GB721821A - Improvements in the manufacture of aluminium alloys - Google Patents

Improvements in the manufacture of aluminium alloys

Info

Publication number
GB721821A
GB721821A GB2346548A GB2346548A GB721821A GB 721821 A GB721821 A GB 721821A GB 2346548 A GB2346548 A GB 2346548A GB 2346548 A GB2346548 A GB 2346548A GB 721821 A GB721821 A GB 721821A
Authority
GB
United Kingdom
Prior art keywords
per cent
aluminium
pressing
carbides
alloys
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
GB2346548A
Inventor
Charles Eric Ransley
Neil Fraser Macdonald
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.)
British Aluminum Co Ltd
Original Assignee
British Aluminum Co Ltd
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 British Aluminum Co Ltd filed Critical British Aluminum Co Ltd
Priority to GB2346548A priority Critical patent/GB721821A/en
Publication of GB721821A publication Critical patent/GB721821A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0068—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only nitrides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

An aluminium alloy is produced by pressing and then sintering a powdered mixture of at least 85 per cent by volume of aluminium or an aluminium alloy and at least 3 per cent by volume of a carbide or nitride of titanium or zirconium, the particles of the latter having been pre-treated to ensure wetting thereof by the aluminium or aluminium alloy. Pressing may be effected with or without heat or hot pressing may follow cold pressing; sintering may be followed by forging. The carbide or nitride may be pre-coated with nickel or cobalt by milling, or with nickel by treatment with aqueous nickel chloride and heating in hydrogen at 300-400 DEG C. to reduce the salt, the temperature being then raised to 1000 DEG C. Alternatively, the carbides may be subjected to surface decarbonization. In examples, aluminium alloys comprising (a) Ni 5 per cent, TiC 10 per cent; and (b) Zn 3.8 per cent, Mg 2.1 per cent, Cu 1.3 per cent, Co 0.5 per cent and TiC 15.0 per cent, are formed; the latter may be solution treated for 1/2 hour at 465 DEG C. followed by ageing for 16 hours at 135 DEG C.; in the production of this alloy, alloys comprising (i) Zn 45 per cent, Mg 25 per cent, Al 30 per cent; and (ii) Cu 50 per cent, Al 50 per cent, are used. According to the first Provisional Specification, instead of carbides and nitrides of Ti and Zn, metallic Ni, Mn, Co and W, carbides and nitrides of Ta and W, and oxides may be used. Alloys containing (a) Ni 20 per cent, and (b) Ni 20 per cent, Mg 6 per cent are referred to.
GB2346548A 1948-09-06 1948-09-06 Improvements in the manufacture of aluminium alloys Expired GB721821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2346548A GB721821A (en) 1948-09-06 1948-09-06 Improvements in the manufacture of aluminium alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2346548A GB721821A (en) 1948-09-06 1948-09-06 Improvements in the manufacture of aluminium alloys

Publications (1)

Publication Number Publication Date
GB721821A true GB721821A (en) 1955-01-12

Family

ID=10196062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2346548A Expired GB721821A (en) 1948-09-06 1948-09-06 Improvements in the manufacture of aluminium alloys

Country Status (1)

Country Link
GB (1) GB721821A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213113A1 (en) * 1985-07-25 1987-03-04 Miba Sintermetall Aktiengesellschaft Method of producing sintered bodies from an aluminium sinter mixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213113A1 (en) * 1985-07-25 1987-03-04 Miba Sintermetall Aktiengesellschaft Method of producing sintered bodies from an aluminium sinter mixture

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