低模量耐腐蚀亚稳 β 钛合金的电子束增材制造与性能研究

衣俊达, 冷傲, 宫得伦, 韦博鑫

Microstructureand Properties of Low Modulus Corrosion-resistant Metastable β-Ti Alloy Prepared by Electron Beam Melting

YI Junda, LENG Ao, GONG Delun, WEI Boxin

表1 EIS拟合结果

Table 1 EIS fitting results

Type Time / d Rs / Ω·cm2 Qf / 10-5 S·cm-2·S n n1 Rf / Ω·cm2 Qdl / 10-5 S·cm-2·S n n2 Rct / 106 Ω·cm2 TC4 alloy 0 22.45 2.48 0.9 17.93 0.18 1.00 0.83 1 21.41 1.44 0.92 24.77 0.74 0.91 8.20 2 20.93 1.31 0.93 22.23 0.76 0.91 4.07 3 19.99 1.18 0.94 18.76 0.82 0.92 3.44 4 20.78 1.17 0.94 21.10 0.78 0.92 3.99 5 19.61 1.05 0.95 17.94 0.89 0.91 5.81 6 20.93 1.04 0.95 18.53 0.87 0.91 6.93 7 20.52 1.11 0.94 22.48 0.76 0.92 5.94 EBM-Ti15Nb2.5Zr4Sn 0 20.74 2.02 0.93 23.30 1.62 0.92 0.71 alloy 1 20.1 1.49 0.94 17.81 1.41 0.91 2.65 2 18.94 1.08 0.95 18.60 1.18 0.91 7.07 3 18.71 0.88 0.98 13.56 1.58 0.89 5.36 4 20.38 0.85 0.98 15.02 1.51 0.89 5.82 5 20.24 1.27 0.94 18.86 1.00 0.92 1.54 6 21.15 0.80 0.98 15.12 1.45 0.89 6.16 7 21.09 0.82 0.98 15.66 1.38 0.89 6.12