Actual Problems in Machine Building 2016 No. 3

Актуальные проблемы в машиностроении. 2016. №3 Материаловедение в машиностроении ____________________________________________________________________ 409 7. Shubhank K., Kang Y . Critical evaluation and the rmodynamic optimization of Fe–Cu, Cu–C, Fe–C binary systems and Fe–Cu–C ternary system // Computer coupling of Phase Diagrams and Thermochemistry. – 2014. – Vol. 45. – P. 127–137. PECULIARITIES EDUCATION OF COPPER-CONTAINING INCLUSIONS IN CAST IRON, WHICH CONTAINS 14.7 % COPPER Stepanova N.V ., Junior Researcher, e-mail: stepanova@adm.nstu.tu Novosibirsk State Technical University, 20 Prospekt K. Marksa, Novosibirsk, 630073, Russian Federation Abstract In this paper we study the structural changes in the cast iron associated with an increase in the copper content up to 14.7 wt. %. The results of the study of copper-containing particles of various sizes by optical microscopy and by scanning and transmission electron microscopy submitted in paper. In the course of the work carried out analysis of the shape, size and composition of the particles, their classification, as well as the scheme of allocation of copper-based particles in the structure of cast iron. Four types of copper-based inclusions found. These inclusions are allocate in a wide range of sizes from 20 nm to 240 microns. The paper describes the conditions of formation and the differences between all four types of particles. Keywords iron, alloying copper, copper-based particles, nano-sized particles, structure Funding This study was supported by Russian Science Foundation (project No. 15-19-00230)