GB778943A - Improvements in or relating to the protection of aluminium and its alloys against corrosion - Google Patents

Improvements in or relating to the protection of aluminium and its alloys against corrosion

Info

Publication number
GB778943A
GB778943A GB468054A GB468054A GB778943A GB 778943 A GB778943 A GB 778943A GB 468054 A GB468054 A GB 468054A GB 468054 A GB468054 A GB 468054A GB 778943 A GB778943 A GB 778943A
Authority
GB
United Kingdom
Prior art keywords
adsorption
polar
water
substance
sensitizer
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
GB468054A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB468054A priority Critical patent/GB778943A/en
Priority to ES0220167A priority patent/ES220167A1/en
Priority to FR1119880D priority patent/FR1119880A/en
Publication of GB778943A publication Critical patent/GB778943A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Nanotechnology (AREA)
  • Composite Materials (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A method of preventing or minimizing corrosion or corrosion and rubbing on aluminium or aluminium alloy surfaces comprises applying to the surface, either simultaneously or separately, substances that together form a penetrated monolayer by sensitized adsorption A penetrated monolayer is a monomolecular layer of a weakly polar amphipathic substance which has adsorbed a more strongly polar amphipathic substance. Sensitized adsorption is the adsorption of such a strongly polar substance (the sensitizer) by a metal surface to facilitate the subsequent adsorption by the surface of the weakly polar substance. An amphipathic substance is one whose molecules contain a polar portion and a non-polar portion. The surfaces, which may be anodized, are treated with the sensitizer, examples of which are aryl or alkyl sulphates, sulphonates, phosphates, or phosphonates or salts of fatty acids, and the second compound is an alkyl or aryl alcohol, or cholesterol. The compounds may be applied to the surface simultaneously as an oil-water emulsion, e.g. sodium dodecyl sulphate in water and cholesterol in B.P. paraffin, or separately by successive treatments e.g. with a solution of lanoline in white spirit of B.P. paraffin and sodium alkyl sulphonate in water. The surface may be stoved at 120 DEG F. between the lanoline and sulphonate treatments. Various combinations of pairs of the above compounds are described with various degrees of heating between 74 DEG F. and 80 DEG C. A specific sensitizer mentioned is sodium lauryl sulphate in water.
GB468054A 1954-02-17 1954-02-17 Improvements in or relating to the protection of aluminium and its alloys against corrosion Expired GB778943A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB468054A GB778943A (en) 1954-02-17 1954-02-17 Improvements in or relating to the protection of aluminium and its alloys against corrosion
ES0220167A ES220167A1 (en) 1954-02-17 1955-02-16 Improvements in or relating to the protection of aluminium and its alloys against corrosion
FR1119880D FR1119880A (en) 1954-02-17 1955-02-16 Improvements made to the protection of aluminum and its alloys against corrosion by erosion or attrition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB468054A GB778943A (en) 1954-02-17 1954-02-17 Improvements in or relating to the protection of aluminium and its alloys against corrosion

Publications (1)

Publication Number Publication Date
GB778943A true GB778943A (en) 1957-07-17

Family

ID=9781756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB468054A Expired GB778943A (en) 1954-02-17 1954-02-17 Improvements in or relating to the protection of aluminium and its alloys against corrosion

Country Status (3)

Country Link
ES (1) ES220167A1 (en)
FR (1) FR1119880A (en)
GB (1) GB778943A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111398001A (en) * 2020-04-01 2020-07-10 中国船舶重工集团公司第七二五研究所 Method for preparing corrosion pit on metal material sample

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1175524B (en) * 1957-03-26 1964-08-06 Pechiney Cie Des Prod Chim Et Solutions and processes for coating metal surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111398001A (en) * 2020-04-01 2020-07-10 中国船舶重工集团公司第七二五研究所 Method for preparing corrosion pit on metal material sample

Also Published As

Publication number Publication date
ES220167A1 (en) 1955-12-16
FR1119880A (en) 1956-06-26

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