期刊论文

中文

工业水处理

1005-829X

2014

34

10

69-72

本校为第一机构

使用电化学阻抗法及Tafel极化法在模拟低压工业锅炉炉水介质中研究了 HEDP对20#碳钢的缓蚀性能,并探讨了炉水中Ca~(2+)、C1-以及SO_4~(2-)对HEDP缓蚀性能的影响。实验结果表明:在模拟炉水介质中,当HEDP投加量为25 mg/L时,其对碳钢具有最佳的缓蚀效果;HEDP对碳钢腐蚀的抑制主要作用于阳极失电子反应,HEDP是一种以抑制阳极为主的缓蚀剂;炉水中Ca~(2+)的存在会影响HEDP对碳钢电极的极化过程;C1-、SO_4~(2-)等侵蚀性阴离子会促进腐蚀的加剧,影响HEDP的缓蚀性能。

Using electrochemical impedance spectroscopy and Tafel polarization method in simulated boiler water medium of the low pressure industrial boiler,the HEDP corrosion inhibition capacity for 20 # carbon steel has been studied. The effects of Ca2+,Cl-and SO42-in boiler water on the corrosion inhibition capacity of HEDP are discussed. The results show that when 25 mg/L of HEDP is added to the stimulated boiler water medium,the best corrosion in-hibition result can be obtained. he inhibition effect of HEDP on carbon steel is mainly in anode betatopic reaction. HEDP is a kind of corrosion inhibitor ...