CORRELATION OF CHARACTERISTICS BY MULTICOMPONENT POWDER MATERIALS WITH ELASTIC WAVE VELOCITY

Abstract

According to the results of statistical processing of the experimental data array, the relationship between the elastic waves velocity with the characteristics of the composition and the properties of multicomponent powder materials on the basis of copper, in which the physical and mechanical properties of the original powders are significantly different. The effectiveness of using the methods of evaluation depends essentially on the physical and mechanical properties of the raw powders and on the co-influence of various factors. Therefore, in order to increase it, it is necessary to adapt the control methodology to the particulars of the composition of the material by conducting a more detailed statistical analysis and using special approaches for abstraction from the hindering factors. In the conditions of sintering, the chemical interaction between the initial components and inclusions did not occur and new phases were not formed. It was shown that the use of the elastic waves velocity in such materials is not only promising not only for determining the module of elasticity and density of the material functionally related to it, but also for developing on the basis of correlation dependences of methods of non-destructive evaluation of material properties such as hardness, strength, wear, coefficient of friction, as well as parameters of structure - porosity and the composition.