Thermal deformation of iron-carbon alloys and its influence on the diagramme of FE-C state

• Date: 2014
• Main Authors: Мацишин, Сергій Олегович, Бережний, Микола Миколайович, Чубенко, Вікторія Анатоліївна, Хіноцька, Алла Анатоліївна
• Format: Article
• Language: Ukrainian
• Published: Інститут енергетичних машин і систем ім. А. М. Підгорного Національної академії наук України 2014
• Subjects: research; expansion; heating; alloy; iron; carbon; melting temperature; specific volume; density; lattice parameter; УДК 621.771
• Online Access: https://journals.uran.ua/jme/article/view/21323
• Journal Title: Energy Technologies & Resource Saving

Generalization of the results of theoretical and experimental studies of thermal expansion of iron-carbon alloys at heating to the melting temperature was conducted. The temperature dependences of specific volume and density of iron-carbon alloys were defined. The dependences between specific volume and lattice parameter were revealed. Temperature dependences of specific volume and density of steel and iron lattice parameter were corrected and complemented.Using formulas, such concepts as dependence of linear and volumetric expansion values at heating steel bodies on the temperature, linear expansion coefficient for steel products, relative deformation, volumetric expansion of steel and insulated bodies, were described.Graphs of the following dependencies: dependence of linear and volumetric expansion coefficients and linear and volumetric steel deformation relatives on the temperature, temperature dependences of the specific volume and density, dependences of specific volume and lattice parameter of iron modifications (α-, γ-, δ-Fe) on the temperature, dependences of specific iron volume on lattice parameters for different modifications, dependences of austenite lattice parameter on the carbon content and temperature were constructed.