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 device

Info

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
Application number
JP15004378A
Other languages
Japanese (ja)
Other versions
JPS6133380B2 (en
Inventor
Takeshi Kuwabara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15004378A priority Critical patent/JPS5576936A/en
Publication of JPS5576936A publication Critical patent/JPS5576936A/en
Publication of JPS6133380B2 publication Critical patent/JPS6133380B2/ja
Granted legal-status Critical Current

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
JP15004378A 1978-12-06 1978-12-06 Electrochemical evaluation method of local susceptibility to corrosion of metallic material surface and its device Granted JPS5576936A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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