Enhancing Tribological Properties of 18CrNiMo7-6 through Grain Refinement incorporating Al2O3 particles
Enhancing Tribological Properties of 18CrNiMo7-6 through Grain Refinement incorporating Al2O3 particles
复制标题
DOI：
10.1016/j.triboint.2023.109045
复制
发表时间：
2023-10
影响因子：
6.2
通讯作者：
Shaoyang Li;Gongbin Tang;Tao Zou;Jingwen Wang;Zixin Ou;Hai Lin;Fenghua Su;Zhongwei Liang-
中科院分区：
文献类型：
--
作者：
Shaoyang Li;Gongbin Tang;Tao Zou;Jingwen Wang;Zixin Ou;Hai Lin;Fenghua Su;Zhongwei Liang-
风力涡轮机齿轮是风力涡轮机的内部齿轮箱内的关键部件。然而，齿轮的易磨损性对其操作寿命产生不利影响。在这里，我们提出了一种新的方法，利用超声喷丸将Al 2 O3颗粒到18 CrNiMo 7 -6的表面上，称为USG处理。摩擦学性能测试表明，与未处理的试样相比，超声波处理后的试样的摩擦系数和磨损率分别降低了14.4%和58.3%。试验和详细分析表明，18 CrNiMo 7 -6不仅在表面细化了晶粒，而且形成了一层富含Al 2 O3的耐磨层。本文的研究结果为齿轮钢表面耐磨层的设计提供了新的思路。
Wind turbine gears are critical components within the internal gearbox of the wind turbines. However, the vulnerability of gears to wear adversely affects their operational lifespan. Here, we propose a novel approach utilizing ultrasonic shot peening to incorporate Al2O3particles onto the surface of the 18CrNiMo7–6, termed the USG treatment. The tribological test shows that the coefficient of friction and wear rate of the USG-treated sample decreased by 14.4% and 58.3% respectively, as compared to the untreated sample. Experiments and detailed analysis reveal that 18CrNiMo7–6 not only undergoes grain refinement on its surface but also forms a wear-resistant layer enriched with Al2O3. The findings here provide a new insight into the design of wear-resistant layers on gear steel surfaces.