Сравнительные исследования структурно-фазового состояния и механических свойств титанового сплава Ti-6A1-4V, полученного различными методами

Abstract

The aim of the work was to carry out comparative studies of the structural-phase state and mechanical properties of the Ti-6Al-4V alloy obtained by various methods. With increasing temperature, Ti-6Al-4V alloys acquire improved plasticity properties while decreasing strength. Analysis of fractograms of the fracture surface showed that at room and at elevated temperatures, areas of ductile fracture are observed, characterized by the presence of microdepressions on the fracture surface. With an increase in temperature on the fracture surface, the formation of pores is observed in the EBM samples, which is one of the main reasons for the deterioration of the plasticity characteristics of the samples