Lu Die, Ni Jing, Zhang Zhen, Feng Kai
School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
School of Mechanical and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
Materials (Basel). 2024 Aug 22;17(16):4166. doi: 10.3390/ma17164166.
The corrosion protection of tool steel surfaces is of significant importance for ensuring cutting precision and cost savings. However, conventional surface protection measures usually rely on toxic organic solvents, posing threats to the environment and human health. In this regard, an integrated process of laser texturing and electrostatic flocking is introduced as a green anti-corrosion method on a high-speed steel (HSS) surface. Drawing from the principles of textured surface energy barrier reduction and fiber array capillary water evaporation enhancement, a flocking surface with a synergistic optimization of surface wettability and evaporation performance was achieved. Then, contact corrosion tests using 0.1 mol/L of NaCl droplets were performed. Contact angles representing wettability and change in droplet mass representing evaporation properties were collected. The elements and chemical bonds presented on the corroded surfaces were characterized by X-ray photoelectron spectroscopy (XPS). The results revealed that the flocking surface exhibited the lowest degree of corrosion when compared with smooth and textured surfaces. Corrosion resistance of the flocking surface was achieved through the rapid spread and evaporation of droplets, which reduced the reaction time and mitigated electrochemical corrosion. This innovative flocking surface holds promise as an effective treatment in anti-corrosion strategies for cutting tools.
工具钢表面的腐蚀防护对于确保切削精度和节省成本至关重要。然而，传统的表面防护措施通常依赖有毒有机溶剂，对环境和人类健康构成威胁。在这方面，引入了激光纹理化和静电植绒的集成工艺，作为高速钢（HSS）表面的一种绿色防腐方法。借鉴纹理化表面能量势垒降低和纤维阵列毛细管水蒸发增强的原理，实现了表面润湿性和蒸发性能协同优化的植绒表面。然后，使用0.1 mol/L的NaCl液滴进行接触腐蚀试验。收集代表润湿性的接触角和代表蒸发特性的液滴质量变化。通过X射线光电子能谱（XPS）对腐蚀表面上存在的元素和化学键进行了表征。结果表明，与光滑表面和纹理化表面相比，植绒表面的腐蚀程度最低。植绒表面的耐腐蚀性是通过液滴的快速铺展和蒸发实现的，这减少了反应时间并减轻了电化学腐蚀。这种创新的植绒表面有望成为切削刀具防腐策略中的一种有效处理方法。
