Corrosivity of haze constituents to pure Mg

• 作者: Chen Zhao Fuyong Cao Guang-Ling Song
• 来源期刊: 镁合金学报(英文)
• 学科: 工学
• 关键词: Haze(PM2.5) Mg CORROSION
• 年，卷（期）: mhjxbyw_2020,（1）
• 页码范围: 150-162
• 页数: 13页
• 分类号: TG1

摘要

The corrosion behavior of pure Magnesium(Mg)in a Mg(OH)2-saturated solution containing different individual constituents of PM2.5 in haze were studied by hydrogen evolution,weight loss and electrochemical experiments.The results indicated that the corrosivity of these constituents to pure Mg decreased in the following order:(NH4)2SO4>Haze-contaminated-solution>NH4NO3>NH4Cl>NaCl≈KCl≈Na2SO4≈MgCl2≈CaSO4>Mg(OH)2(basic solution)>Ca(NO3)2.Possible mechanisms behind the different corrosion behaviors of Mg in response to these constituents were also briefly discussed in this paper.