JPS5461982A - Evaluation method of sensitization by electrochemical techniques of steel materials - Google Patents
Evaluation method of sensitization by electrochemical techniques of steel materialsInfo
- Publication number
- JPS5461982A JPS5461982A JP12907877A JP12907877A JPS5461982A JP S5461982 A JPS5461982 A JP S5461982A JP 12907877 A JP12907877 A JP 12907877A JP 12907877 A JP12907877 A JP 12907877A JP S5461982 A JPS5461982 A JP S5461982A
- Authority
- JP
- Japan
- Prior art keywords
- sensitization
- electrode
- current
- bath
- contained
- 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.)
- Pending
Links
Abstract
PURPOSE: To quantitatively evaluate the pitting potentials and passivation holding currents in polarization curves as indices for the degree of sensitization of materials being one of the causes for stress corrosion cracking by using a specific electrolyte.
CONSTITUTION: Glass made electrolytic baths 1A, 1B communicate with each other. A material 2 such as stainless steel or other and a saturated calomel standard electrode 3 are contained in the bath 1A and a Pt counter electrode 4 is contained in the bath 1B, and the INH2SO4+0.5MNaCl solution 5 having been removed of dissolved O2 is sealed therein. A voltage is supplied between the material 2 and counter electrode 4 from a power source E and the potential defferences between the electrode 3 and sample 2 are recorded in a voltmeter 6. At the same time the current values at that time are read with an ammeter 7 and an anode polarization curve is obtained. The minumum values of the current density on said curve as passivation hoding current imin and the potentials at the points where the current density infinitely diverges as pitting potential EPIT are plotted as parameters of quantitatively indicating the dependency of heat treatment conditions.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12907877A JPS5461982A (en) | 1977-10-27 | 1977-10-27 | Evaluation method of sensitization by electrochemical techniques of steel materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12907877A JPS5461982A (en) | 1977-10-27 | 1977-10-27 | Evaluation method of sensitization by electrochemical techniques of steel materials |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5461982A true JPS5461982A (en) | 1979-05-18 |
Family
ID=15000521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12907877A Pending JPS5461982A (en) | 1977-10-27 | 1977-10-27 | Evaluation method of sensitization by electrochemical techniques of steel materials |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5461982A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100374845C (en) * | 2005-09-01 | 2008-03-12 | 复旦大学 | Method for evaluating pitting resistance performance of material |
CN105203625A (en) * | 2015-09-11 | 2015-12-30 | 中国特种设备检测研究院 | Magnetic evaluation method for residual stress relieving effect in postweld heat treatment |
CN108344679A (en) * | 2018-01-18 | 2018-07-31 | 北京科技大学 | A method of characterization cast austenitic-ferritic stainless steel pitting corrosion |
CN109187327A (en) * | 2018-09-25 | 2019-01-11 | 江苏师范大学 | Metal stresses corrosion process median surface microcell pH value Monitoring on Dynamic Change device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49115589A (en) * | 1973-03-07 | 1974-11-05 | ||
JPS52109804A (en) * | 1976-01-09 | 1977-09-14 | Post Office | Data transmission system |
-
1977
- 1977-10-27 JP JP12907877A patent/JPS5461982A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49115589A (en) * | 1973-03-07 | 1974-11-05 | ||
JPS52109804A (en) * | 1976-01-09 | 1977-09-14 | Post Office | Data transmission system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100374845C (en) * | 2005-09-01 | 2008-03-12 | 复旦大学 | Method for evaluating pitting resistance performance of material |
CN105203625A (en) * | 2015-09-11 | 2015-12-30 | 中国特种设备检测研究院 | Magnetic evaluation method for residual stress relieving effect in postweld heat treatment |
CN108344679A (en) * | 2018-01-18 | 2018-07-31 | 北京科技大学 | A method of characterization cast austenitic-ferritic stainless steel pitting corrosion |
CN109187327A (en) * | 2018-09-25 | 2019-01-11 | 江苏师范大学 | Metal stresses corrosion process median surface microcell pH value Monitoring on Dynamic Change device |
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