GB1064485A - Corrosion rate measuring apparatus and method - Google Patents
Corrosion rate measuring apparatus and methodInfo
- Publication number
- GB1064485A GB1064485A GB1055364A GB1055364A GB1064485A GB 1064485 A GB1064485 A GB 1064485A GB 1055364 A GB1055364 A GB 1055364A GB 1055364 A GB1055364 A GB 1055364A GB 1064485 A GB1064485 A GB 1064485A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- environment
- corrosion rate
- electrode
- rate
- 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.)
- Expired
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
1, 064,485. Electro physical measurement control &c. PURE OIL CO. March 12, 1964, No.10553/64. Heading G1N . A method of determining the rate of corrosion of a material in an environment comprises disposing at least two pairs of differently spaced electrodes at least one of each pair of which comprises the material in the corrosive environment, supplying selectively a D. C. potential of known value and less than about 0.03 volts to one of the pairs of electrodes, measuring the I. R. drop across a resistor in series with the path between the electrodes, and using the supplied potential and I.R. drop to determine the corrosion rate. Electrode arrangements described as suitable and claimed independently comprise two ribbon like electrodes (244) (246), Fig. 14 (not shown), of the material to be tested, mounted on a base (220) and pleated at least once (248), (250); and a plurality of parallel plate or rod electrodes (10), (12), (14), (16) Fig. 1 (not shown) which are connectable to the measuring circuit through selector switches 26, 28 so that tests may be carried out for various plate spacings to eliminate electrolyte conductivity. Further electrode arrangements described include a pair of U-shaped tubular electrodes Fig. 16 (not shown) through which a temperature regulating fluid is caused to flow; a stack of ribbon like strips insulated one from the other and at the two ends by for example a polystyrene resin or polytetrafluoroethylene, the edges only of the ribbons being exposed to the environment, Figs. 16, 17 (not shown); a rod-electrode in combination with an electrode stressed by bending Fig. 13 (not shown), in which only the stressed part is exposed to the environment, and a dual arrangement Fig. 18 (not shown) of two compartments through which the flow of corrosive fluid may be controlled in accordance with its conductivity. In the measuring circuit Fig. 3 (not shown) after calibration with a variable 200 ohm resistor (58) the cell current is indicated by the position of a potentiometer wiper (69). A number of simple alternative measuring and recording circuits are described, and change over switches are provided for reversing the direction of the current. If the cell electrodes are dissimilar then the corrosion rate is indicated as the average rate for the two materials but if one of the metals is less active in the electromotive series e. g. steel in a cell comprising electrodes of steel and zinc, then the corrosion rate of the less active material can be determined.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1055364A GB1064485A (en) | 1964-03-12 | 1964-03-12 | Corrosion rate measuring apparatus and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1055364A GB1064485A (en) | 1964-03-12 | 1964-03-12 | Corrosion rate measuring apparatus and method |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1064485A true GB1064485A (en) | 1967-04-05 |
Family
ID=9969967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1055364A Expired GB1064485A (en) | 1964-03-12 | 1964-03-12 | Corrosion rate measuring apparatus and method |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1064485A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2118309A (en) * | 1982-04-13 | 1983-10-26 | Univ Manchester | Apparatus for monitoring loss of metal by corrosion |
GB2180069A (en) * | 1985-09-04 | 1987-03-18 | Corrocean As | Probe for corrosion monitoring |
GB2180067A (en) * | 1985-09-04 | 1987-03-18 | Corrocean As | Probe for corrosion testing |
AT502876B1 (en) * | 2005-10-31 | 2008-06-15 | Ac2T Res Gmbh | CORROSION SENSOR |
WO2020087144A1 (en) * | 2018-10-29 | 2020-05-07 | Vidya Corrosão Engenharia Ltda | Structural arrangement for a sensor/probe for measuring corrosion rate by using electrical resistance |
CN112930474A (en) * | 2019-01-18 | 2021-06-08 | 波音公司 | System and method for measuring galvanic corrosion potential |
-
1964
- 1964-03-12 GB GB1055364A patent/GB1064485A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2118309A (en) * | 1982-04-13 | 1983-10-26 | Univ Manchester | Apparatus for monitoring loss of metal by corrosion |
GB2180069A (en) * | 1985-09-04 | 1987-03-18 | Corrocean As | Probe for corrosion monitoring |
GB2180067A (en) * | 1985-09-04 | 1987-03-18 | Corrocean As | Probe for corrosion testing |
AT502876B1 (en) * | 2005-10-31 | 2008-06-15 | Ac2T Res Gmbh | CORROSION SENSOR |
WO2020087144A1 (en) * | 2018-10-29 | 2020-05-07 | Vidya Corrosão Engenharia Ltda | Structural arrangement for a sensor/probe for measuring corrosion rate by using electrical resistance |
CN112930474A (en) * | 2019-01-18 | 2021-06-08 | 波音公司 | System and method for measuring galvanic corrosion potential |
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