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GB892280A - Method of forming a protective coating on steel surfaces - Google Patents

Method of forming a protective coating on steel surfaces

Info

Publication number
GB892280A
GB892280A GB3910/59A GB391059A GB892280A GB 892280 A GB892280 A GB 892280A GB 3910/59 A GB3910/59 A GB 3910/59A GB 391059 A GB391059 A GB 391059A GB 892280 A GB892280 A GB 892280A
Authority
GB
United Kingdom
Prior art keywords
aluminium
steel
liquid metal
titanium
zirconium
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
GB3910/59A
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.)
US Atomic Energy Commission (AEC)
Original Assignee
US Atomic Energy Commission (AEC)
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 US Atomic Energy Commission (AEC) filed Critical US Atomic Energy Commission (AEC)
Publication of GB892280A publication Critical patent/GB892280A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23FNON-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
    • C23F11/00Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/02Pretreatment of the material to be coated
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/18Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions
    • C23C10/20Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions only one element being diffused
    • C23C10/22Metal melt containing the element to be diffused

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

The corrosion of a steel surface by a liquid metal (e.g bismuth) brought into contact therewith is inhibited by first treating the steel, which must contain carbon and nitrogen together with aluminium, titanium or zirconium, to form a stable nitride of aluminium &c. using at least 50% of the nitrogen in the steel, and thereafter contacting the steel surface with said liquid metal containing in solution at least 2 p.p.m. of aluminium, titanium or zirconium, at a temperature of 550 DEG -1100 DEG C. for a period sufficient to form a layer of aluminium, titanium or zirconium carbide on the surface. The nitride is formed by heating the steel at 550 DEG -1100 DEG C. Continuous protection of the surface may be provided by initially forming a carbide layer and thereafter maintaining a proportion of aluminium &c. in the liquid metal. The liquid metal may be a heat transfer medium in a nuclear reactor.
GB3910/59A 1958-04-03 1959-02-04 Method of forming a protective coating on steel surfaces Expired GB892280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US892280XA 1958-04-03 1958-04-03

Publications (1)

Publication Number Publication Date
GB892280A true GB892280A (en) 1962-03-21

Family

ID=22216436

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3910/59A Expired GB892280A (en) 1958-04-03 1959-02-04 Method of forming a protective coating on steel surfaces

Country Status (1)

Country Link
GB (1) GB892280A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507211A1 (en) * 1981-06-08 1982-12-10 Rausch John PROCESS FOR DIFFUSING AT LEAST ONE PREDETERMINED ELEMENT IN THE SURFACE OF AN IRON-BASED PIECE, AND METHOD OF MANUFACTURING SUCH A PIECE
CN103343516A (en) * 2013-07-08 2013-10-09 湖北交投四优钢科技有限公司 Aluminized highway guardrail and preparation method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507211A1 (en) * 1981-06-08 1982-12-10 Rausch John PROCESS FOR DIFFUSING AT LEAST ONE PREDETERMINED ELEMENT IN THE SURFACE OF AN IRON-BASED PIECE, AND METHOD OF MANUFACTURING SUCH A PIECE
CN103343516A (en) * 2013-07-08 2013-10-09 湖北交投四优钢科技有限公司 Aluminized highway guardrail and preparation method
CN103343516B (en) * 2013-07-08 2016-08-10 湖北交投四优钢科技有限公司 A kind of aluminising freeway guardrail and preparation method

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