First Principles Design of Ductile Refractory Alloys

The First-Principles Design of Ductile Refractory Alloys

describe this work to a materials science and engineering professional with no experience in your technical specialty? This paper uses Poisson’s ratio as the screening parameter to identify potential ductilizing additives to the refractory elements such as chromium. First-principles density functional theory calculations are used to predict Poisson’s ratio of various chromium binary alloys. The...

Structural and Mechanical Characterization of Austempered Cu - Sn Ductile Iron Alloys

The effect of heat treatment and alloying elements of copper and tin on the microstructure and mechanical properties of austempered ductile cast iron alloys is investigated. The austenitizing temperature of 890°C, the isothermal transformation (austempering) temperatures of 285, 335 and 375°C, and austempering times of 15, 30, 75 and 150 minutes are studied. The alloying elements of copper and ...

Effect of Alloying Elements on the Microstructure and Mechanical Properties of Austempered Ductile Iron Alloys

Mechanical properties of Ni-based solid solution alloys: A first principles study

Present work describes the structural stability and mechanical properties of Ni-based binary and ternary alloys. These alloys have been evaluated using first principles density functional theory (DFT) within generalized gradient approximation (GGA). The equilibrium lattice constant values of the phase in these alloys are in good agreement with the experimental data obtained by X-ray diffraction...

Ab initio-predicted micro-mechanical performance of refractory high-entropy alloys

Recently developed high-entropy alloys (HEAs) consisting of multiple principal elements represent a new field of metallurgy and have demonstrated appealing properties for a wide range of applications. Using ab initio alloy theory, we reveal the alloying effect on the elastic properties and the ideal tensile strength (ITS) in the [001] direction of four body-centered cubic (bcc) refractory HEAs ...