GB737398A - Improvements in or relating to the manufacture of alloys - Google Patents

Improvements in or relating to the manufacture of alloys

Info

Publication number
GB737398A
GB737398A GB2676252A GB2676252A GB737398A GB 737398 A GB737398 A GB 737398A GB 2676252 A GB2676252 A GB 2676252A GB 2676252 A GB2676252 A GB 2676252A GB 737398 A GB737398 A GB 737398A
Authority
GB
United Kingdom
Prior art keywords
metal
melting point
solution
lower melting
refractory oxide
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
GB2676252A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB2676252A priority Critical patent/GB737398A/en
Publication of GB737398A publication Critical patent/GB737398A/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
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/04—Alloys based on tungsten or molybdenum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1026—Alloys containing non-metals starting from a solution or a suspension of (a) compound(s) of at least one of the alloy constituents

Landscapes

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

Abstract

Dense alloys are formed by mixing tungsten and/or molybdenum with a solution of a compound decomposable by heat to form refractory oxide and with a solution of a compound of a metal of lower melting point than, and limited solubility in, the main constituent, which compound is capable of being reduced to metal, heating the mixture in a reducing atmosphere to produce a dry mixture of powdered tuggsten and/or molybdenum, refractory oxide and the said metal, pressing the dry mixture to form a compact and sintering at a temperature above the melting point of the said metal. The refractory oxide forms 1-20 per cent of the alloy and the lower melting point metal not more than 10 per cent. The refractory oxide may be thorium oxide added as a solution of thorium nitrate and the lower melting metal may be nickel, e.g. in a proportion of 0.5-1 per cent, added as a solution of nickel chloride. Reduction may be carried out at 500 DEG C. in an atmosphere of town's gas, forming gas or hydrogen. Other refractory oxides may be used, such as oxides of alkaline earth metals, aluminium, cerium, titanium, zirconium or silicon. Other suitable lower melting point metals are cobalt, iron and platinum.
GB2676252A 1952-10-24 1952-10-24 Improvements in or relating to the manufacture of alloys Expired GB737398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2676252A GB737398A (en) 1952-10-24 1952-10-24 Improvements in or relating to the manufacture of alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2676252A GB737398A (en) 1952-10-24 1952-10-24 Improvements in or relating to the manufacture of alloys

Publications (1)

Publication Number Publication Date
GB737398A true GB737398A (en) 1955-09-28

Family

ID=10248795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2676252A Expired GB737398A (en) 1952-10-24 1952-10-24 Improvements in or relating to the manufacture of alloys

Country Status (1)

Country Link
GB (1) GB737398A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952903A (en) * 1957-11-12 1960-09-20 Washken Edward High temperature composition
DE1211404B (en) * 1957-03-13 1966-02-24 Morgan Crucible Co Process for the production of a starting material for highly heat-resistant objects
EP0290820A2 (en) * 1987-05-13 1988-11-17 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Process for preparing dispersion-hardened metal alloys

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211404B (en) * 1957-03-13 1966-02-24 Morgan Crucible Co Process for the production of a starting material for highly heat-resistant objects
US2952903A (en) * 1957-11-12 1960-09-20 Washken Edward High temperature composition
EP0290820A2 (en) * 1987-05-13 1988-11-17 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Process for preparing dispersion-hardened metal alloys
EP0290820A3 (en) * 1987-05-13 1990-03-21 Mtu Muenchen Gmbh Process for preparing dispersion-hardened metal alloys

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