Abstract

The structure, the mechanical properties, and the impact toughness in the temperature range from +20 to –70°C of a new low-alloy wear-resistant ledeburitic 220Kh2FYu steel are studied. After proper heat treatment, the steel is shown to have the structure of a natural precipitation-hardened composite material and a high hardness (68–70 HRC). The developed steel is compared with 12Kh2N4VA steel.

中文翻译：

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新型高硬度低合金耐磨褐变钢及其在负温度下的应用前景

摘要

研究了一种新型的低合金耐磨长链220Kh2FYu钢在+20至–70°C温度范围内的组织，力学性能和冲击韧性。经过适当的热处理，表明该钢具有天然沉淀硬化复合材料的结构和高硬度（68–70 HRC）。将开发的钢与12Kh2N4VA钢进行比较。