JPS5728246A - Method and apparatus for measuring sensitivity of stainless steel - Google Patents

Method and apparatus for measuring sensitivity of stainless steel

Info

Publication number
JPS5728246A
JPS5728246A JP10331980A JP10331980A JPS5728246A JP S5728246 A JPS5728246 A JP S5728246A JP 10331980 A JP10331980 A JP 10331980A JP 10331980 A JP10331980 A JP 10331980A JP S5728246 A JPS5728246 A JP S5728246A
Authority
JP
Japan
Prior art keywords
polarization
current value
voltage
reverse sweep
anode
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
JP10331980A
Other languages
Japanese (ja)
Other versions
JPS6326337B2 (en
Inventor
Fumio Umemura
Yukiya Nakagawa
Teruaki Kawamoto
Masatsune Akashi
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.)
IHI Corp
Original Assignee
IHI Corp
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 IHI Corp filed Critical IHI Corp
Priority to JP10331980A priority Critical patent/JPS5728246A/en
Publication of JPS5728246A publication Critical patent/JPS5728246A/en
Publication of JPS6326337B2 publication Critical patent/JPS6326337B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

PURPOSE:To evaluate the sensitively of a stainless steel accurately by determining the ratio between the maximum current value in the anode polarization and the maximum current value in the reverse sweep polarization having the steel contacting an acid solution. CONSTITUTION:An automatic controller 1 handles the pretreatment of the surface of a stainless steeel 7, the setting of anode polarization starting voltage, the voltage application control and the current value measurement control in the anode polarization, the voltage application control and the current value measurement control in the reverse sweep polarization and the recording and calculation of meaurement data. Under the control of the automatic controller 1, the feeding of varied voltages to an electrolytic cell 6 and the measurement of the current value are performed with potentiostat and a voltage applying device 5. The device 5 comprises an anode polarization potential application means of applying a voltage positively to cause an anode polarization in the stainless steel 7, a reverse sweep polarization potential application means of applying a voltage negatively to cause a reverse sweep polarization therein and a current value measuring means. The ratio between the maximum current vlue in the anode polarization and the maximum current value in the reverse sweep polarization is recorded on a recording section 2 of the automatic controller 1.
JP10331980A 1980-07-28 1980-07-28 Method and apparatus for measuring sensitivity of stainless steel Granted JPS5728246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10331980A JPS5728246A (en) 1980-07-28 1980-07-28 Method and apparatus for measuring sensitivity of stainless steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10331980A JPS5728246A (en) 1980-07-28 1980-07-28 Method and apparatus for measuring sensitivity of stainless steel

Publications (2)

Publication Number Publication Date
JPS5728246A true JPS5728246A (en) 1982-02-15
JPS6326337B2 JPS6326337B2 (en) 1988-05-30

Family

ID=14350871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10331980A Granted JPS5728246A (en) 1980-07-28 1980-07-28 Method and apparatus for measuring sensitivity of stainless steel

Country Status (1)

Country Link
JP (1) JPS5728246A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59106058U (en) * 1983-01-07 1984-07-17 三菱重工業株式会社 Corrosion susceptibility measuring instrument
EP0591802A3 (en) * 1992-09-28 1994-06-08 Hitachi Ltd Method and apparatus for measuring degree of corrosion of metal materials
JP2015025736A (en) * 2013-07-26 2015-02-05 株式会社Ihi Device and method for measuring sensitization degree

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6326337A (en) * 1986-07-17 1988-02-03 Kobe Steel Ltd Steel sheet for motor having low magnetic permeability and effect of suppressing damping of eddy current by permanent magnet

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6326337A (en) * 1986-07-17 1988-02-03 Kobe Steel Ltd Steel sheet for motor having low magnetic permeability and effect of suppressing damping of eddy current by permanent magnet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59106058U (en) * 1983-01-07 1984-07-17 三菱重工業株式会社 Corrosion susceptibility measuring instrument
EP0591802A3 (en) * 1992-09-28 1994-06-08 Hitachi Ltd Method and apparatus for measuring degree of corrosion of metal materials
US5519330A (en) * 1992-09-28 1996-05-21 Hitachi, Ltd. Method and apparatus for measuring degree of corrosion of metal materials
JP2015025736A (en) * 2013-07-26 2015-02-05 株式会社Ihi Device and method for measuring sensitization degree

Also Published As

Publication number Publication date
JPS6326337B2 (en) 1988-05-30

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