Mechanistic study of ammonium-induced corrosion of AZ31 magnesium alloy in sulfate solution

Hui Pan, Liwei Wang, Yi Lin, Feng Ge, Kang Zhao, Xin Wang, Zhongyu Cui

Table 2 Corrosion parameters of AZ31 magnesium alloys in different (NH₄)₂SO₄ solution derived from the IR-compensated polarization curves.

NH₄⁺ concentration	E_corr (V_SCE)	b_c (V dec^-1)	i_corr (mA cm²)
0.001 M	-1.524	-0.618	0.029
0.01 M	-1.559	-0.636	0.157
0.1 M	-1.722	-0.972	1.954