EP0097487A3 - Method of producing corrosion-resistant coatings on ferrous-base articles - Google Patents
Method of producing corrosion-resistant coatings on ferrous-base articles Download PDFInfo
- 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- Withdrawn
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.
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)
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)
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 |
-
1983
- 1983-06-15 EP EP83303464A patent/EP0097487A3/en not_active Withdrawn
- 1983-06-15 JP JP10595983A patent/JPS5920457A/en active Pending
- 1983-06-16 AU AU15859/83A patent/AU1585983A/en not_active Abandoned
- 1983-06-17 BR BR8303201A patent/BR8303201A/en unknown
Patent Citations (9)
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)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19841122 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19851202 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SWAN, JOSEPH DONALD Inventor name: LEONARD, RALPH WILLIAM |