We report the results of a large scale computer simulation of a binary supercooled Lennard-Jones liquid. We find that at low temperatures the curves for the mean squared displacement of a tagged particle for different temperatures fall onto a master curve when they are plotted versus rescaled time tD(T ), where D(T ) is the diffusion constant. The time range for which these curves follow the ma...

Though press and sinter powder metallurgy (PM) steel offers cost-effective solutions for structural applications, there is a constant drive improvement in their density. Addition of nanopowder to the conventional micrometre-sized metal explored improve In this study, effect addition varying amounts has been studied. Carbonyl iron (<5 ?m) water atomized (<45 were used as base which (<100 nm) was...

This paper aims to establish a breakage master curve of oblique impact using DEM bonded contact model. Despite numerous advantages particle by DEM, there exist two major issues in hindering the distinct power with fully predictive capacity. The first barrier is notable discrepancy probability evaluation, i.e. ratio experiments and damage DEM. second lack an model where subject various angles ca...

Sintering is a key step in the processing of high performance ceramics. Both density and grain size play crucial role on ceramic sintering kinetics final material properties. The master curve (MSC) well-known tool for exploring models kinetics. However, conventional MSC theory assumes unique trajectory, while our study MgAl2O4 spinel shows dissimilar growth response. Park's has been applied com...

processing. This proposition is still applied and accepted by publications of the highest level. The nonlinear regression method is being used as an alternative way of obtaining the parameters for kinetic crystallization models, such as Nakamura’s, Kamal and Chu’s, and Dietz and Malkin’s, directly from the non-isothermal crystallization data obtained by DSC. In most cases, the results obtained ...

The viscoelastic response of commercial Al–Zn–Mg and Al–Cu–Mg alloys was measured with a dynamic-mechanical analyzer (DMA) as a function of the temperature (from 30 to 425C) and the loading frequency (from 0.01 to 150Hz).The time-temperature superposition (TTS) principle has proven to be useful in studying mechanical relaxations and obtaining master curves for amorphous materials. In this work,...