US2137282A - Copper alloys - Google Patents

Copper alloys Download PDF

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Publication number
US2137282A
US2137282A US224498A US22449838A US2137282A US 2137282 A US2137282 A US 2137282A US 224498 A US224498 A US 224498A US 22449838 A US22449838 A US 22449838A US 2137282 A US2137282 A US 2137282A
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United States
Prior art keywords
alloy
rockwell
copper alloys
silicon
aging
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Expired - Lifetime
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US224498A
Inventor
Franz R Hensel
Earl I Larsen
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Duracell Inc USA
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PR Mallory and Co Inc
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Priority to US224498A priority Critical patent/US2137282A/en
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C9/00Alloys based on copper
    • C22C9/06Alloys based on copper with nickel or cobalt as the next major constituent

Definitions

  • This invention relates to copper alloys.
  • An object of the invention is to improve the physical, chemical and electrical, characteristics of such alloys.
  • the present invention comprises a combination of elements, methods of manufacture, and the product thereof, brought out and exemplified in the disclosure hereinafter set forth, the scope of iizhe invention being indicated in the appended cla m.
  • the alloys of the present invention may also contain small proportions, or even up to several percent, of zinc, tin, calcium, lithium, magnesium, phosphorus and silver. In some cases a part of the silicon may be replaced by beryllium.
  • the silicon combines-with the iron group metal or metals to form the silicide thereof and thereby imparts age-hardening characteristics to the alloy.
  • the alloys can be made according to standard alloying methods.
  • a preferred method for introducing the zirconium is to prepare a hardener alloy containing a high percentage of zirconium and then introduce a predetermined amount of this alloy into a copper melt, containing the other ingredients in the desired proportions.
  • the material may be heat treated by first quenching the alloy in the form of a billet 00 or sand casting, or any other form, from above amount of silicon has a composition as follows:
  • the materials are processed by rolling, extruding, drawing, forging or any other fabricating methods, we have found it desirable in many cases to quench the materials from the intermediate anneals, cold working same and applying an aging treatment afterwards. This cold working before aging hastens considerably the precipitation of the dispersed phase. In addition, a certain amount of cold work may be applied after aging in order to improve the surface finish of the wrought material.
  • An example of an alloy produced according to the present invention is:
  • the hardness of this alloy after aging reaches 50 Rockwell B and the conductivity 43%. If cold work is applied after quenching, the maximum hardness after reduction is '77 Rockwell B. The material responds to cold working after complete heat treatment and the hardness is increasedfrom50 Rockwell B to '76 Rockwell B.
  • a nickel-containing alloy showing a larger 4i Per cent Zirnnnium 0,80 Nickel 1.96 Silicon Q Copper balance 50 The maximum hardness after quenching from 950 C., and aging at 450 C., was close to Rockwell B, with an electrical conductivity of 30%. Cold working again increased the ultimate hardness that could be reached with this composition.
  • flne zrain structure which is highly desirable it the material is to be worked into sheets, strips, or tubing.
  • composition which has exceptional merits Per cent Nickel 15 to 30 Zflcmlum 0.05 to 5 Silicon 0.05 to 3 Copper balance While the present invention as to its objects and advantages has been described herein as carried out, in specific embodiments, it is not desired to order of 450 C.

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

Description

Patented Nov. 1938 UNITED" STATES- COPPER ALLOYS Franz R. Hensel and Earl I. Larsen, Indianapolis, Ind., assignors to P. R. Mallory & 00., Inc., Indianapolis, Ind., a corporation of Delaware No Drawing. Application August 12, 1938, Serial No. 224,498
1 Claim.
This invention relates to copper alloys.
This case is a continuation in part of our copcnding application. S. N. 164,032, filed September 15, 1937.
An object of the invention is to improve the physical, chemical and electrical, characteristics of such alloys.
Other objects of the invention will be apparent from the following description, taken in connection with the appended claim.
The present invention comprises a combination of elements, methods of manufacture, and the product thereof, brought out and exemplified in the disclosure hereinafter set forth, the scope of iizhe invention being indicated in the appended cla m.
While a preferred embodiment of the invention is described herein, it is contemplated that considerable variation may be made in the method of ing of iron, cobalt and nickel 0.1 to Zirc ni m 1 0.05 to 5 Silicon 0.05 to 3 Copper balance Where high electrical conductivities are desired,
it is preferred to keep the proportion of iron group metal within an upper limit of 5%.
The alloys of the present invention may also contain small proportions, or even up to several percent, of zinc, tin, calcium, lithium, magnesium, phosphorus and silver. In some cases a part of the silicon may be replaced by beryllium.
The silicon combines-with the iron group metal or metals to form the silicide thereof and thereby imparts age-hardening characteristics to the alloy. I
The addition of zinconium inthis type of alloy not only imparts additional age-hardening characteristics, but also produces a material of corrosion resistance, high strength at elevated temperatures and superior fatigue and impact properties.
60 The alloys can be made according to standard alloying methods. A preferred method for introducing the zirconium is to prepare a hardener alloy containing a high percentage of zirconium and then introduce a predetermined amount of this alloy into a copper melt, containing the other ingredients in the desired proportions.
After the alloy has been prepared according to such methods, the material may be heat treated by first quenching the alloy in the form of a billet 00 or sand casting, or any other form, from above amount of silicon has a composition as follows:
700 C. and subsequently aging at a temperature below 700 C. In certain cases, we have found it also advisable to use one heat treatment only. namely, the low temperature treatment, and eliminate the quenching treatment.
If the materials are processed by rolling, extruding, drawing, forging or any other fabricating methods, we have found it desirable in many cases to quench the materials from the intermediate anneals, cold working same and applying an aging treatment afterwards. This cold working before aging hastens considerably the precipitation of the dispersed phase. In addition, a certain amount of cold work may be applied after aging in order to improve the surface finish of the wrought material.
An example of an alloy produced according to the present invention is:
Per cent Zirconium 0.70 a Cobalt 2.31 Silicon 0.73 Copper balance After quenching this alloy from 950 C. and aging at 450 C., a Rockwell B hardness of 89 was 25 obtained, with 45% electrical conductivity. After cold working such an alloy, a Rockwell B hardness of 95 was reached.
The hardness of this alloy after aging reaches 50 Rockwell B and the conductivity 43%. If cold work is applied after quenching, the maximum hardness after reduction is '77 Rockwell B. The material responds to cold working after complete heat treatment and the hardness is increasedfrom50 Rockwell B to '76 Rockwell B.
A nickel-containing alloy showing a larger 4i Per cent Zirnnnium 0,80 Nickel 1.96 Silicon Q Copper balance 50 The maximum hardness after quenching from 950 C., and aging at 450 C., was close to Rockwell B, with an electrical conductivity of 30%. Cold working again increased the ultimate hardness that could be reached with this composition.
The addition of zirconium has further beneficial effects, in so far as it raises the annealing temperature, and atth 'e same time provides a very o for. condenser tubing is as follows:
flne zrain structure, which is highly desirable it the material is to be worked into sheets, strips, or tubing.
The composition which has exceptional merits Per cent Nickel 15 to 30 Zflcmlum 0.05 to 5 Silicon 0.05 to 3 Copper balance While the present invention as to its objects and advantages has been described herein as carried out, in specific embodiments, it is not desired to order of 450 C.
FRANZ R. HENSEL. EARL I. LARSEN.
US224498A 1938-08-12 1938-08-12 Copper alloys Expired - Lifetime US2137282A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810641A (en) * 1954-12-22 1957-10-22 Iii John S Roberts Precipitation hardenable copper, nickel, aluminum, zirconium alloys
US3162529A (en) * 1962-03-10 1964-12-22 Hitachi Ltd Age-hardening cu-p-ni alloy containing zr
US3201234A (en) * 1961-09-25 1965-08-17 Beryllium Corp Alloy and method of producing the same
US3253911A (en) * 1962-05-03 1966-05-31 Yorkshire Imp Metals Ltd Copper rich alloys
DE1278110B (en) * 1960-03-09 1968-09-19 Ver Deutsche Metallwerke Ag Use of a hardenable copper alloy for the production of semi-finished products with increased shape change capacity
US4366117A (en) * 1980-06-06 1982-12-28 Nikon Kogyo Kabushiki Kaisha Copper alloy for use as lead material for semiconductor devices
US4594221A (en) * 1985-04-26 1986-06-10 Olin Corporation Multipurpose copper alloys with moderate conductivity and high strength
US4728372A (en) * 1985-04-26 1988-03-01 Olin Corporation Multipurpose copper alloys and processing therefor with moderate conductivity and high strength
JPH0310036A (en) * 1989-09-28 1991-01-17 Nippon Mining Co Ltd Lead material for semiconductor apparatus
DE102005023308A1 (en) * 2005-05-13 2006-11-16 Federal-Mogul Wiesbaden Gmbh & Co. Kg Plain bearing composite material for plain bearing shells comprises a support layer made from steel, a bearing metal layer made from a copper alloy and a sliding layer applied to the bearing metal layer
WO2006120018A1 (en) 2005-05-13 2006-11-16 Federal-Mogul Wiesbaden Gmbh & Co. Kg Plain bearing composite material, use thereof and production methods therefor
DE102005023306B4 (en) * 2005-05-13 2007-04-05 Federal-Mogul Wiesbaden Gmbh & Co. Kg Slide bearing composite, use and manufacturing process
DE102005063324B4 (en) * 2005-05-13 2008-02-28 Federal-Mogul Wiesbaden Gmbh & Co. Kg Slide bearing composite, use and manufacturing process
US20090081471A1 (en) * 2005-05-13 2009-03-26 Maik Wilhelm Slide Bearing Composite Material, Use and Method of Production
US20100323218A1 (en) * 2005-05-13 2010-12-23 Maik Wilhelm Plain bearing composite material, use thereof and production methods therefor

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810641A (en) * 1954-12-22 1957-10-22 Iii John S Roberts Precipitation hardenable copper, nickel, aluminum, zirconium alloys
DE1278110B (en) * 1960-03-09 1968-09-19 Ver Deutsche Metallwerke Ag Use of a hardenable copper alloy for the production of semi-finished products with increased shape change capacity
DE1278110C2 (en) * 1960-03-09 1973-09-20 Ver Deutsche Metallwerke Ag USE OF A CURABLE COPPER ALLOY FOR THE MANUFACTURE OF SEMI-FINISHED PRODUCTS WITH INCREASED MOLDING CAPACITY
US3201234A (en) * 1961-09-25 1965-08-17 Beryllium Corp Alloy and method of producing the same
US3162529A (en) * 1962-03-10 1964-12-22 Hitachi Ltd Age-hardening cu-p-ni alloy containing zr
US3253911A (en) * 1962-05-03 1966-05-31 Yorkshire Imp Metals Ltd Copper rich alloys
US4366117A (en) * 1980-06-06 1982-12-28 Nikon Kogyo Kabushiki Kaisha Copper alloy for use as lead material for semiconductor devices
US4594221A (en) * 1985-04-26 1986-06-10 Olin Corporation Multipurpose copper alloys with moderate conductivity and high strength
US4728372A (en) * 1985-04-26 1988-03-01 Olin Corporation Multipurpose copper alloys and processing therefor with moderate conductivity and high strength
JPH0310036A (en) * 1989-09-28 1991-01-17 Nippon Mining Co Ltd Lead material for semiconductor apparatus
JPH0437151B2 (en) * 1989-09-28 1992-06-18 Nippon Mining Co
WO2006120018A1 (en) 2005-05-13 2006-11-16 Federal-Mogul Wiesbaden Gmbh & Co. Kg Plain bearing composite material, use thereof and production methods therefor
DE102005023308A1 (en) * 2005-05-13 2006-11-16 Federal-Mogul Wiesbaden Gmbh & Co. Kg Plain bearing composite material for plain bearing shells comprises a support layer made from steel, a bearing metal layer made from a copper alloy and a sliding layer applied to the bearing metal layer
DE102005023308B4 (en) * 2005-05-13 2007-02-08 Federal-Mogul Wiesbaden Gmbh & Co. Kg Slide bearing composite, use and manufacturing process
DE102005023306B4 (en) * 2005-05-13 2007-04-05 Federal-Mogul Wiesbaden Gmbh & Co. Kg Slide bearing composite, use and manufacturing process
DE102005063325B4 (en) * 2005-05-13 2008-01-10 Federal-Mogul Wiesbaden Gmbh & Co. Kg Slide bearing composite, use and manufacturing process
DE102005063324B4 (en) * 2005-05-13 2008-02-28 Federal-Mogul Wiesbaden Gmbh & Co. Kg Slide bearing composite, use and manufacturing process
US20090081471A1 (en) * 2005-05-13 2009-03-26 Maik Wilhelm Slide Bearing Composite Material, Use and Method of Production
US20090263053A1 (en) * 2005-05-13 2009-10-22 Gerd Andler Plain Bearing Composite Material, Use Thereof and Production Methods Therefor
US20100068557A1 (en) * 2005-05-13 2010-03-18 Gerd Andler Plain Bearing Composite Material, Use Thereof and Production Methods Therefor
US20100323218A1 (en) * 2005-05-13 2010-12-23 Maik Wilhelm Plain bearing composite material, use thereof and production methods therefor
US7993758B2 (en) 2005-05-13 2011-08-09 Federal-Mogul Wiesbaden Gmbh & Co. Kg Slide bearing composite material
US8241758B2 (en) 2005-05-13 2012-08-14 Federal-Mogul Weisbaden Gmbh & Co. Kg Plain bearing composite material, use thereof and production methods therefor
US8360647B2 (en) 2005-05-13 2013-01-29 Federal-Mogul Wiesbaden Gmbh Plain bearing composite material, use thereof and production methods therefor

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