JPS5576936A - Electrochemical evaluation method of local susceptibility to corrosion of metallic material surface and its device - Google Patents
Electrochemical evaluation method of local susceptibility to corrosion of metallic material surface and its deviceInfo
- Publication number
- JPS5576936A JPS5576936A JP15004378A JP15004378A JPS5576936A JP S5576936 A JPS5576936 A JP S5576936A JP 15004378 A JP15004378 A JP 15004378A JP 15004378 A JP15004378 A JP 15004378A JP S5576936 A JPS5576936 A JP S5576936A
- Authority
- JP
- Japan
- Prior art keywords
- metallic material
- electrode
- independently
- corrosion
- polarization curves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
PURPOSE: To measure local corrosiveness and the locations of corrosive points rapidly and accurately while a metallic material remains as it is in a non-destructive shape, by measuring polarization curves simultaneously and independently at a plurality of positions on a surface of the metallic material.
CONSTITUTION: Polarization curves are measured simultaneously and independently at a plurality of locations on a surface of a metallic material 16, such as, stainless steel, etc. with welding portions. An electrode for measuring corrosion is used which a large number of probe electrodes 14 are surrounded by means of a guard electrode 15 and both electrodes 14, 15 are mounted to the same end surface. For example, the electrode for measurement is employed which the probe electrodes 14 in platinum with 1mm diameters are arranged at intervals of 1mm and the circumference is enclosed by means of the guard electrode 15 in platinum. A mixed water solution of sulphuric acid and potassium thicocyanic acid is made use of as an electrolyte 7, polarization curves are measured simultaneously and independently about each probe electrode 14 by means of a potentio-stud 8 while employing a stainless steel plate with welding portions as a body to be tested 16, and the curves are recorded by means of a recorder 21.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15004378A JPS5576936A (en) | 1978-12-06 | 1978-12-06 | Electrochemical evaluation method of local susceptibility to corrosion of metallic material surface and its device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15004378A JPS5576936A (en) | 1978-12-06 | 1978-12-06 | Electrochemical evaluation method of local susceptibility to corrosion of metallic material surface and its device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5576936A true JPS5576936A (en) | 1980-06-10 |
JPS6133380B2 JPS6133380B2 (en) | 1986-08-01 |
Family
ID=15488246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15004378A Granted JPS5576936A (en) | 1978-12-06 | 1978-12-06 | Electrochemical evaluation method of local susceptibility to corrosion of metallic material surface and its device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5576936A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102400205A (en) * | 2010-09-19 | 2012-04-04 | 宝山钢铁股份有限公司 | Electrolyte solution used for rapid evaluation of groove corrosion performance |
-
1978
- 1978-12-06 JP JP15004378A patent/JPS5576936A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102400205A (en) * | 2010-09-19 | 2012-04-04 | 宝山钢铁股份有限公司 | Electrolyte solution used for rapid evaluation of groove corrosion performance |
Also Published As
Publication number | Publication date |
---|---|
JPS6133380B2 (en) | 1986-08-01 |
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