Corrosion Electrochemical Behavior of 2024 Aluminum Alloy in Potassium Acetate Deicing Fluid

Lin Xiuzhou ^** e-mail: linxiuzhou@suse.edu.cn; baojiedou@suse.edu.cn

formal analysis

funding acquisition

School of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China

Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science & Engineering, Zigong 643000, China

Zhao Wei

writing original draft

School of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China

Yang Feng

validation

The Thirtieth Research Institute of CETC, Chengdu 610093, P. R. China

Yang Han

investigation

School of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China

Peng Qiang

writing-review and editing

School of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China

Mei Yongjun

resources

The Second Research Institute of CAAC, Chengdu 610041, P. R. China

Wang Yuhao

writing-review and editing

School of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China

Dou Baojie ^** e-mail: linxiuzhou@suse.edu.cn; baojiedou@suse.edu.cn

project administration

School of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China

Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science & Engineering, Zigong 643000, China

Composition	Cu	Si	Fe	Mn	Mg	Zn	Cr	Ti	Al
Content / %	4.33	0.33	0.19	0.61	1.57	0.14	0.04	0.06	balance

Concentration / %	T	E_cor / V_SCE	i_cor / (A cm^-2)
10	0	-0.586 ± 0.003	3.075 × 10^-7 ± 0.501
10	30	-0.611 ± 0.005	2.164 × 10^-8 ± 0.431
25	0	-0.613 ± 0.018	1.556 × 10^-7 ± 0.211
25	30	-0.638 ± 0.025	1.180 × 10^-8 ± 0.062
50	0	-0.430 ± 0.050	2.052 × 10^-8 ± 0.352
50	30	-0.553 ± 0.009	4.581 × 10^-9 ± 0.468

Cycle	W_V / (A² Hz^-1)	W_I / (A² Hz^-1)	k_V / (dB dec^-1)	k_I / (dB dec^-1)
0 T	-7.78	-19.08	-2.02	-0.55
6 T	-7.73	-19.96	-1.01	-0.50
15 T	-6.70	-19.75	-1.82	-0.45
24 T	-7.42	-20.31	-2.09	-0.53
36 T	-7.68	-19.56	-1.64	-0.52
60 T	-9.24	-19.48	-1.10	-0.55

Brasil