The effect of heat treatment on the microstructure, hardness, and abrasive wear of the hammer mills knives made of steels EN 1.2080, 1.7225, 1.7131, and 1.1191 used in the grain crop processing into groats has been studied. The wear tests were performed using an “impeller-in-cup” type machine, and metallographic studies were performed using optical and scanning electron microscopy. A comparative analysis of the steel properties was performed. Steel EN 1.2080, which demonstrated the highest wear resistance, was recommended for knife manufacturing. The optimal heat treatment conditions for such steel were proposed.

中文翻译：

---

谷物磨刀磨损优化

已经研究了热处理对由 EN 1.2080、1.7225、1.7131 和 1.1191 钢制成的锤式粉碎机刀具的微观结构、硬度和磨料磨损的影响，用于将谷物加工成碎粒。磨损测试是使用“叶轮杯”型机器进行的，金相研究是使用光学和扫描电子显微镜进行的。对钢的性能进行了比较分析。钢 EN 1.2080 具有最高的耐磨性，被推荐用于刀具制造。提出了这种钢的最佳热处理条件。