EP0097487A3 - Method of producing corrosion-resistant coatings on ferrous-base articles - Google Patents

Method of producing corrosion-resistant coatings on ferrous-base articles Download PDF

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Publication number
EP0097487A3
EP0097487A3 EP83303464A EP83303464A EP0097487A3 EP 0097487 A3 EP0097487 A3 EP 0097487A3 EP 83303464 A EP83303464 A EP 83303464A EP 83303464 A EP83303464 A EP 83303464A EP 0097487 A3 EP0097487 A3 EP 0097487A3
Authority
EP
European Patent Office
Prior art keywords
aluminum
coating
corrosion
tendency
flaking
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.)
Withdrawn
Application number
EP83303464A
Other languages
German (de)
French (fr)
Other versions
EP0097487A2 (en
Inventor
Ralph William Leonard
Joseph Donald Swan
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.)
USS Engineers and Consultants Inc
Original Assignee
USS Engineers and Consultants Inc
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 USS Engineers and Consultants Inc filed Critical USS Engineers and Consultants Inc
Publication of EP0097487A2 publication Critical patent/EP0097487A2/en
Publication of EP0097487A3 publication Critical patent/EP0097487A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C23C—COATING 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/12—Aluminium or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)

Abstract

Hot-dip aluminum-zinc coatings having an aluminum content in excess of about 25% aluminum exhibit a tendency for corrosion flaking, that is, selective corrosion along the interface between the aluminum-zinc overlay and the under­ lying intermetallic layer. The tendency to such corrosion flaking increases with the aluminum content of the coating. Methods for minimizing this tendency by accelerated cooling of the molten coating as it emerges from the coating bath are ineffective for coatings containing greater than 72% alumi­ num. It has been found that the addition of 0.04 to 0.32% magnesium in hot-dip aluminum-zinc coating baths will substantially enhance the resistance of the coating to corrosion flaking.
EP83303464A 1982-06-17 1983-06-15 Method of producing corrosion-resistant coatings on ferrous-base articles Withdrawn EP0097487A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38930582A 1982-06-17 1982-06-17
US389305 1982-06-17

Publications (2)

Publication Number Publication Date
EP0097487A2 EP0097487A2 (en) 1984-01-04
EP0097487A3 true EP0097487A3 (en) 1984-09-12

Family

ID=23537706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83303464A Withdrawn EP0097487A3 (en) 1982-06-17 1983-06-15 Method of producing corrosion-resistant coatings on ferrous-base articles

Country Status (4)

Country Link
EP (1) EP0097487A3 (en)
JP (1) JPS5920457A (en)
AU (1) AU1585983A (en)
BR (1) BR8303201A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1184478B1 (en) * 1999-03-19 2010-05-19 Nippon Steel Corporation Surface treated steel product prepared by tin-based plating or aluminum-based plating
KR102153172B1 (en) * 2018-08-30 2020-09-07 주식회사 포스코 Aluminium-Zinc alloy plated steel sheet having excellent hot workabilities and corrosion resistance, and method for the same
CN114293038B (en) * 2021-12-27 2022-08-09 江苏中矿大正表面工程技术有限公司 Preparation method of corrosion-resistant cerium-containing Zn-Cu-Ti coating

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB736224A (en) * 1952-09-26 1955-09-07 Reynolds Metals Co Improvements in or relating to aluminum alloy coated steel
US3055771A (en) * 1958-05-26 1962-09-25 Kaiser Aluminium Chem Corp Method of coating a ferrous base with aluminum
US3058206A (en) * 1956-12-27 1962-10-16 Gen Electric Aluminum coating of ferrous metal and resulting product
FR1393962A (en) * 1961-04-13 1965-04-02 Pompey Acieries Process for preparing metal parts with a view to shaping them by extrusion or by similar processes, and finished or semi-finished articles thus obtained
US3180716A (en) * 1958-05-26 1965-04-27 Kaiser Aluminium Chem Corp Aluminum coated ferrous material
US3480465A (en) * 1966-03-30 1969-11-25 Shichiro Ohshima Method of chemically bonding aluminum or aluminum alloys to ferrous alloys
FR1589845A (en) * 1967-10-25 1970-04-06
DE1771125A1 (en) * 1968-04-05 1971-12-16 Kernforschung Gmbh Ges Fuer Process for the production of corrosion-protected ducts for nuclear fuels
EP0037143A1 (en) * 1980-03-25 1981-10-07 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Hot dip coating process

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB736224A (en) * 1952-09-26 1955-09-07 Reynolds Metals Co Improvements in or relating to aluminum alloy coated steel
US3058206A (en) * 1956-12-27 1962-10-16 Gen Electric Aluminum coating of ferrous metal and resulting product
US3055771A (en) * 1958-05-26 1962-09-25 Kaiser Aluminium Chem Corp Method of coating a ferrous base with aluminum
US3180716A (en) * 1958-05-26 1965-04-27 Kaiser Aluminium Chem Corp Aluminum coated ferrous material
FR1393962A (en) * 1961-04-13 1965-04-02 Pompey Acieries Process for preparing metal parts with a view to shaping them by extrusion or by similar processes, and finished or semi-finished articles thus obtained
US3480465A (en) * 1966-03-30 1969-11-25 Shichiro Ohshima Method of chemically bonding aluminum or aluminum alloys to ferrous alloys
FR1589845A (en) * 1967-10-25 1970-04-06
DE1771125A1 (en) * 1968-04-05 1971-12-16 Kernforschung Gmbh Ges Fuer Process for the production of corrosion-protected ducts for nuclear fuels
EP0037143A1 (en) * 1980-03-25 1981-10-07 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Hot dip coating process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 92, 1980, page 280, no. 26628k, Columbus, Ohio, US & IN - A - 146 317 (COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH [INDIA]) 28-04-1979 *

Also Published As

Publication number Publication date
BR8303201A (en) 1984-01-31
EP0097487A2 (en) 1984-01-04
AU1585983A (en) 1983-12-22
JPS5920457A (en) 1984-02-02

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Inventor name: SWAN, JOSEPH DONALD

Inventor name: LEONARD, RALPH WILLIAM