Scale Inhibition of Electromagnetic Water Treatment and Corrosion Behavior of Carbon Steel in Simulated Water

Author(s):  
Hong-Hua Ge ◽  
Xiao-Ming Gong ◽  
Rui Liu ◽  
Xin-Jing Meng ◽  
Yong Gu
2013 ◽  
Vol 67 (7) ◽  
pp. 1544-1550 ◽  
Author(s):  
Bin Zeng ◽  
Mao-dong Li ◽  
Zhi-ping Zhu ◽  
Jun-ming Zhao ◽  
Hui Zhang

The primary method used for boiler water treatment is the addition of chemicals to industrial boilers to prevent corrosion and scaling. The static scale inhibition method was used to evaluate the scale inhibition performance of 1-hydroxyethylidene-1, 1-diphosphonic acid (HEDP). Autoclave static experiments were used to study the corrosion inhibition properties of the main material for industrial boilers (20# carbon steel) with an HEDP additive in the industrial boiler water medium. The electrochemical behavior of HEDP on carbon steel corrosion control was investigated using electrochemical impedance spectroscopy and Tafel polarization techniques. Experimental results indicate that HEDP can have a good scale inhibition effect when added at a quantity of 5 to 7 mg/L at a test temperature of not more than 100 °C. To achieve a high scale inhibition rate, the HEDP dosage must be increased when the test temperature exceeds 100 °C. Electrochemical and autoclave static experimental results suggest that HEDP has a good corrosion inhibition effect on 20# carbon steel at a concentration of 25 mg/L. HEDP is an excellent water treatment agent.


2008 ◽  
Author(s):  
Yutaka Yokoyama ◽  
Rieko Takahashi ◽  
Hidekazu Asano ◽  
Naoki Taniguchi ◽  
Morimasa Naito

2021 ◽  
Vol 773 ◽  
pp. 145706
Author(s):  
Rui-Xia Gao ◽  
Yan Li ◽  
Ting-Ting Zhu ◽  
Yi-Xiu Dai ◽  
Xiao-Hong Li ◽  
...  

2015 ◽  
Vol 56 (7) ◽  
pp. 1107-1111 ◽  
Author(s):  
Soon-Hyeok Jeon ◽  
Geun-Dong Song ◽  
Do-Haeng Hur

2009 ◽  
Vol 417-418 ◽  
pp. 417-420 ◽  
Author(s):  
Shigenobu Kainuma ◽  
Kunihiro Sugitani ◽  
Yoshihiro Ito ◽  
In Tae Kim

The purpose of this research is to propose a method for evaluating the time-dependent corrosion behavior of carbon steel plates using an atmospheric corrosion monitor (ACM) corrosion sensor consisting of a Fe/Ag-galvanic couple. Atmospheric exposure tests were carried out on steel plates for periods of 6, 12, and 24-months on the island of Okinawa in Japan. The Specimens were mounted on racks at angles of 0, 45 and 90 to the horizontal to obtain corrosion data in various corrosive environments. In addition, the environments of the skyward- and groundward-facing surfaces of the specimens were monitored using ACM sensors. The sensor outputs were recorded during the exposure tests.


2013 ◽  
Vol 60 (2) ◽  
pp. 100-105 ◽  
Author(s):  
Jiayuan Hu ◽  
Shun‐an Cao ◽  
Jianli Xie

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