成型方向及热处理对选区激光熔化Ti6Al4V合金腐蚀性能的影响

张珊珊, 刘元才, 徐铁伟, 杨发展

Effect of Build-up Direction and Annealing on Corrosion Properties of Selected Laser Melting Ti6Al4V Alloy

ZHANG Shanshan, LIU Yuancai, XU Tiewei, YANG Fazhan

表1 不同状态SLM-Ti6Al4V合金的EIS等效电路中部分元件参数

Table 1 Fitting parameters of EIS of SLM-Ti6Al4V alloy with different states

Samples Rs / Ω·cm2 Q1 / 10-5 μF·cm-2 Rt / kΩ·cm2 Q2 / 10-5 μF·cm-2 Rp / Ω·cm2 AS-XY 28.55 1.63 193.35 - - AS-XZ 32.72 2.04 513.00 - - 650-XY 31.03 2.56 103.30 - - 650-XZ 33.65 1.62 128.50 - - 800-XY 29.74 2.13 71.47 - - 800-XZ 33.94 2.05 78.98 - - 900-XY 28.38 3.51 19.20 3.06 7.21 × 103 900-XZ 37.52 2.46 18.51 8.09 2.00 × 104 1050-XY 34.12 2.12 54.64 32.63 1.62 × 1013 1050-XZ 30.32 2.08 57.83 42.18 5.40 × 1011