低压冷喷涂制备Al(Y)-30%Al2O3涂层及其海水腐蚀行为

低压冷喷涂制备Al(Y)-30%Al₂O₃涂层及其海水腐蚀行为

白杨,王振华,李相波,李焰

Corrosion Behavior of Al(Y)-30%Al₂O₃ Coating Fabricated by Low Pressure Cold Spray Technology

Yang BAI,Zhenhua WANG,Xiangbo LI,Yan LI

表1 不同Y添加量Al(Y)-30%Al₂O₃涂层在海水中浸泡720 h后的动电位极化拟合结果

Table 1 Results from the potentiodynamic polarization test of the Al(Y)-30%Al₂O₃ (volume fraction) coatings with different contents of Y after 720 h immersion in seawater

Mass fraction of Y %	E_corr (vs SCE) V	i_corr μA·cm^-2	β_a mV·dec^-1	β_c mV·dec^-1
0	-0.7857	1.7589	98.13	-132.77
0.05	-0.7334	0.5879	54.06	-117.82
0.1	-0.7432	0.3719	130.59	-131.46
0.2	-0.7697	0.3473	158.16	-126.88
0.5	-0.7664	1.2039	70.97	-122.85