دراسة كفاءة سبيكة الفولاذ المقاوم للصدأ المطلية بوجود الحاجز الحراري في درجات الحرارة العالية

Abstract EN

The current research aims to modify the components of some alloys by means of surface engineering through the diffusion coating technique with the presence of thermal barriers in order to obtain new alloys with high efficiency in resisting harsh environmental conditions.

vapor atmosphere of a mixture of sodium chloride and sodium sulfide at a temperature of 900 °C, and then compare it with the base alloy.

The results showed that the alloys produced in this way are very efficient.

The results showed that the coating with the thermal barrier is the best type of coating used, as it appeared to have high efficiency in resisting oxidation and provided better protection for a longer time compared to the uncoated alloy due to the oxide crust layer formed with high adhesion as well as the aluminum-rich phases.

Whether the phases are nickel aluminum or iron aluminum.

The results also showed that the thickness of the coating and the weight gained of the alloy are subject to the parabola relationship with time.