Development of a Method for Controlled Hydrogen Fragmentation of Medium-Carbon Steels to Reduce Their Crack Resistance

IF 0.7 4区 材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Strength of Materials Pub Date : 2024-02-27 DOI:10.1007/s11223-024-00600-4
V. R. Skalskyi, I. M. Dmytrakh, O. T. Tsyrulnyk, A. M. Syrotyuk, O. I. Zvirko
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Abstract

The paper considers the use of hydrogen as a component of the technological process to solve an applied problem - the control of material defects, which consisted of controlled fragmentation of steel under dynamic loading to facilitate the cracking of the metal volume. Medium-carbon pearlite-ferrite steel of steel 60 types under electrochemical hydrogenation is studied. The criterion parameter of the material state was the energy of impact loading by three-point bending of smooth beam specimens. By selecting the electrochemical hydrogenation modes in terms of intensity (current) and duration of the process, as well as the composition of the electrolyte, a significant reduction in the energy intensity of steel fracture was obtained, which correlates with the residual hydrogen concentration in the metal. Metallographic analysis of the surface of the specimens confirmed the hydrogenation effect on the initiation of defects, which can be used for controlled steel fragmentation.

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开发一种中碳钢受控氢破碎以降低抗裂性的方法
本文探讨了使用氢作为技术工艺的组成部分来解决一个应用问题--材料缺陷控制,其中包括在动态加载下控制钢的碎裂,以促进金属体积的开裂。对电化学氢化条件下的 60 型中碳珠光体铁素体钢进行了研究。材料状态的标准参数是光滑梁试样三点弯曲冲击加载的能量。通过选择电化学氢化模式的强度(电流)和持续时间以及电解质的成分,钢断裂的能量强度显著降低,这与金属中的残氢浓度有关。试样表面的金相分析证实了氢化对缺陷产生的影响,这种影响可用于控制钢的断裂。
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来源期刊
Strength of Materials
Strength of Materials MATERIALS SCIENCE, CHARACTERIZATION & TESTING-
CiteScore
1.20
自引率
14.30%
发文量
89
审稿时长
6-12 weeks
期刊介绍: Strength of Materials focuses on the strength of materials and structural components subjected to different types of force and thermal loadings, the limiting strength criteria of structures, and the theory of strength of structures. Consideration is given to actual operating conditions, problems of crack resistance and theories of failure, the theory of oscillations of real mechanical systems, and calculations of the stress-strain state of structural components.
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