Title:
METHOD FOR MEASURING RATE OF CORROSION OF METAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2016/002897
Kind Code:
A1
Abstract:
The purpose of the present invention is to more accurately calculate the rate of corrosion using the Tafel extrapolation method, on the basis of polarization characteristics obtained through polarization testing. The method for measuring the rate of corrosion of a metal element in an electrolyte according to the present invention has (A) a step for carrying out polarization testing, (B) a step for determining whether corrosion has occurred, (C) a step for calculating a cathode indicator slope (βctmp) and an anode indicator slope (βatmp), (D) a step for calculating a target polarization quantity (ηtrg) using a logarithmic value of the error ratio (d), (E) a step for calculating an apparent slope (βc') of cathode polarization, (F) a step for calculating an apparent equilibrium potential (Ec
o'), and (G) a step for calculating the corrosion current density (iint).
Inventors:
YAMAMOTO SATORU (JP)
TAKEKO KENSHIRO (JP)
TAKEKO KENSHIRO (JP)
Application Number:
PCT/JP2015/069176
Publication Date:
January 07, 2016
Filing Date:
July 02, 2015
Export Citation:
Assignee:
NIPPON CORROSION ENGINEERING CO LTD (JP)
International Classes:
G01N27/26
Foreign References:
| JPS63315941A | 1988-12-23 |
Other References:
KENSHIRO TAKEKO ET AL.: "Bunkyoku Kyokusen Sokutei ni yoru Concrete-chu Kozai no Fushoku Sokudo Sokutei Hoho no Kaihatsu", PROCEEDINGS OF THE JAPAN CONCRETE INSTITUTE, vol. 36, no. 1, 15 June 2014 (2014-06-15), pages 2092 - 2097
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
Patent business corporation きさ patent trademark office (JP)
Patent business corporation きさ patent trademark office (JP)
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