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GB2297095A - Alloy - Google Patents

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Publication number
GB2297095A
GB2297095A GB9501144A GB9501144A GB2297095A GB 2297095 A GB2297095 A GB 2297095A GB 9501144 A GB9501144 A GB 9501144A GB 9501144 A GB9501144 A GB 9501144A GB 2297095 A GB2297095 A GB 2297095A
Authority
GB
United Kingdom
Prior art keywords
alloy
weight
nickel
boron
percentages
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.)
Granted
Application number
GB9501144A
Other versions
GB9501144D0 (en
GB2297095B (en
Inventor
Norman Allnatt
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.)
Wall Colmonoy Ltd
Original Assignee
Wall Colmonoy 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 Wall Colmonoy Ltd filed Critical Wall Colmonoy Ltd
Priority to GB9501144A priority Critical patent/GB2297095B/en
Publication of GB9501144D0 publication Critical patent/GB9501144D0/en
Priority to DE1996100758 priority patent/DE19600758A1/en
Priority to SE9600145A priority patent/SE9600145L/en
Publication of GB2297095A publication Critical patent/GB2297095A/en
Application granted granted Critical
Publication of GB2297095B publication Critical patent/GB2297095B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • C22C19/03Alloys based on nickel or cobalt based on nickel
    • C22C19/05Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/058Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24Selection of soldering or welding materials proper
    • B23K35/30Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3033Ni as the principal constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/02Making non-ferrous alloys by melting
    • C22C1/03Making non-ferrous alloys by melting using master alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • C22C19/03Alloys based on nickel or cobalt based on nickel
    • C22C19/05Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/057Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Description

2297095 Allo The present invention relates to alloys, and in particular
nickel-boron alloys which can be used as a master alloy.
Nickel-boron containing up to 17% boron is an important master alloy used in the manufacture of self-fluxing hardfacing and high brazing temperature nickel and cobalt base alloys.
Nickel-boron alloys are typically made by the reduction of boric acid or analogous materials in the presence of fine essentially pure nickel powder using a carbon electrode.
The resulting master alloy is made up of nickel and boron with very low levels of other elements. A typical analysis is as follows (in percentages by weight) B re Si Min 15 1.3 0.25 Max 18 2.0 0.50 c A1 0.03 0.02 0.15 0.20 Such purity is not of itself essential in the manufacture of the nickel and cobalt alloys self fluxing alloys, because the latter are themselves much more widely alloyed.
Accordingly, it is the purpose of the present invention to provide nickelboron alloys which can be made from recycled material, and therefore at lower cost, which contain further elements, which themselves contribute to the properties of the final alloy.
A nickel-boron based alloy according to the invention contains, in weight percentages, boron 12 to 20%, iron 0.2 to 2%, silicon 0.7 to 5.0%, carbon 0.1 to 3.0%, chromium 0.0 to 15.0%, cobalt 0.0 to 3.0%, molybdenum 0.0 to 3.0%, phosphorus 0.0 to 2.0%, aluminium 0.0 to 0.2% the balance being nickel, incidental ingredients and impurities. It is preferred that the alloy according to the invention contains greater than 50% by weight of nickel.
A typical analysis of such an alloy, for use as a master alloy is (in percentages by weight):
B re Si Min 12 0.2 0.7 Max 20 2.0 5.0 Another typical analysis i B Cr Fe Si 12 5.0 0.5 0.8 15.0 5.0 5.0 Another typical analysis B Cr Fe Si 12 0.0 0.2 0.8 5.0 2.0 2.0 Min Max Min Max c 0.1 2.0 c 0.1 3.0 is:
Ni Balance CO wi 0.0 3.0 Balance c MO p Ni 0.1 0.0 0.0 1.0 3.0 2.0 Balance The alloys according to the invention may contain aluminium, typically in an amount of 0.04 to 0.20% by weight.
The high boron more highly alloyed master alloys according to the invention offer the important advantage of being made from arisings of self fluxing alloys available for recycling and often at lower cost and requiring less energy than pure nickel in the process of melting the high boron containing master alloy. They also permit an easier alloying of certain elements (such as carbon particles or phosphorus) into the ultimate alloy, which can be time consuming.
1

Claims (3)

CLAIMS:
1. A nickel-boron based alloy which contains, in weight percentages, boron 12 to 20%, iron 0.
2 to 2%, silicon 0.7 to 5.0%, carbon 0.1 to 3.0%, chromium 0.0 to 15.0%, cobalt 0. 0 to 3. 0%, molybdenum 0. 0 to 3. 0%, phosphorus 0. 0 to 2.0%, aluminium 0.0 to 0.2% the balance being nickel, incidental ingredients and impurities.
An alloy according to claim 1 which contains greater than 50% by weight of nickel.
3. An alloy according to claim 1 or 2, which contains aluminium in an amount of 0.04 to 0.20% by weight.
An alloy having the following composition (in percentages by weight):
B Fe Si C Ni Min 12 0.2 0.7 0.1 Max 20 2.0 5.0 2.0 Balance 5. An alloy having the following composition (in percentages by weight):
B Cr Fe Min 12 5.0 0.5 Max 20 15.0 5.0 si c Co Ni 0.8 0.1 0.0 5.0 3.0 3.0 Bal 6. An alloy having the following composition (in percentages by weight):
B Cr Fe Si C MO Min 12 0.0 0.2 0.8 0.1 0.0 Max 20 5.0 2.0 2.0 1.0 3.0 p Ni 0.0 2.0 Balance
GB9501144A 1995-01-20 1995-01-20 Alloy Expired - Fee Related GB2297095B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9501144A GB2297095B (en) 1995-01-20 1995-01-20 Alloy
DE1996100758 DE19600758A1 (en) 1995-01-20 1996-01-11 alloy
SE9600145A SE9600145L (en) 1995-01-20 1996-01-16 Alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9501144A GB2297095B (en) 1995-01-20 1995-01-20 Alloy

Publications (3)

Publication Number Publication Date
GB9501144D0 GB9501144D0 (en) 1995-03-08
GB2297095A true GB2297095A (en) 1996-07-24
GB2297095B GB2297095B (en) 1998-07-08

Family

ID=10768324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9501144A Expired - Fee Related GB2297095B (en) 1995-01-20 1995-01-20 Alloy

Country Status (3)

Country Link
DE (1) DE19600758A1 (en)
GB (1) GB2297095B (en)
SE (1) SE9600145L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110408816B (en) * 2019-08-22 2021-07-30 承德天大钒业有限责任公司 A kind of nickel boron carbon master alloy and preparation method thereof

Also Published As

Publication number Publication date
GB9501144D0 (en) 1995-03-08
SE9600145L (en) 1996-07-21
DE19600758A1 (en) 1996-08-01
SE9600145D0 (en) 1996-01-16
GB2297095B (en) 1998-07-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010120