GB1438842A - Liquid interface diffusion method of bonding parts made of titanium or titanium based alloy - Google Patents

Liquid interface diffusion method of bonding parts made of titanium or titanium based alloy

Info

Publication number
GB1438842A
GB1438842A GB3938573A GB3938573A GB1438842A GB 1438842 A GB1438842 A GB 1438842A GB 3938573 A GB3938573 A GB 3938573A GB 3938573 A GB3938573 A GB 3938573A GB 1438842 A GB1438842 A GB 1438842A
Authority
GB
United Kingdom
Prior art keywords
copper
nickel
titanium
diffusion
silver
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
GB3938573A
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.)
Rohr Inc
Original Assignee
Rohr Industries Inc
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 Rohr Industries Inc filed Critical Rohr Industries Inc
Priority to GB3938573A priority Critical patent/GB1438842A/en
Publication of GB1438842A publication Critical patent/GB1438842A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
    • B23K35/005—Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of a refractory metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Laminated Bodies (AREA)

Abstract

1438842 Brazing and welding ROHR INDUSTRIES Inc 21 Aug 1973 39385/73 Heading B3R In liquid interface diffusion bonding of articles of titanium or titanium based alloy an alloy of nickel and copper or layers of copper, nickel and copper in that order, or an alloy of nickel, copper and silver or layers of nickel, copper, silver, copper and nickel in that order are deposited as a diffusion bridge between the articles, the assembly is heated to form by solid state diffusion a eutectic comprising titanium, and the diffusion bridge, the eutectic melting and then as a result of further diffusion, solidifiying, the temperature is maintained to cause further solid phase diffusion and then the assembly is cooled. In an embodiment of bonding a sheet to a honeycomb core or a sheet to a sheet, the parts to be joined both being of titanium or titanium based alloy, an alloy of nickel, copper and silver or layers, viz nickel, copper, silver, copper and nickel, are deposited on at least one of the parts by, e.g. brushing, electroplating, vapour deposition or powder flame spray to provide 1-5 grams. /square foot of honeycomb core or 6-12 grams./square foot for sheet material the amounts of the metals are 38-45% nickel, 38-45% copper and 10-24% silver. The parts are assembled and in a vacuum are heated at 100‹F./min.to 1400‹ F., at 20‹ F./min to 1600‹ F. when a copper/silver mush forms at 2‹F/min. to 1700-1750‹ F. when the titanium, nickel and copper eutectic composition is reached by solid state diffusion and the eutectic melts. Continuing diffusion produces enriched titanium composition and solidification of the alloy. Further heating at 1700-1750‹ F. causes solid state diffusion at the interfaces and finally the assembly is cooled, the final cooling taking place in inert atmosphere. In an alternative embodiment the coated layers are of copper, nickel and copper (40-60% nickel 60-40% copper). In both embodiments the heating steps are the same. The assembly is held at 1700‹ F. for 90 minutes.
GB3938573A 1973-08-21 1973-08-21 Liquid interface diffusion method of bonding parts made of titanium or titanium based alloy Expired GB1438842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3938573A GB1438842A (en) 1973-08-21 1973-08-21 Liquid interface diffusion method of bonding parts made of titanium or titanium based alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3938573A GB1438842A (en) 1973-08-21 1973-08-21 Liquid interface diffusion method of bonding parts made of titanium or titanium based alloy

Publications (1)

Publication Number Publication Date
GB1438842A true GB1438842A (en) 1976-06-09

Family

ID=10409267

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3938573A Expired GB1438842A (en) 1973-08-21 1973-08-21 Liquid interface diffusion method of bonding parts made of titanium or titanium based alloy

Country Status (1)

Country Link
GB (1) GB1438842A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134832A (en) * 1983-02-15 1984-08-22 Messerschmitt Boelkow Blohm Method of etablishing a bond between titanium and an iron-nickel alloy
US4703159A (en) * 1980-07-02 1987-10-27 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method of manufacturing lightweight thermo-barrier material
US9120173B2 (en) 2011-07-19 2015-09-01 Rolls-Royce Plc Bonding of metal components
CN110823768A (en) * 2019-11-21 2020-02-21 中国核动力研究设计院 Device and method for researching interface compatibility of solid material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703159A (en) * 1980-07-02 1987-10-27 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method of manufacturing lightweight thermo-barrier material
GB2134832A (en) * 1983-02-15 1984-08-22 Messerschmitt Boelkow Blohm Method of etablishing a bond between titanium and an iron-nickel alloy
US9120173B2 (en) 2011-07-19 2015-09-01 Rolls-Royce Plc Bonding of metal components
CN110823768A (en) * 2019-11-21 2020-02-21 中国核动力研究设计院 Device and method for researching interface compatibility of solid material

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930820