GB984602A - - Google Patents

Info

Publication number
GB984602A
GB984602A GB984602DA GB984602A GB 984602 A GB984602 A GB 984602A GB 984602D A GB984602D A GB 984602DA GB 984602 A GB984602 A GB 984602A
Authority
GB
United Kingdom
Prior art keywords
alloy
additions
tanker
disperses
sea
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
Publication date
Publication of GB984602A publication Critical patent/GB984602A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C18/00—Alloys based on zinc
    • 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
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/12—Electrodes characterised by the material
    • C23F13/14—Material for sacrificial anodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

A sacrificial anode is made of a zinc-based alloy containing up to 5% total of one or more of Li, K, Mg, Ca, and Ba. The examples describe an alloy comprising: .Al.0.25-0.75% .Cd.0.05-0.2% .Si.less than 0.185% Zn+incidental impurities the remainder to which the alloy additions are made. These additions cause the evolution of hydrogen which disperses any oil films, e.g. in a tanker with sea-water ballast, and thus allows the protective process to continue unhindered.
GB984602D Expired GB984602A (en)

Publications (1)

Publication Number Publication Date
GB984602A true GB984602A (en) 1900-01-01

Family

ID=1754661

Family Applications (1)

Application Number Title Priority Date Filing Date
GB984602D Expired GB984602A (en)

Country Status (1)

Country Link
GB (1) GB984602A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377454A1 (en) * 1977-01-13 1978-08-11 Petrocokino Denis Sacrificial zinc alloy anode, for protection of steel in sea water - specifically contg. aluminium, magnesium, manganese and mercury
FR2519027A1 (en) * 1981-12-28 1983-07-01 Norzink As ZINC ALLOY FOR SACRIFIED ANODES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377454A1 (en) * 1977-01-13 1978-08-11 Petrocokino Denis Sacrificial zinc alloy anode, for protection of steel in sea water - specifically contg. aluminium, magnesium, manganese and mercury
FR2519027A1 (en) * 1981-12-28 1983-07-01 Norzink As ZINC ALLOY FOR SACRIFIED ANODES

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