O. S. Novitskaya, D. V. Lychagin, N. V. Semenchuk, O. V. Sizova, A. V. Filippov
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引用次数: 0
摘要
对钢材进行全面的机械测试,可提供有关在不同加工和操作条件下使用钢材的可能性的重要信息。考虑到塑性变形和断裂分析的发展,对测试方法进行相互比较是材料认证的一项紧迫任务。本研究致力于研究高锰钢(13 和 22 重量%锰钢)与高熵康托合金在划痕、拉伸和显微硬度测试中的变形响应特征。材料的塑性及其破坏的性质通过表面变形浮雕和断裂图进行了评估。通过分析划痕测试过程中的结构,可以评估材料的塑性程度,并将其与拉伸测试结果和破坏性质联系起来。锰含量为 13 wt.% 的钢(哈德菲尔德钢)的延展性最低,其破坏是通过准粘性机制发生的。延展性最高的是以粘性断裂机制为特征的 Cantor 合金。在所有研究材料中,Hadfield 钢的硬度最高,而 Cantor 合金的硬度最低。研究结果为重新计算不同试验的机械特性奠定了基础,同时考虑到了实施的应力状态方案和变形过程中的结构变化过程。
Deformation Behavior of Alloys Based on Iron and Manganese in Scratch, Tensile, and Indentation Tests
Comprehensive mechanical testing of steels provides important information about the possibilities of their use under different processing and operating conditions. Comparison of test methods with each other, taking into account the development of plastic deformation and fracture analysis, is an urgent task for materials certification. The present work is devoted to the study of the characteristics of the response to deformation of high-manganese steels (13 and 22 wt.% Mn steels) in comparison with the behavior of high-entropy Cantor alloy during scratching, tensile, and microhardness tests. The plasticity of the materials and the nature of their destruction were assessed by the surface deformation relief and fractography. Analysis of the structure during scratch testing made it possible to assess the degree of plasticity of the materials and relate it to the results of tensile tests and the nature of destruction. The steel with 13 wt.% Mn (Hadfield steel) the destruction of which occurs by the quasi-viscous mechanism has the lowest ductility. The highest ductility has the Cantor alloy characterized by the viscous fracture mechanism. The Hadfield steel has the highest hardness of all materials studied, while the Cantor alloy has the least hardness. The research results lay the basis for the possibility of recalculating the mechanical characteristics from different tests, taking into account the implemented stress state scheme and processes of structural changes during deformation.
期刊介绍:
Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.