Aluminizing of Steel by Gas Atomization Process

The Intelligent Control of an Inert-Gas Atomization Process

Intelligent control isan attempt tospecify the function of a controller in ways which mimic the decision-making capabilities of humans. Traditionally, issues relating to the emulation of human-like capabilities have fallen in thedomain of avtificial intelligence. Intelligent processing is a specific form of intelligent control in which thesystem to be controlled is a process rafher than the mor...

MODELING OF RAPID SOLIDIFICATION PROCESS IN THE GAS ATOMIZATION OF MOLTEN METALS

In the present work, a model was proposed to predict the thermal history during rapid solidification (RS) of metal droplets in the gas atomization process. The classical theory of heterogeneous nucleation was based on Newtonian heat flow and enthalpy method. Solving the governing numerical equations by the finite difference method (FDM) gave up the opportunity of analyzing the temperature-time ...

Neural Network Modeling of Oxidation Kinetics in Air of Steel- T21 Alloy Coated by Simultaneous Germanium-Doped Aluminizing-Siliconzing Process

In this work a pack cementation of germanium-doped aluminum and silicon coatings on low alloy steel type-T21 has been applied. This gives significant improvement in the oxidation. Steel-T21 was coated with germanium-doped aluminizing-siliconizing. Diffusion coating was carried out at 1050C for 6 h under an Ar atmosphere by simultaneous germanium-doped aluminizing-siliconzing process. Cyclic oxi...

Atomization Uniformity in Gas -

There are two important aspects to good injector performance in rocket engines—the atomization performance (droplet size and distribution, for example) and uniformity of operation (even distribution of droplets in time and space). In general, both of these aspects are affected by the geometry and operating conditions of the injector. In studying atomization performance, prior work has largely f...

Chromizing-aluminizing and Chromizing-siliconizing Coating of a Ferritic Steel