The Influence of Temperature on the Physical and Structural Properties of X37CrMoV5-1 Steel: Numerical Model and Experimental Research

This work concerns the theoretical and experimental study of the impact of temperature changes on the physical and microstructural properties of steel exposed to high temperatures. The study is performed, and a mathematical model is defined to determine the variable and temperature-dependent strength parameters. The article presents the experimental results obtained during a uniaxial tensile test (elastic modulus, yield strength, and tensile strength) in different thermal conditions. The heating process is done in an infrared oven at temperatures up to 1100°C. An MTS extensometer adapted to tests at high temperatures is used to measure strains. Microstructural tests and microhardness measurements are carried out for samples heated at various temperatures. Based on the obtained results, a numerical model of the static tensile test is developed using Abaqus/CAE software.