Abstract
This work shows the results of research of the fine and dislocation structure of the transition layer of 18CrNi3Mo low-carbon steel after the influence of electrolytic plasma. Conducted research has shown that the modified steel layer, as a result of carbonitriding, was multiphase. Quantitative estimates were made for carbonitride М23(С,N)6 in various morphological components of α-martensite and on average by material in the transition layer of nitro-cemented steel. It was established that α-phase is tempered martensite after nitrocementation. Released martensite is represented by batch, or lath and lamellar low-temperature and high-temperature martensite. Inside the tempered martensitic crystals, lamellar cementite precipitates are simultaneously present, and residual austenite is found along the boundaries of the martensitic rails and plates of low-temperature martensite. It was determined that inside the crystals of all morphological components of α-martensite there are particles of carbonitride М23(С,N)6.
Funding statement: This research was funded by the Science Committee of the Ministry of Education and Science of the Republic of Kazakhstan (Grant No. AP08857733).
About the authors
Dr. Lyaila Bayatanova was born in 1983, Kazakhstan. She studied Physics and Computer Science in Sarsen Amanzholov East Kazakhstan State University in 2006, continued her education at Daulet Serikbaev East Kazakhstan State Technical University and received her master’s degree in 2008, continuing her PhD at the same university since 2011. Her research interests lie in the physics of condensed state. She is a senior researcher of the Scientific Research Center “Surface Engineering and Tribology” by nonprofit limited company Sarsen Amanzholov East Kazakhstan University, Ust-Kamenogorsk, Kazakhstan.
Prof. Dr. Bauyrzhan Rakhadilov, born in 1988, studied physics and the mechanical properties of steel under thermal treatment at DauletSerikbaev East Kazakhstan Technical University, Kazakhstan. He began work at the university as a Scientific Assistant. His research is focused on the physics of condensed state, plasma technology, polymers and tribology research. He is a senior researcher of the Scientific Research Center “Surface Engineering and Tribology” by nonprofit limited company Sarsen Amanzholov East Kazakhstan University, Ust-Kamenogorsk, Kazakhstan.
Prof. Dr. Sherzod Kurbanbekov was born in 1988. He works at Khoja Akhmet Yassawi International Kazakh-Turkish University, department of physics. His research interests include the physics of condensed state, plasma technology and alternative energy forms. He has published more than 85 papers in refereed journals. He is currently an Associate Professor at the Khoja Akhmet Yassawi International Kazakh-Turkish University.
Prof. Dr. Mazhyn Skakov, born in 1952, studied the physics of condensed state, radiation physics of solid body and reactor material testing at the Tomsk Polytechnic Institute, Russia. He chaired the Research-Scientific Institute of Nano-technologies and New Materials. He is Deputy R&D Director General of the Republican State Enterprise National Nuclear Center of the Republic of Kazakhstan, Kurchatov, Kazakhstan.
Prof. Dr. Natalia Popova, born 1952 in Russia, holds a Ph.D. in technical science. She is also a research assistant of the Tomsk state architecture and building university (Russia). Her research interests are focused on the physics of condensed state. She has published more100 papers in refereed journals.
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