Auflistung Nach Schlagwort "Materials Science, Multidisciplinary"
Anzeige der Dokumente 41-60 von 79
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Investigation of rolling contact fatigue cracks in a grade 900A rail steel of a metro track
(2006)Rolling contact fatigue (RCF) has been of increasing concern in the recent years in respect of the safe operation of high-speed railway track with high traffic intensity. The present paper summarizes the results of the ... -
Kinetic modeling of a tapered Holweck pump
(2014)The Holweck pump is a device widely used in many pumping systems. It can be a self-standing device or part of a multi-stage system, usually combined with a turbo-molecular pump (TMP). In the present work, an existing ... -
Kinetics of strain-induced transformation of dispersed austenite in low-alloy TRIP steels
(2014)A model describing the kinetics of the evolution of martensite volume fraction during the strain-induced transformation of dispersed austenite in low-alloy TRIP steels has been developed. The model is based on the modification ... -
Materials handling and just-in-time in contemporary manufacturing
(1998)Materials handling processes are the focus of re-evaluation as western management looks for more efficient ways of production. Westerners have focused on the Japanese philosophies of production and how they can relate them ... -
Modelling of microstructure evolution during precipitation processes: a population balance approach of the KWN model
(2006)In the present study a general kinetic model for phase transformations resulting in a second-phase particle precipitation in a matrix is presented. Such transformations involve simultaneous nucleation, growth and coarsening ... -
The Modified Rockwell Test: A New Probe for Mechanical Properties of Metals
(2009)In the present work a novel methodology is proposed, based on the combination of the Rockwell and the Vickers tests, to provide estimates of the mechanical properties of metal substrates. The analysis is based on some novel ... -
Molecular dynamics simulation of the atomic structure of a NiO tilt grain boundary at high temperature
(2000)The detailed atomic structure of the Sigma 5(310)[001] tilt grain boundary is still the subject of controversy since the structures deduced from high-resolution electron microscopy (HREM) experiments differ from those ... -
Molecular dynamics simulation study of Ni2+ adatom diffusion on the NiO (001) surface
(2001)Using molecular dynamics simulations we studied the cation adatom diffusion on the NiO(001) surface. We found that there are two equilibrium adatom positions: one over an oxygen ion, that is raised by as much as 30% at ... -
Multiscale modeling in nanomaterials science
(2007)Nanoscience is an area with increasing interest both in the physicochemical phenomena involved and the potential applications such as silicon carbide films, carbon nanotubes, quantum dots, MEMS etc. These materials exhibit ... -
Nanocrystalline growth and diagnostics of TiC and TiB2 hard coatings by pulsed laser deposition
(1999)Nanocrystalline coatings of TiC and TiB2 were grown by pulsed laser deposition on Si(100) and on X155 steel at low substrate temperatures ranging from 40 degrees C to 650 degrees C. A pulsed KrF excimer laser was used with ... -
Nonplanar interfacial cracks in anisotropic bimaterials
(1999)This paper presents a general approach for the two-dimensional elastic problem of a crack lying along an elliptical interface seperating two dissimilar anisotropic materials. The analysis is based upon the use of the ... -
A Numerical Method for Inverse Thermal Analysis of Steady-State Energy Deposition in Plate Structures
(2012)A numerical method for inverse thermal analysis of steady-state energy deposition in plate structures is constructed according to the general physical characteristics of energy deposition within a volume of material from ... -
On the effect of austenite stability on high cycle fatigue of TRIP 700 steel
(2013)The high cycle fatigue behavior and the role of austenite stability on fatigue performance of low-alloy TRIP steel 700 have been experimentally investigated. The material was subjected to heat treatment in order to produce ... -
On the effect of hydrogen on plastic instabilities in metals
(2003)Experimental observations and theoretical calculations have demonstrated that hydrogen solute atoms increase the dislocation mobility in metals and alloys, thus promoting highly localized plastic processes which eventually ... -
On the nanocrystalline structure of TiC and TiB2 produced by laser ablation
(1997)Thin films of TiC and TiB2 have been deposited on silicon substrate by pulsed laser deposition technique, under substrate temperatures 25 - 600 degrees C. Transmission electron microscopy revealed the nanocrystalline ... -
On the thermodynamic stability of retained austenite in 4340 steel
(1997)The effect of retained austenite on the mechanical behavior of quenched and tempered steels depends on its thermodynamic stability against mechanically-induced martensitic transformation during loading. In this work, the ... -
Plane-Strain Problems for a Class of Gradient Elasticity Models-A Stress Function Approach
(2011)The plane strain problem is analyzed in detail for a class of isotropic, compressible, linearly elastic materials with a strain energy density function that depends on both the strain tensor epsilon and its spatial gradient ... -
Predicting machinability parameters on drilling Glass Fibre Reinforced Plastics using Response Surface Methodology
(2008)Glass Fibre Reinforced Plastics (GFRPs) are new composite materials rapidly introduced in the manufacturing of industrial structures. The present study investigates the impact of cutting conditions, namely feed and cutting ... -
Pressure driven rarefied gas flow through a slit and an orifice
(2012)The flow of a monatomic gas through a slit and an orifice due to an arbitrarily large pressure difference is examined on the basis of the nonlinear Bhatnagar-Gross-Krook (BGK) model equation, subject to Maxwell diffuse ... -
Pyrolytic laser-based chemical vapour deposition of TiC coatings
(1995)TiC layers have been successfully deposited locally on D2 tool steel specimens and miniature industrial tools with the aim to improve their mechanical and chemical surface properties. The deposition process was based on a ...