RESEARCH ON THE INFLUENCE OF HIGH TEMPERATURES ON THE TENACITY OF 12MoCr90 STEEL

The paper introduces the shock bending test for steel grade 12MoCr90 carried out on Mesnager-type test rods (the groove depth h = 2 mm) under high temperatures. The test rods were longitudinal, respectively cross-sectional samples of semi-finished ingots. We introduced the results of the experiments and the analysis of the influence that the type of test rod sampled longitudinally or cross-sectionally with respect to the rolling direction, has upon the values of resilience. During the experiments, the heating of the test rods meant for bend shock under high temperatures was being done in an oven built by the author on this particular purpose