (Cu) was studied using molecular dynamics simulations. Upon intersection, the screw disl...
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Article
Catalytic effect of Ti5Si3 on thermal decomposition of Li3AlH6
Fine Ti5Si3 powder has been mechanochemically synthesized from a mixture of elemental Ti and Si powders. When Ti5Si3 is added as a catalyst into Li3AlH6, it shows a good catalytic ability by reducing the decompos...
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Article
Interfacial reaction in ASZ/A384 Al composite and its influence on mechanical properties
In an ASZ/A384 Al composite, the interfacial reaction was observed to take place between the SiO2 binder layer and Mg within the matrix to form MgAl2O4 at the interface. Formation of MgAl2O4 at the interface betw...
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Article
Modified embedded-atom method calculation for the Ni–W system
A semi-empirical interatomic potential of the Ni–W system was developed using a modified embedded-atom method (MEAM) formalism including second-nearest-neighbor interactions. The cross potential was determined...
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Article
Monte Carlo Simulation of Phase Separation Behavior in a Cu-Co Alloy Nanoparticle
The phase separation behavior in a Cu–Co nanoparticle was investigated using Monte Carlo (MC) simulation. The modified embedded atom method (MEAM) was adopted to describe the interatomic potentials for the Cu–...
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Article
Methodology to design the interfaces in SiC/Al composites
A methodology to control interfacial microstructures, while suppressing formation of Al4C3 in wrought Al alloy composites reinforced with SiC, was demonstrated. Thermodynamic calculations were carried out to eluc...
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Article
Effects of Si and Al on acicular ferrite formation in C-Mn steel
The influences of Si and Al on the microstructure of Ti-containing C-Mn steels have been studied. Although Si addition up to 1 wt pct did not change the crystal structure of dominant Ti2O3 particles dispersed in ...
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Article
A thermodynamic evaluation of the Ti-Mo-C system
A thermodynamic assessment of the Ti-Mo-C system has been made, employing a two-sublattice regular solution model for the solid solution and carbide phases and an ordinary subregular solution model for the liq...
