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Fluoride induced corrosion of Ti-45Nb in sulfuric acid solutions
Corrosion Science ( IF 8.3 ) Pub Date : 2021-01-04 , DOI: 10.1016/j.corsci.2020.109232
Amin Imani , Edouard Asselin

The corrosion, passive layer characteristics, and surface morphology of Ti-45Nb in fluoride-containing H2SO4 solutions are evaluated through electrochemical measurements and surface profilometry. Ti-45Nb spontaneously passivated in solutions with 0 and 0.0025 M F, contrasting with the active-passive behaviour observed at 0.025 and 0.05 M F. The corrosion resistance of Ti-45Nb decreases with increasing fluoride concentration: the passive current density in 0.05 M F is 207 μA/cm2, which is eight times greater than the value obtained in 0 M F (26 μA/cm2).



中文翻译:

氟化物对硫酸溶液中Ti-45Nb的腐蚀

通过电化学测量和表面轮廓测量法评估了含氟H 2 SO 4溶液中Ti-45Nb的腐蚀,钝化层特性和表面形态。的Ti-45Nb自发钝化在溶液与0和0.0025 MF - ,具有在0.025和0.05 MF观察到的主动-被动行为对比- 。的Ti-45Nb的耐蚀性随着增加的氟化物浓度降低:在0.05 MF无源电流密度-是207μA/厘米2,这是比在0 MF得到的值的八倍-(26μA/厘米2)。

更新日期:2021-01-12
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