The impact of the rotation speed on the microstructure and mechanical properties of Super304H/T92 friction weld joints was studied. The properties of weld joints are shown to be adequate, with their strength and impact toughness meeting the requirements. With an increase in the rotation speed (1200–1800 rpm), the heat and number of precipitated carbide phases in the heat-affected zone of the weld joints increase, impact toughness decreases, microhardness grows, and tensile strength remains unchanged.

中文翻译：

---

搅拌转速对Super304H / T92摩擦焊接接头组织和性能的影响

研究了转速对Super304H / T92摩擦焊接接头组织和力学性能的影响。焊接接头的性能被证明是足够的，其强度和冲击韧性满足要求。随着转速（1200-1800 rpm）的增加，焊接接头热影响区的热量和碳化物相的数量增加，冲击韧性降低，显微硬度增加，拉伸强度保持不变。