Effect of the Specific Resistance of Water on Corrosion Characteristics of STS 304 for Gas Boiler

가스보일러용 STS 304의 부식특성에 미치는 용수의 비저항의 영향

  • Received : 2006.10.26
  • Accepted : 2007.04.28
  • Published : 2007.12.31

Abstract

This paper was studied on the effect of the specific resistance of water on corrosion characteristics of STS 304 for gas boiler. The electrochemical polarization test of STS 304 for gas boiler was carried out. And the polarization resistance, uniform corrosion, corrosion behavior by impressed potential and corrosion sensitivity of STS 304 with specific resistance were considered. The main results are as following: 1) With being low the specific resistance of water, the polarization resistance and corrosion potential of STS 304 decreases, while corrosion current density increases. 2) Under constant impressed potential, the corrosion sensitivity of STS 304 is large with being low the specific resistance due to synergy effect of Cl ion.

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