Abstract In the present work, the slurry erosion tests were carried out to investigate the influence of heat treatment on slurry erosion process of ferritic X10CrAlSi18 stainless steel using a slurry pot test rig. X10CrAlSi18 stainless steel was tested in as-received condition and after annealing at three different temperatures: 600 °C, 800 °C and 1000 °C. Degradation of materials due to slurry erosion depends on many factors connected with fluid flow conditions, properties of target material and erodent characteristics. In this case, factors related to the properties of the eroded material such as microstructure, grain size, work hardening, hardness played an important role. The heat treatment decreased hardness of this steel and increased erosion resistance. Microstructure was one of the most important parameters influencing the slurry erosion process of tested materials. X10CrAlSi18 stainless steel after annealing at 600 °C with fine-grained microstructure and the deepest of work hardening layer obtained the best resistance to slurry erosion. Heat treatment contributed to approximately 55%, 23% and 41% decrease in mass loss compared to steel in as-received condition. After slurry erosion tests craters, fracture, ridges and flakes were observed on the eroded surface. Furthermore, to identify the dominant mechanism of erosion, the erosion efficiency parameter was used, η.

中文翻译：

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退火温度对铁素体X10CrAlSi18钢耐浆料冲刷性能的影响

摘要 在目前的工作中，采用浆槽试验台进行浆液侵蚀试验，研究热处理对铁素体X10CrAlSi18不锈钢浆液侵蚀过程的影响。X10CrAlSi18 不锈钢在原样和在三种不同温度下退火后进行测试：600 °C、800 °C 和 1000 °C。由于泥浆侵蚀导致的材料降解取决于与流体流动条件、目标材料的特性和侵蚀特性相关的许多因素。在这种情况下，与被侵蚀材料的性质有关的因素，如微观结构、晶粒尺寸、加工硬化、硬度发挥了重要作用。热处理降低了这种钢的硬度并增加了抗侵蚀性。微观结构是影响被测材料泥浆侵蚀过程的最重要参数之一。X10CrAlSi18 不锈钢在 600°C 退火后具有细晶组织和最深的加工硬化层，获得了最好的抗泥浆侵蚀能力。与原样条件下的钢相比，热处理使质量损失减少了大约 55%、23% 和 41%。泥浆侵蚀试验后，在侵蚀表面观察到凹坑、裂缝、脊和薄片。此外，为了确定侵蚀的主要机制，使用了侵蚀效率参数 η。与原样条件下的钢相比，热处理使质量损失减少了大约 55%、23% 和 41%。泥浆侵蚀试验后，在侵蚀表面观察到凹坑、裂缝、脊和薄片。此外，为了确定侵蚀的主要机制，使用了侵蚀效率参数 η。与原样条件下的钢相比，热处理使质量损失减少了大约 55%、23% 和 41%。泥浆侵蚀试验后，在侵蚀表面观察到凹坑、裂缝、脊和薄片。此外，为了确定侵蚀的主要机制，使用了侵蚀效率参数 η。