Alok Singh
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View article: Effect of heat generation and activation energy on MHD maxwell fluid with multiple slips
Effect of heat generation and activation energy on MHD maxwell fluid with multiple slips Open
This research delves into Maxwell fluid flow's intricate fluid dynamics, as well as heat-mass transfer features over a porous horizontal plate. The investigation encompasses magnetohydrodynamics, heat generation, radiation, chemical reacti…
View article: Heat transfer due to electromagnetic radiation of MHD Powell-Eyring fluid with mass diffusion via Lie symmetry scaling
Heat transfer due to electromagnetic radiation of MHD Powell-Eyring fluid with mass diffusion via Lie symmetry scaling Open
The objective of this research is to explore the mass and heat transmission characteristics of magnetohydrodynamic Powell-Eyring fluid through an absorptive flat surface, as the effects of mass diffusion and radiation. The validation proce…
View article: Double diffusive on powell eyring fluid flow by mixed convection from an exponential stretching surface with variable viscosity/thermal conductivity
Double diffusive on powell eyring fluid flow by mixed convection from an exponential stretching surface with variable viscosity/thermal conductivity Open
This study delves into heat and mass transference in fluids with variable thermo-physical features, focusing on the Powell-Eyring fluid, a non-Newtonian substance with unique characteristics. Our aim is to understand the behaviour of this …
View article: Significance of heat generation in MHD channel flow of a maxwell fluid with heat suction and blowing effects
Significance of heat generation in MHD channel flow of a maxwell fluid with heat suction and blowing effects Open
This investigation aims to provide numerical analyses for a complex problem involving magnetohydrodynamics (MHD), radiation and heat generation of a Maxwell fluid within a porous medium on the channel. The governing equations for momentum,…
View article: Melting heat effect in MHD flow of maxwell fluid with zero mass flux
Melting heat effect in MHD flow of maxwell fluid with zero mass flux Open
This study delves into the investigation of Maxwell fluid flow across a sheet with a particular effort on the melting heat and zero mass flux at the boundary. A Maxwell fluid, characterized by both viscous and elastic responses, plays a pi…
View article: Deep Learning Enables Rapid Identification of a New Quasicrystal from Multiphase Powder Diffraction Patterns
Deep Learning Enables Rapid Identification of a New Quasicrystal from Multiphase Powder Diffraction Patterns Open
Since the discovery of the quasicrystal, approximately 100 stable quasicrystals are identified. To date, the existence of quasicrystals is verified using transmission electron microscopy; however, this technique requires significantly more…
View article: Quasicrystals predicted and discovered by machine learning
Quasicrystals predicted and discovered by machine learning Open
Quasicrystals represent a class of ordered materials that have diffraction symmetry forbidden in periodic crystals. Since the first discovery of quasicrystals in 1984, approximately 100 thermodynamically stable quasicrystals have been synt…
View article: Non-Basal Dislocation Nucleation Site of Solid Solution Magnesium Alloy
Non-Basal Dislocation Nucleation Site of Solid Solution Magnesium Alloy Open
The effect of grain boundary segregation on plastic deformation was investigated using the Mg–Y solid solution binary alloy. Deformed microstructural observations revealed many traces of prismatic 〈a〉 dislocations as well as basal dislocat…
View article: Development of Al1070-Quasicrystal (Al<sub>65</sub>Cu<sub>23</sub>Fe<sub>12</sub>) composites using friction stir processing and its mechanical characterization
Development of Al1070-Quasicrystal (Al<sub>65</sub>Cu<sub>23</sub>Fe<sub>12</sub>) composites using friction stir processing and its mechanical characterization Open
This study aims at analysing the microstructure and mechanical behaviour of quasicrystalline (Al 65 Cu 23 Fe 12 ) strengthened Al1070 composites by Friction Stir Processing (FSP). The composites with various volume fractions of quasicrysta…
View article: Effect of Solidification Cooling Rate on Microstructure and Mechanical Properties of an Extruded Mg-Zn-Y Alloy
Effect of Solidification Cooling Rate on Microstructure and Mechanical Properties of an Extruded Mg-Zn-Y Alloy Open
The Effect of the solidification conditions and subsequent extrusion of a Mg-3.0Zn-0.5Y (at. %) alloy containing quasicrystalline icosahedral (i-) phase was studied. Solidification was carried out by three methods using a chill casting mol…
View article: Lattice Correspondence and Growth Structures of Monoclinic Mg4Zn7 Phase Growing on an Icosahedral Quasicrystal
Lattice Correspondence and Growth Structures of Monoclinic Mg4Zn7 Phase Growing on an Icosahedral Quasicrystal Open
Mg 4 Zn 7 phase, with a monoclinic unit cell, a layered structure and a unique axis showing pseudo-tenfold symmetry, grows over icosahedral quasicrystalline phase in a manner similar to a decagonal quasicrystal. In this study, the relation…
View article: Excellent room temperature deformability in high strain rate regimes of magnesium alloy
Excellent room temperature deformability in high strain rate regimes of magnesium alloy Open
Magnesium and its alloys have the lowest density among structural metallic materials; thus, this light-weight metal has great potential for reducing the weight, for example, of vehicles and trains. However, due to its crystal structure, de…
View article: A Simple Method for Observing <i>ω</i>-Fe Electron Diffraction Spots from <112><sub><i>α</i>-Fe</sub> Directions of Quenched Fe–C Twinned Martensite
A Simple Method for Observing <i>ω</i>-Fe Electron Diffraction Spots from <sub><i>α</i>-Fe</sub> Directions of Quenched Fe–C Twinned Martensite Open
In twinned martensite, a metastable hexagonal ω-Fe phase always exists in the twin boundary region of the body-centered cubic (bcc) {112}-type twin. The ω-Fe electron diffraction spots at the 1/3{112}α-Fe and 2/3{112}α-Fe positions have be…
View article: Development of Isotropic and Accordion-Like Deformable Magnesium Alloys
Development of Isotropic and Accordion-Like Deformable Magnesium Alloys Open
The possibility for reduction in tension-compression asymmetric behavior and the effect of alloying elements on room temperature compressive behavior were investigated using extruded pure magnesium, several Mg-0.3 at.%X (X = Al, Li, Mn, Y …
View article: Microstructure study of a severely plastically deformed Mg-Zn-Y alloy by application of low angle annular dark field diffraction contrast imaging
Microstructure study of a severely plastically deformed Mg-Zn-Y alloy by application of low angle annular dark field diffraction contrast imaging Open
Microstructural investigation of extremely strained samples, such as severely plastically deformed (SPD) materials, by using conventional transmission electron microscopy techniques is very challenging due to strong image contrast resultin…
View article: Control of Grain Structure in AZ31 Mg Alloy by Multipass Caliber rolling
Control of Grain Structure in AZ31 Mg Alloy by Multipass Caliber rolling Open
Energy saving is desired in development of transportation vehicles by adapting lightweight materials like fuel efficiency with magnesium alloys. However, magnesium has insufficient mechanical properties. Therefore grain refinement was cond…
View article: The influence of severe plastic deformation on microstructure of CoCrFeMnNi High-Entropy Alloy.
The influence of severe plastic deformation on microstructure of CoCrFeMnNi High-Entropy Alloy. Open
Novel solid solution alloys, called High-entropy alloys (HEAs), are introduced as new material with promising mechanical properties. Many researchers have reported about the increasing strength of HEA by the modification of the chemical co…
View article: Effect of Micro-Alloying Elements on Deformation Behavior in Mg-Y Binary Alloys
Effect of Micro-Alloying Elements on Deformation Behavior in Mg-Y Binary Alloys Open
The effect of minor yttrium atom addition on deformation behavior was investigated using Mg-X at%Y (X=0.01, 0.02, 0.03, 0.04 and 0.05) dilute alloys and pure magnesium with an average grain size of about 50 μm. The stress and strain curves…