GB1430214A - Measurement of corrosion - Google Patents

Measurement of corrosion

Info

Publication number
GB1430214A
GB1430214A GB3042473A GB3042473A GB1430214A GB 1430214 A GB1430214 A GB 1430214A GB 3042473 A GB3042473 A GB 3042473A GB 3042473 A GB3042473 A GB 3042473A GB 1430214 A GB1430214 A GB 1430214A
Authority
GB
United Kingdom
Prior art keywords
electrode
corrosion
test piece
metal
cell
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
Application number
GB3042473A
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Priority to GB3042473A priority Critical patent/GB1430214A/en
Publication of GB1430214A publication Critical patent/GB1430214A/en
Expired 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

1430214 Measuring corrosion COMPAGNIE GENERALE D'ELECTRICITE 10 July 1973 30424/73 Heading G1N Corrosion of a metal test piece by an aqueous solution is determined by immersing an electrode in the solution to form an electro-chemical cell with the test piece; measuring the e.m.f. E of the cell, the short circuit current ice supplied and the electrolyte resistance Re 1 between the test piece and electrode; deducing the electrode polarization resistance R pol from R pol = (E/i cc )-Rel; and determining the maximum value of the intensity of the current supplied from i max = Eo/R pol which current represents the rate of corrosion of the metal test piece by the electrolyte. The current, voltage and resistance are measured using a milliameter, voltmeter and Wheatstone bridge. Probe constructions; one suitable for measuring the corrosion of a metal wall comprises a casing having disposed therein a metal planar electrode to one surface of which air or oxygen is supplied and the opposite surface of which is arranged in spaced parallel relationship with the wall. In another arrangement a corrosion cell for immersing in a flow of liquid includes a housing having the electrode mounted in spaced parallel relationship with a piece of metal to be tested. Interchangeable wedges are provided for varying the distance between the electrode and test object. The cell may form part of a liquid conduit in which case the electrode is cylindrical and the test piece is positioned along the axis of the tube. The electrode may be Ag/AgO or Hg/Hg Cl.
GB3042473A 1973-07-10 1973-07-10 Measurement of corrosion Expired GB1430214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3042473A GB1430214A (en) 1973-07-10 1973-07-10 Measurement of corrosion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3042473A GB1430214A (en) 1973-07-10 1973-07-10 Measurement of corrosion

Publications (1)

Publication Number Publication Date
GB1430214A true GB1430214A (en) 1976-03-31

Family

ID=10307479

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3042473A Expired GB1430214A (en) 1973-07-10 1973-07-10 Measurement of corrosion

Country Status (1)

Country Link
GB (1) GB1430214A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132352A (en) * 1982-12-17 1984-07-04 British Gas Corp Corrosion detection
US4489277A (en) * 1982-01-04 1984-12-18 Shell Oil Company Cathodic protection monitoring system
US4703255A (en) * 1985-09-04 1987-10-27 Roe Strommen Probe for corrosion testing
GB2362958A (en) * 2000-06-01 2001-12-05 Lattice Intellectual Property Corrosion inhibitor function check method and apparatus
CN100371700C (en) * 2005-01-27 2008-02-27 湖南大学 Organic paint coating anticorrosion performance testing method
CN103630487A (en) * 2012-08-27 2014-03-12 中国科学院金属研究所 Accelerated corrosion test device for nonferrous metal soil
CN104020099A (en) * 2014-05-27 2014-09-03 中国科学院金属研究所 Periodic soaking accelerated corrosion test system for metal material and metal protective coating and application thereof
CN110274993A (en) * 2019-06-18 2019-09-24 中国石油天然气股份有限公司 A kind of online corrosion evaluating device
CN114324542A (en) * 2021-12-03 2022-04-12 山东核电有限公司 Intermittent immersion rotary corrosion experimental device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489277A (en) * 1982-01-04 1984-12-18 Shell Oil Company Cathodic protection monitoring system
GB2132352A (en) * 1982-12-17 1984-07-04 British Gas Corp Corrosion detection
US4703255A (en) * 1985-09-04 1987-10-27 Roe Strommen Probe for corrosion testing
GB2362958A (en) * 2000-06-01 2001-12-05 Lattice Intellectual Property Corrosion inhibitor function check method and apparatus
CN100371700C (en) * 2005-01-27 2008-02-27 湖南大学 Organic paint coating anticorrosion performance testing method
CN103630487A (en) * 2012-08-27 2014-03-12 中国科学院金属研究所 Accelerated corrosion test device for nonferrous metal soil
CN104020099A (en) * 2014-05-27 2014-09-03 中国科学院金属研究所 Periodic soaking accelerated corrosion test system for metal material and metal protective coating and application thereof
CN104020099B (en) * 2014-05-27 2016-06-01 中国科学院金属研究所 The cycle of metal and metal protection coating soaks accelerated corrosion test system and application
CN110274993A (en) * 2019-06-18 2019-09-24 中国石油天然气股份有限公司 A kind of online corrosion evaluating device
CN110274993B (en) * 2019-06-18 2021-11-02 中国石油天然气股份有限公司 Online corrosion evaluation device
CN114324542A (en) * 2021-12-03 2022-04-12 山东核电有限公司 Intermittent immersion rotary corrosion experimental device

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees