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Effect of Magnetic Abrasive Finishing on the Corrosion Behavior by Agricultural Pesticides Corrosive Media

Published in Journal of Bio- and Tribo-Corrosion

This study investigates the effects of surface quality obtained by Magnetic Abrasive Finishing process (MAF) on the amount of chemical corrosion created by agricultural pesticides. MAF is a relatively new method of finishing which uses a magnetic field to control the abrasive tools. In this study, samples from two types of AISI304 stainless steel a...

The tribological behavior of iron tailing sand grain contacts in dry, water and biopolymer immersed states

Published in Granular Matter

AbstractWe investigated experimentally the tribological behavior of tailing grain contacts using a micromechanical apparatus which allows high precision of force and displacement measurements to derive contact stiffness. A technique was developed to apply biopolymer coating to the grain surfaces and the emphasis of the study was placed on the inves...

Effects of grain morphology on suffusion susceptibility of cohesionless soils

Published in Granular Matter

Transporting finer fractions inside the soil skeleton or the erosion of base soils within the filter are the two main challenges for earthen hydraulic structures, their foundations, and filter design. Soil particle morphology could influence pore size distribution and transport of fine grains; however, there is not sufficient knowledge on the effec...

A Criterion for the Effective Work of Adhesion in Loading and Unloading of Adhesive Soft Solids from Rough Surfaces

Published in Tribology Letters

Recently, Dalvi and co-authors have shown detailed experimental data of adhesion of soft spheres with rough substrates with roughness measured down to almost the atomic scale, finding that the Persson and Tosatti theory gave satisfactory predictions of the apparent work of adhesion during loading, once the increase of the surface area due to roughn...

Comments on the Theory of Fluid Flow Between Solids with Anisotropic Roughness

Published in Tribology Letters

I consider fluid flow at the interface between solids with random roughness. For anisotropic roughness, obtained by stretching isotropic roughness in the x-direction by a factor of γ1/2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepack...

Monitoring from close-range remote sensing the hydraulic resistance (Manning) of agricultural channel network

International audience

Research on machining technology of high speed and ultra-thin wall parts

Published in Journal of Mechanical Science and Technology

This paper mainly analyzes and experiments the processing technology of high speed (12000 r/min) and large proportion thin-wall parts (thickness/width = 1:80 and thickness/height = 1:120), so as to guide the machining of closed centrifugal impellers in aerospace. In this process, low melting point alloy is selected as the filling material to increa...

Effects of Roughness on the Performance of a threaded Zigzag Demister Using RSM and k − ω turbulent models

Published in Sādhanā

In this paper, the effects of channel roughness on the droplet removal efficiency and pressure drop in a zigzag mist eliminator are investigated. The fluid flow, droplet dispersion and deposition through the demister are modelled using a commercial Computational Fluid Dynamics (CFD) tool. The turbulent airflow is simulated using two different Shear...