GB863051A - Thermal treatment of articles composed of an aluminum base alloy - Google Patents
Thermal treatment of articles composed of an aluminum base alloyInfo
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- 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
- C23C8/06—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 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.
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)
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 |
-
1958
- 1958-09-10 GB GB29005/58A patent/GB863051A/en not_active Expired
Cited By (5)
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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