Study on the Influence of Grain Size and Microstructure on the Mechanical Properties of Fe-6.5 wt%Si High Silicon Steel Prepared by CVD Method

As a soft magnetic material with excellent performance, silicon steel is widely used in motors and transformers, but its mechanical properties drop sharply when the content too high. Therefore, it of great significance to study influence on mechanisms improve product quality steel. In this paper, Fe-6.5 wt%Si was prepared by vacuum tube furnace, combined metallographic experiment, scanning electron microscope analysis explore infiltration temperature time grain boundary size, tensile test 120 s at 1200 °C obtained test’s extension parameter. Given difficulty adjusting size structure grains boundaries test, paper discusses different microstructures through simulation. The results show that refinement helps strength elongation steel, columnar can slightly increase their greatly reduce strain rate This method research development be comprehensive performance