The article presents the results of Hardox Extreme steel tests in the as-delivered state from a steel mill (after quenching and tempering), and also in the normalized state. The research procedures included a microstructure analysis using light microscopy; and a static tensile test at ambient temperature to determine its Young’s modulus, yield strength, tensile strength, elongation and reduction in area after fracture. During the tensile tests, both the longitudinal and transverse orientation of rolling direction were taken into account. The Charpy impact test was also carried out in the temperature range of the ductile–brittle transition in connection with the fractographic analysis carried out with the use of a scanning microscope (SEM). The impact tests were carried out on samples in both directions on the plate, using the following temperatures: −40, −20, 0, +20 °C. Based on the structural and strength characteristics of Hardox Extreme steel determined on the basis of the research, in a further part of the paper the possibility of its use in machine construction elements operating in selected industrial sectors is considered/discussed, with a particular emphasis on reducing the level of energy consumption in the manufacturing and operation of the above technical facilities.

中文翻译：

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Hardox极限钢的性能分析及其在机械中的应用可能性

本文介绍了刚出厂时（淬火和回火后）以及正火状态下的Hardox Extreme钢测试结果。研究程序包括使用光学显微镜的显微结构分析；并在环境温度下进行静态拉伸试验，以确定其杨氏模量，屈服强度，拉伸强度，断裂后的伸长率和减小的面积。在拉伸试验中，同时考虑了轧制方向的纵向和横向方向。夏比冲击试验也在延性-脆性转变的温度范围内进行，结合使用扫描显微镜（SEM）进行的分形分析。冲击试验是在板上的两个方向上对样品进行的，使用以下温度：−40，−20、0，+ 20°C。根据研究确定的Hardox Extreme钢的结构和强度特性，在本文的另一部分中，考虑/讨论了其在选定的工业部门中运行的机械构造元件中使用的可能性，特别强调降低上述技术设施的制造和运营中的能耗水平。