冷喷涂制备TC4-WC涂层的组织及耐蚀性能研究

于宝义, 梅桐, 郑黎, 常东旭, 吉梅琳

Microstructure and Corrosion Performance of Cold Sprayed TC4-WC Coatings

YU Baoyi, MEI Tong, ZHENG Li, CHANG Dongxu, JI Meilin

表1 WC含量不同的TC4-WC涂层动电位极化拟合结果

Table 1 Fitting results of potentiodynamic polarization curves of Q235 substrate and TC4-WC coatings with different volume fractions of WC

Sample Corrosion potential / V Corrosion current density / A·cm-2 Q235 -1.02 2.11 × 10-3 TC4 -0.59 7.6 × 10-4 TC4-15%WC -0.51 5.1936 × 10-5 TC4-20%WC -0.464 1.2113 × 10-5 TC4-25%WC -0.402 7.824 × 10-6 TC4-30%WC -0.448 9.98 × 10-6