Abstract

In this paper, we present the results of laboratory studies of the effect of the tempering temperature of hardened rolled structural steel with a carbon content of 0.18–0.20% on changes in the structure, the microstress level and dislocation density, mechanical properties and resistance to cracking in a hydrogen sulfide-containing environment. A metal structure with a microstress level of 0.08–0.075% and a dislocation density of 1.20 × 10¹³ m^–2, a metal matrix hardness HV of less than 200, providing resistance against cracking in H₂S environment, is shown to be formed after quenching at 920°C and tempering in the temperature range of 600–720°C.

中文翻译：

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热加工后轧制结构钢的抗氢裂性能

摘要

在本文中，我们介绍了碳含量为 0.18-0.20% 的淬火轧制结构钢的回火温度对组织变化、微应力水平和位错密度、机械性能和抗冲击强度的影响的实验室研究结果。在含硫化氢的环境中裂解。显示形成了微应力水平为 0.08-0.075%、位错密度为 1.20 × 10 ¹³ m ^–2、金属基体硬度 HV 小于 200、在 H ₂ S 环境中具有抗开裂能力的金属结构在 920°C 淬火并在 600-720°C 温度范围内回火后。