Pre-treated low carbon steel specimens with flux or + tin mixture were coated by hot-dip aluminizing process. Al alloy (6061) was melted and hold at 750 °C. Fluxed pre-tinned samples dipped in a molten bath for time intervals of 0.5, 1, 2.5 3.5 min. Applying double coating processes via tinning-aluminizing techniques facilitated the formation Fe-Al intermetallic interface increasing thickness h...

To employ Al stabilizer on Fe sheathed MgB2 wire the hot aluminizing technique was used. The present technique allows us to form MgB2 superconductor by an in-situ reaction technique and apply Al stabilizer simultaneously, because the processing temperature of MgB2 is similar to the melting temperature of Al. Two types of Fe sheathed MgB2 wires—“reacted” and “green” (unreacted)—were immersed in ...

Introduction The heat-treating industry is in need of heat-treatment furnace materials and fixtures that have a long service life and reduced heat capacity. Many of the fixtures are consumed within 1 year of exposure in high temperature carburization atmospheres. Most of these fixtures are manufactured using heat resistant alloys. Iron-nickel based and iron-nickel-chromium based alloys are expe...

The present paper describes fuzzy logic simulation of an experimental study on the behavior of hot corrosion in molten salt (Na2SO4) of steel-T21 coated by simultaneous yttrium-doped aluminizing-siliconizingprocess . Diffusion coating was carried out at 1050C for 6 hr under Aratmosphere . The weight change measurements made on the coated steel during the cyclic tests are used to determine kinet...

Nickel base superalloy alloys are used in the manufacture of gas turbine engine components, which in use are exposed to high temperatures and corrosive environments. The platinum aluminide coatings described here have been developed to protect nickel base superalloy alloys from oxidation. In this study, the effect of cyclic oxidation, platinum layer thickness and aluminizing process on beha...