摘要
用石英晶体微天平研究了不同沉积量的ＮａＣｌ在ＳＯ２质量分数为１×１０－６时对Ｚｎ大气腐蚀的影响，分析了该条件下Ｚｎ初期大气腐蚀的规律.结果表明，Ｚｎ的腐蚀增重随ＮａＣｌ沉积量的增加而增加，它们之间有着较好的线性关系ＮａＣｌ沉积量较高时，暴露一段时间后，Ｚｎ的大气腐蚀有减弱的趋势建立了反映其腐蚀及影响因素的经验方程：△ｍ／Ａ＝Ｋ（ｔ／ｔｔｏｔ）ｂ．采用Ｘ射线衍射（ＸＲＤ）和显微红外技术（ＩＲ）对Ｚｎ表面腐蚀产物进行了分析．
By using quartz crystal microbalance (QCM) the influence of NaCl deposition on atmospheric corrosion of zinc in the presence of 1 x 10(-6) SO2 was studied. Regularity of initial atmospheric corrosion of zinc under this condition was analyzed in detail and an empiric formula, Deltam/A K(t/t(tot))(b), obtained. The relationship between mass gain of zinc and amount of NaCl deposition is linear at any time. More amount of NaCl deposition can slow down the corrosion of zinc to some extent after six to ten hours' exposure in atmospheric environment containing 1 x 10(-6) SO2. Corrosion products of zinc surface were analyzed using X-ray diffraction (XRD) and infrared spectroscopy (IR), in which Zn4SO4(OH)(6). 5H(2)O was identified.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第1期72-76,共5页
Acta Metallurgica Sinica
基金
国家自然科学基金!59899144
关键词
大气腐蚀
沉积
石英晶体微天平
锌
氧化钠
二氧化硫
Zn
atmospheric corrosion
NaCl deposition
quartz crystal microbalance (QCM)
