Intelligent Materials and their Direction of Use

Abstract

The paper presents the manufacturing process of two classes of material that feature intelligent precursors, used for welding/cladding, and deposit layers with viable physical proprieties, that can be predetermined by a precise and well-balanced programming of the process parameters. The fields of use for these materials are those of manufacturing welded structures that have equal resistant joints, made from stainless steel with austenitic-ferrite-martensitic structure or mixes of the above mentioned structures, with the possibility of machining, in welded state, namely with self-hardening proprieties during exploitation. The methods of securing the above mentioned materials is programming, according to exploitation requirements, of the preheating and in between rows temperature, as well as the dilution degree of the filler into the base material. Results obtained by structural or morphological changes of the crystalline grains are determined by perturbing the equilibrium state and/or precipitation of secondary phases. The field of use of the methods above mentioned are valid in the interval: 30-55 HRC, namely 500-1200 N/mm2.