Powder Electrode Materials for Creating Bimetallic Armor Plates by Electric Arc Deposition
Abstract
Purpose. Development of chemical composition, technique and technology for electric arc surfacing of a wear-resistant and impact-resistant layer with a flux cored wire, in order to create bimetallic armor plates capable of providing armor protection of a specialized vehicle (PZSA) according to the 4th class.
Method. The concept of creating bimetallic armor plates by electric arc welding of a high-strength layer on a structural steel base using flux cored wire of optimized composition was proposed. The chemical composition of the wire core and the welding modes were determined by the computational-experimental method. Metallographic analysis, hardness determination, and ballistic tests were performed.
Findings. A flux cored wire has been developed that ensures the formation of a high-quality, defect-free welded layer that corresponds to armor steels of the increased hardness class. Ballistic tests confirmed compliance with the PZSA-4 protection class.
Theoretical implications. The article deepens the understanding of the regularities of the formation of the structure and properties of the deposited metal, complexly alloyed with chromium, molybdenum, vanadium and nickel, taking into account the influence of microalloying additives of boron carbide.
Practical implications. The proposed solution allows for the rapid production or restoration of armor elements in conditions of limited production and shortage of imported materials. The technology is suitable for field application and allows it to be adapted to different types of base steel. The plates can be used both for reinforcing armored vehicles and for personal protective equipment.
Value. The research is the first to create a domestic flux-cored wire with boron-containing carbides for welding armor-resistant layers onto a steel base, providing protection class PZSA-4. The proposed technology combines simplicity and efficiency, providing ballistic protection inherent in high-cost imported analogues.
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