Archive | 2021
Study of structure, phase composition and physicomechanical properties of modified castings from heat-temperature ZhS3DK alloy
Abstract
A study of the structure and properties of castings made with the use of various modifiers has been carried out. It was found that when the alloys are modified with titanium carbonitride and all used modifiers except tungsten carbide, the grain size decreases, and carbide precipitates are evenly distributed, contributing to an increase in mechanical properties. Using the method of differential thermal analysis, the critical temperatures at which phase transformations occur in the cast ZhS3DK alloy and its analogs with modifiers have been established. The modes of heat treatment of modified cast heat-resistant alloys of the ZhS3DK type have been specified.