Structure and properties of modified heat-resistant alloy

The Aim. The aim of this work is to study the effect of modifying microdispersible composition on the structure and improving the properties of heat-resistant nickel alloy ZhS3DK-VI, networking structure of the alloy mechanical properties. Methods. Applying modern methods of research: metallographic and energy dispersive analysis, measurement of the mechanical properties of the complex. All studies were performed on standardized equipment. The Results. Found that the use of complex nanodispersed modifiers allows you to actively influence the dispersion of macro- and microstructure, mechanical properties, heatresistant nickel alloys. Processing molten heat-resistant nickel alloy ZhS3DK-VI complex modifier allows a uniform melkozerennuyu structure and mechanical properties of complex high nickel alloy. Scientific novelty. Melt Treatment developed complex modifier promotes grain refinement alloy ZhS3DK-VI 6 ... 10 times, improve dispersion of structural components in 3 ... 4 times and uniform distribution in the amount of grains. It is possible to increase the ultimate strength Rm of the alloy at 8 ... 10%, yield a0,2 - 10 ... 13%, elongation 5 - 19 ... 21%, the toughness KCU - 40 ... 44%. First established between the formation of the transition layer of reinforcing phases Ti (C, N) and a matrix of a nickel alloy, wherein the content of W and Mo contents exceed their matrix. Education of the transition layer due to the diffusion of the main alloying elements and provides a reliable connection with hardening phases of the alloy matrix. Transition layer prevents diffusion of titanium in the titanium carbonitride matrix to provide phase stability and efficiency of work hardening alloy ZhS3DK-VI at elevated temperatures. The practical significance. Developed temperature-time parameters nanomodifitsirovaniya ZhS3DK-VI alloy temperature modification was in 1630 ... 1650 ±10 ° C; duration modifier in the melt is 3 ... 5 minutes. Based on the results of the research developed technological advice on the preparation of modified nickel alloy ZhS3DK-VI with Enhanced mechanical properties. The technological instruction melting alloy ZhS3DK-VI using nanomodifier.