Ti6Al4V钛合金渗碳层在HF中的腐蚀行为

李坤茂,刘静,张晓燕,李宏,代燕

Corrosion Behavior of Carburized Ti6Al4V Ti-alloy in HF Solution

Kunmao Li,Jing LIU,Xiaoyan ZHANG,Hong LI,Yan DAI

表3 钝化膜施主密度或受主密度的拟合结果

Table 3 Fitting results of donor density or acceptor density of passivation film

Sample Potential range/V Flatband potential/V Donor density/Acceptor density Original sample 0~0.4 -0.74 2.32×1032 cm-3 0.4~1 1.80 2.22×1030 cm-3 850℃ 0~0.4 -0.08 2.48×1030 cm-3 0.4~1 -0.35 1.81×1030 cm-3 880℃ 0~0.4 -0.18 3.87×1030 cm-3 0.4~1 0.35 0.51×1030 cm-3 910℃ 0~0.4 -0.32 8.26×1030 cm-3 0.4~1 0.38 0.30×1030 cm-3