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- Title
HIGH TEMPERATURE DEFORMATION RESISTANCE OF BCT STEEL.
- Authors
Pernis, Rudolf; Škrobian, Milan
- Abstract
The knowledge of deformation resistance is needed for simulation of forming processes at higher and high temperatures. A static tensile test does not give an answer how deformation resistance depends on deformation rate. Deformation resistance was measured using dilatometer DIL805A/D equipped with hydraulic unit. This setting allows compression tests during hightemperature material forming. Material forming can be carried out under controlled conditions. Such conditions are deformation level, deformation temperature and deformation rate. Deformation rate can be set between 0.001 and 20 s-1. Temperature can be kept from ambient temperature up to 1500 °C. BCT steel was used for experiments. Deformation resistance was measured for experimental matrix of 5 deformation temperatures by 5 deformation rates. The experimental results were described by a proposed mathematical model where deformation curve is a function of deformation. In addition, an equation is proposed for calculation of deformation resistance as a function of two variables: degree of deformation and temperature of deformation. Prediction of deformation curves was done using above equation for the temperatures of (850, 950, 1050, 1150) °C. A visualization of curves for various temperatures is shown in a paper.
- Subjects
HIGH temperatures; DEFORMATIONS (Mechanics); STRESS-strain curves; TENSILE tests; BORON steel; STEEL
- Publication
University Review (1337-6047), 2021, Vol 15, Issue 1, p51
- ISSN
1337-6047
- Publication type
Article