制备Ti-6Al-4V钛合金表面微纳米结构的工艺优化  

Process Optimization for Preparing Surface Micro-nano Structures of Ti-6Al-4V Titanium Alloy

作　　者：黄鑫 倪骁骅[1] HUANG Xin;NI Xiaohua(School of Automotive Engineering,Yancheng Institute of Technology,Yancheng 224002,China)

机构地区：[1]盐城工学院汽车工程学院,江苏盐城224002

出　　处：《广州化学》2024年第4期59-65,I0004,共8页Guangzhou Chemistry

摘　　要：采用机械打磨、酸洗和电化学法在Ti-6Al-4V钛合金上制备微纳米孔洞结构,提高钛合金表面粗糙度和孔隙率,以增强钛合金与塑料的界面粘接强度。分析极化曲线确定最佳电解液成分;通过正交实验获得电解液中的硫酸浓度、盐酸浓度、磷酸浓度、电解时间和电解温度的最优工艺参数和粗糙度、孔隙率。结果表明,当硫酸浓度为10%、盐酸浓度为5%、磷酸浓度为0 M、氯化钠浓度为0.04 g/mL、电解时间为20 min、电解温度为50℃时,得到最佳粗糙度为5.32μm,孔隙率为45.18%。该数据也是目前所查找的文献研究中已知最好的结果。Mechanical grinding,pickling and electrochemical methods were used to prepare micro-nano pore structures on Ti-6Al-4V titanium alloy to improve the surface roughness and porosity of the titanium alloy to enhance the interface bonding strength between the titanium alloy and plastic.Analyze the polarization curve to determine the optimal electrolyte composition;obtain the optimal process parameters,roughness and porosity of the sulfuric acid concentration,hydrochloric acid concentration,phosphoric acid concentration,electrolysis time and electrolysis temperature in the electrolyte through orthogonal experiments.The results show that the best results are obtained when the concentration of sulfuric acid is 10%,the concentration of hydrochloric acid is 5%,the concentration of phosphoric acid is 0 M,the concentration of sodium chloride is 0.04 g/mL,the electrolysis time is 20 min,and the electrolysis temperature is 50℃.The roughness is 5.32μm and the porosity is 45.18%.This data is also the best known result from the literature research found so far.

关 键 词：TI-6AL-4V钛合金 电化学处理 正交分析 极化曲线 微纳米结构 

分 类 号：TG171[金属学及工艺—金属表面处理]