Abstract
Abstract: The aim of the research is to study and obtain new materials for sub-assemblies and machine-tools specific for the internal combustion engines, with upgraded properties of thermal transfer as compared to the alloys used on a large scale. The synthesis of some "atomic clusters" from metals by the method of the condensation in gas, followed by the in situ consolidation, under high vacuum conditions, led to the production of a new class of materials with ultra-fine grains. These materials have special properties, often upgraded as compared with the conventional materials. From this reason, a real science of both metallic and non-metallic powders metallurgy has developed in the last 20 years. The use of these materials in industry determines economies of non-ferrous metals and makes possible the simplification of the manufacturing technology and reduces the production losses. The subsequent upgrading of these materials will be oriented towards the optimization of the static strength.
Keywords: machine-tool, powders metallurgy, production losses.