GB863051A - Thermal treatment of articles composed of an aluminum base alloy - Google Patents

Thermal treatment of articles composed of an aluminum base alloy

Info

Publication number
GB863051A
GB863051A GB29005/58A GB2900558A GB863051A GB 863051 A GB863051 A GB 863051A GB 29005/58 A GB29005/58 A GB 29005/58A GB 2900558 A GB2900558 A GB 2900558A GB 863051 A GB863051 A GB 863051A
Authority
GB
United Kingdom
Prior art keywords
boron trifluoride
thermal treatment
base alloy
aluminum base
present
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
GB29005/58A
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.)
Howmet Aerospace Inc
Original Assignee
Aluminum Company of America
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 Aluminum Company of America filed Critical Aluminum Company of America
Publication of GB863051A publication Critical patent/GB863051A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • 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
    • C23C8/00Solid 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
    • C23C8/06Solid 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 gases

Abstract

Aluminium base alloys containing 0.1-15% Mg are heated to 400-750 DEG F. but below the critical oxidation temperature for 1-45 minutes in an atmosphere containing at least 75 m. grms. boron trifluoride per cubic foot. The boron trifluoride may be added as a vapour or by means of a solid which releases boron trifluoride at the furnace temperature, e.g. ammonium fluoborate or calcium fluoborate. The atmosphere may contain air, nitrogen, helium argon or fuel gas and may be contaminated with SO2, HCl, NH4, CO, or CO2 and water vapour in amount between 1/4 and 45 grains per cu. ft. may be present. The treated article may be degassed at a temperature above 750 DEG F. and may be age hardened. The alloy may contain 0.1-12% Cu, 0.25-14% Si, 0.1-20% Zn and 0.1-3% Mn and a maximum of 3% of the following "hardeners" may be present: 0.05-0.5% Cr, 0.01-0.5% Ti, 0.25-2.5% Ni, 0.01-0.5% B, 0.002-2.0% B and 0.1-0.5% of one or more of Mo, Zr, Ta, Nb, and Co. Specification 494,274 and U.S.A. Specification 2,379,467 are referred to.
GB29005/58A 1957-09-18 1958-09-10 Thermal treatment of articles composed of an aluminum base alloy Expired GB863051A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US863051XA 1957-09-18 1957-09-18

Publications (1)

Publication Number Publication Date
GB863051A true GB863051A (en) 1961-03-15

Family

ID=22197684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29005/58A Expired GB863051A (en) 1957-09-18 1958-09-10 Thermal treatment of articles composed of an aluminum base alloy

Country Status (1)

Country Link
GB (1) GB863051A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1281781A1 (en) * 2001-07-30 2003-02-05 Alcoa Inc. Alloy composition for making blister-free aluminum forgings and parts made therefrom
EP3162910A1 (en) * 2015-10-28 2017-05-03 General Electric Company Method and apparatus for removing oxide from metallic substrate
CN106637266A (en) * 2015-10-28 2017-05-10 通用电气公司 Method and apparatus for removing oxides from metal substrate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1281781A1 (en) * 2001-07-30 2003-02-05 Alcoa Inc. Alloy composition for making blister-free aluminum forgings and parts made therefrom
EP3162910A1 (en) * 2015-10-28 2017-05-03 General Electric Company Method and apparatus for removing oxide from metallic substrate
CN106637267A (en) * 2015-10-28 2017-05-10 通用电气公司 Method and device for removing oxide from metal substrate
CN106637266A (en) * 2015-10-28 2017-05-10 通用电气公司 Method and apparatus for removing oxides from metal substrate
US9822456B2 (en) 2015-10-28 2017-11-21 General Electric Company Method and apparatus for removing oxide from metallic substrate

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