Effect of Viscosity on the GTA Welds Bead Penetration in Relation with Surface Tension Elements
Journal Title: Engineering, Technology & Applied Science Research - Year 2016, Vol 6, Issue 2
Abstract
The aim of this paper is to study the effect of the viscous dissipation on the surface tension and its role on the shape of weld pool. Experiments were conducted on four different casts of ferritic stainless steel with different content in the sulfur and titanium. The results show in particular that the presence of titanium solid compounds affects the role of sulfur as surfactant element. Titanium in the presence of carbon and oxygen, titanium forms solid compounds which affect the Marangoni convection due to the sulfur element in the weld pool. The viscous dissipation due to these compounds alters the flow rate of the molten metal. We expect that the viscosity of metal liquid was altered by these solid compounds. The viscous dissipation due to these compounds contributes to heat the molten metal leading to larger weld bead.
Authors and Affiliations
K. Touileb, R. Djoudjou, A. Ouis
Keywords
Related Articles
- EP ID EP109313
- DOI -
- Views 324
- Downloads 0
A Refinement of the Square Wave Phase Noise Evaluation
Oscillators are often followed by square wave forming circuits and frequency dividers. Traditionally, the level of the phase noise, transferred from the oscillator outputs to the square waves obtained is calculated ignor...
Forecasting Parameter Estimates: A Modeling Approach Using Exponential and Linear Regression
This paper supplies a calculation method for the parameter estimates of an exponential equation through SAS algorithm. The aim of this paper is to investigate the efficiency of the gained parameter estimates through the...
Hydrogen Gas Production in a Stand-Alone Wind Farm
This paper is analyzing the operation of a stand-alone wind farm with variable speed turbines, permanent magnet synchronous generators (PMSG) and a system for converting wind energy during wind speed variations. On this...
3D-CFD Simulation of Confined Cross-Flow Injection Process Using Single Piston Pump
Injection process into a confined cross flow is quite important for many applications including chemical engineering and water desalination technology. The aim of this study is to investigate the performance of the injec...
Crude Oil Importation and Exportation in Nigeria: An Exploratory and Comparative Study
Nigeria is an oil producing country and crude oil is an important asset to its economy. This research focuses on the analysis of importation and exportation of crude oil products (measured in million barrels). Comparison...