Aluminide coating on stainless steel for nuclear reactor application: a preliminary study

Abstract

ABSTRACT

 Stainless Steels have been used as structural materials in the nuclear reactor since its first generation. Stainless Steel type 304 and 316 are commonly used in structural components. Since the first generation materials, improvements were made on Stainless Steels. This includes addition of stabilizing elements and by modification of metallurgical structure. This study investigates the formation of aluminide coating on Stainless steels by diffusion to help improve corrosion resistance. Stainless Steel type 304 and 316 subtrates were immersed in molten aluminum at 750^oC for 5 minutes. Interaction between molten aluminum and solid to form the outer aluminide coating by hot dipped aluminizing is studied.

 ABSTRAK 

Keluli Tahan Karat telah digunakan sebagai bahan struktur di reaktor nuklear sejakgenerasi pertamanya. Jenis Keluli Tahan Karat 304 dan 316 biasanya digunakan dalam komponen struktur. Sejak bahan-bahan generasi pertama, peningkatan telah dibuat di Stainless Steels. Ini termasuk tambahan menstabilkan unsur dan oleh pengubahsuaian struktur pelogaman. Kajian ini menyiasat pembentukan salutanaluminide di keluli Stainless oleh resapan membantu meningkatkan rintangan kakisan. Jenis Keluli Tahan Karat 304 dan 316 subtrates asyik dengan aluminiumlebur di 750oC selama 5 minit. Interaksi antara aluminium lebur dan padu untuk membentuk salutan aluminide luar dengan panas cecah pengaluminiuman dirancang.