CHANGE IN THE PROPERTIES OF BRASS LAF 94 -0.5-0.15 DEPENDING ON FROM THE CONTENT OF MODIFYING COMPONENTS

The article presents the results of a study of changes in the properties of brass LAF 94-0.5-0.15 depending on the content of modifying components. Four samples of brass LAF 94-0.5-0.15 with the addition of aluminum and phosphorus modifiers were obtained by casting. The elemental composition of the obtained samples was determined by atomic emission spectroscopy and X-ray diffractometry. Maps of the distribution of modifiers on the surface of the obtained samples were compiled by electron microscopy. The microhardness of the samples was determined. It was found that with an increase in the concentration of the modifier - aluminum, the microhardness of the samples decreases. By changing the content of the constituent components of brass and adding modifying elements to it, it is possible to optimize its reflective and mechanical properties. Homogeneous distribution of modifier elements is shown in a photograph in reflected electrons BSE, obtained with a scanning electron microscope, show that the sample is homogeneous and the modifying elements are distributed uniformly over the entire surface of the sample. Keywords: brass, modifier, microhardness, reflectivity, X-ray diffractometry.