Numerical Model of Thermal Field Developed in Fe_(67)Cr_4Mo_4Ga_4P_(12)B_5C_4 Bulk Amorphous Alloy Processing

摘要

Metallic amorphous materials were developed during the 1980's as new materials, with very interesting industrial properties (heat conductivity, magnetic properties, fusion temperature, corrosion resistance, etc.). The technology required to obtain these materials (based on very rapid cooling of a melted alloy with glass forming ability), has limitations because of the dimensions of the products that can be obtained with amorphous structure (thickness has to be very small), which can be overpassed by the development of bulk amorphous alloys with high glass forming ability and good control of the cooling speed. The numerical modeling of thermal field during ultra-high cooling, presented in this paper, allows researchers to estimate the results of applying certain cooling conditions during experiments. This model will help developers of bulk amorphous alloys in checking if conditions to obtain an amorphous alloy are ensured, with fewer experimental tests, less time and low expenses.