GB1396216A - Surface hardening of aluminum alloys - Google Patents

Surface hardening of aluminum alloys

Info

Publication number
GB1396216A
GB1396216A GB2103573A GB2103573A GB1396216A GB 1396216 A GB1396216 A GB 1396216A GB 2103573 A GB2103573 A GB 2103573A GB 2103573 A GB2103573 A GB 2103573A GB 1396216 A GB1396216 A GB 1396216A
Authority
GB
United Kingdom
Prior art keywords
aluminium
hardening
surface hardening
sodium
bath
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
GB2103573A
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.)
Metal Leve SA Industria e Commercio
Original Assignee
Metal Leve SA Industria e Commercio
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 Metal Leve SA Industria e Commercio filed Critical Metal Leve SA Industria e Commercio
Publication of GB1396216A publication Critical patent/GB1396216A/en
Expired 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Coating With Molten Metal (AREA)

Abstract

1396216 Surface hardening of aluminium alloys METAL LEVE-SA-INDUSTRIA E COMERCIO 3 May 1973 [4 May 1972] 21035/73 Headings C7A and C7U The surface hardness of an aluminium alloy containing by weight:- 0À2 to 30% silicon 0À2 to 5À6% copper 0À2 to 6À0% nickel 0À2 to 5À0% magnesium and optionally up to 1À0% iron up to 0À2% titanium up to 1À5% manganese up to 2À0% zinc up to 0À7% chromium the balance being aluminium, is increased to levels between 250 kg/sq.mm and 1,400 kg/sq.mm (vickers) by treatment with a cyanide bath at 450‹ to 550‹C. The bath generally contains potassium or sodium cyanide together with boron oxide or a mixture of sodium hydroxide and sodium carbonate, preferred treatment times are 8 to 12 hours. It is stated that the hardening is caused by the formation of hard particle layers of elemental Si and/or Ni 3 Al and an outer layer of MgAl 2 O 4 .
GB2103573A 1972-05-04 1973-05-03 Surface hardening of aluminum alloys Expired GB1396216A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25012672A 1972-05-04 1972-05-04

Publications (1)

Publication Number Publication Date
GB1396216A true GB1396216A (en) 1975-06-04

Family

ID=22946394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2103573A Expired GB1396216A (en) 1972-05-04 1973-05-03 Surface hardening of aluminum alloys

Country Status (4)

Country Link
JP (1) JPS4954215A (en)
FR (1) FR2183220B1 (en)
GB (1) GB1396216A (en)
IT (1) IT1029525B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173817A (en) * 1985-04-15 1986-10-22 Brunswick Corp Hypereutectic aluminium silicon alloy
US4669019A (en) * 1980-08-30 1987-05-26 Sony Corporation Magnetic head drum assembly
EP2036993A1 (en) * 2006-06-29 2009-03-18 Hitachi Metals Precision, Ltd. Casting aluminum alloy, cast compressor impeller comprising the alloy, and process for producing the same
CN102492879A (en) * 2011-12-30 2012-06-13 西南铝业（集团）有限责任公司 Aluminum alloy thin-wall tube and preparation method
CN113005340A (en) * 2021-03-05 2021-06-22 四会市辉煌金属制品有限公司 High-performance low-cost die-casting aluminum alloy and smelting method thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548325B2 (en) * 1973-12-28 1979-04-14
JPS548326B2 (en) * 1974-03-13 1979-04-14
JPS6328840A (en) * 1986-07-21 1988-02-06 Ryobi Ltd Aluminum alloy for die casting having high toughness
JPH01180938A (en) * 1988-01-12 1989-07-18 Ryobi Ltd Wear-resistant aluminum alloy
CN103667814A (en) * 2013-11-25 2014-03-26 茹林宝 Aluminum alloy profile
CN108193094A (en) * 2018-01-22 2018-06-22 湖北大旗液压有限公司 Wear-resistant aluminium alloy material for gear pump floating side plate and preparation method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4669019A (en) * 1980-08-30 1987-05-26 Sony Corporation Magnetic head drum assembly
GB2173817A (en) * 1985-04-15 1986-10-22 Brunswick Corp Hypereutectic aluminium silicon alloy
EP2036993A1 (en) * 2006-06-29 2009-03-18 Hitachi Metals Precision, Ltd. Casting aluminum alloy, cast compressor impeller comprising the alloy, and process for producing the same
EP2036993A4 (en) * 2006-06-29 2011-01-26 Hitachi Metals Ltd Casting aluminum alloy, cast compressor impeller comprising the alloy, and process for producing the same
US8292589B2 (en) 2006-06-29 2012-10-23 Hitachi Metals Precision, Ltd. Casting aluminum alloy, cast compressor impeller comprising the alloy, and process for producing the same
CN102492879A (en) * 2011-12-30 2012-06-13 西南铝业（集团）有限责任公司 Aluminum alloy thin-wall tube and preparation method
CN102492879B (en) * 2011-12-30 2014-02-12 西南铝业（集团）有限责任公司 Preparation method of aluminum alloy thin-wall tube
CN113005340A (en) * 2021-03-05 2021-06-22 四会市辉煌金属制品有限公司 High-performance low-cost die-casting aluminum alloy and smelting method thereof

Also Published As

Publication number Publication date
IT1029525B (en) 1979-03-20
FR2183220B1 (en) 1976-05-07
FR2183220A1 (en) 1973-12-14
JPS4954215A (en) 1974-05-27
DE2322348B2 (en) 1975-07-17
DE2322348A1 (en) 1973-11-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee