US3297437A - Copper base alloys containing manganese and aluminium - Google Patents

Copper base alloys containing manganese and aluminium Download PDF

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Publication number
US3297437A
US3297437A US340515A US34051564A US3297437A US 3297437 A US3297437 A US 3297437A US 340515 A US340515 A US 340515A US 34051564 A US34051564 A US 34051564A US 3297437 A US3297437 A US 3297437A
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US
United States
Prior art keywords
alloy
aluminium
manganese
zinc
nickel
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Expired - Lifetime
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US340515A
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English (en)
Inventor
Bosman Leendert
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Lips NV
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Lips NV
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/05—Alloys based on copper with manganese as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper

Definitions

  • a monophase forging alloy containing less than 5% iron, less than 6% nickel, between 5 and manga nese, 1 to 7-%- aluminium and 0.01 to 0.2% arsenic, antimony or phosphorus,- balance copper.
  • arsenic, antimony or phosphorus increase the corrosion resistance by preventing the aluminium from being extracted from the alloy.
  • Such known alloy-s particularly have a composition of between 5 and 13% of manganese and experiments have been made with an alloy of 12% manganese.
  • an alloy having 8.5% to 10% manganese, 8.5 to 10.5% aluminium, 2.5 to 5% iron, 2 to 3% nickel, less than 0.25% impurities such as zinc, lead and silicon, and the balance copper.
  • Such alloys have a good resistance against corrosion and cavitation-erosioncorrosion in seawater.
  • This invention is based upon the discovery that the corrosion resistance and particularly the resistance against cavitation-erosion-corrosion of such .alloys in seawater, particularlyat high. relative water speeds, may be improved at such known manganese contents (about 10 to 16%) while maintaining good mechanical characteristics such as tensile strength, 0.2-yield limit, total elongation, contraction at rupture and fatigue strength under rotated bending both in air and in seawater, without increase of melting point, and while maintaining a good weldability, deformability in hot condition and extrudability if such an alloy is manufactured with the following composition:
  • Percent Iron 1 to 9 Nickel if desired entirely or in part replaced by cobalt 0 to 7 Aluminium 3 to 9 Nickel and iron together; 3 to 14 Manganese 10 to 16 Zinc 1 to 7 Balance copper and usual impurities.
  • Zinc has a much lower melting point than manganese, which has lower aluminium equivalent than zinc, namely about 0.1 to 0.2. Thus less zinc than manganese is necessary for the same effect and zinc is not only more economical than manganese, but due to the low melting point of zinc it is possible to produce the melt more rapidly and with less heating energy, particularly with respect to final corrections of the bath.
  • the surprising character of the present invention appears from the fact that up tonow in comparable alloys with relatively high managanese content no zinc was used at all, such as in the alloy given above with 1 to 5% iron, 1 to 6% nickel, 6 to 9% aluminium, 10 to 15% manganese, balance copper.
  • B.$ 1400 1961: Schedule of Copper Alloy Ingots and Copper Alloy Castings, pages 65-68 for manganese-aluminium-copper alloys, to total absence of zinc is taken as a basis.
  • Example 1 The following elements were melted together in a suitable furnace:
  • the alloy was cast in a sand mold bonded by cement. Examination of a sample of this alloy gave the following values:
  • Example II In a suitable furnace an alloy was made which obtained the following composition:
  • Example III.-An alloy was made with the following composition:
  • Example I V.-An alloy was made'with the following composition:
  • Example V.-An alloy was made with the following composition
  • Example VI.An alloy was made with the following composition:
  • This alloy was with respect to its corrosion resistance and cavitation-erosion-corrosion resistance in seawater at a speed of 125 feet per second compared with the following known manganese-aluminium-cooper alloy: iron 2.74%, nickel 2.03%, aluminium 8.45%, manganese 12.04%, balance copper and impurities.
  • Example VI the corrosion resistance of the alloy according to the invention, Example VI, was about 60% higher than of said known alloy.
  • the cavitation-erosiou-corrosion resistance was about 100% better than of said known alloy.
  • Example VII.An alloy was made with the following composition:
  • the alloy was tested as indicated under Example VI and compared with the known alloy given in saidexample.
  • the corrosion-resistance of the alloy accordingto the invention was about 15% better than of said known alloy.
  • the cavitationerosion-corrosion resistance was also in this case about better than of said known alloy.
  • Example VIIl.An alloy was made with the following composition:
  • An alloy having the following weight composition: 1 to 9% iron, up to 7% of a member selected from the class consisting of nickel, cobalt, and mixtures thereof, 3 to 9% aluminum, 10 to 16% manganese, 1 to 7% zinc, balance essentially copper, the sum of the iron and any nickel being 3 to 14%, in which the aluminum equivalent, calculated by adding to the aluminum percentage 0.15 times the manganese percentage and 0.35 times the zinc percentage, is between 7 and 13.
  • An alloy having the following weight composition: 2 to 7% iron, 1 to 5% of a member selected from the class consisting of nickel, cobalt, and mixtures thereof, 5 to 8% aluminum, 10 to 16% manganese, 1.6 to 5.5% zinc, balance essentially copper, in which the aluminum equivalent, calculated by adding to the aluminum percentage 0.15 times the manganese percentage and 0.35 times the zinc percentage, is between 7 and 13.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Conductive Materials (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)
US340515A 1963-02-13 1964-01-27 Copper base alloys containing manganese and aluminium Expired - Lifetime US3297437A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL288920 1963-02-13

Publications (1)

Publication Number Publication Date
US3297437A true US3297437A (en) 1967-01-10

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US340515A Expired - Lifetime US3297437A (en) 1963-02-13 1964-01-27 Copper base alloys containing manganese and aluminium

Country Status (6)

Country Link
US (1) US3297437A (xx)
BE (1) BE643611A (xx)
DE (1) DE1458428B2 (xx)
DK (1) DK105236C (xx)
ES (1) ES295606A1 (xx)
GB (1) GB1034895A (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516825A (en) * 1967-12-14 1970-06-23 Andrei Nikolaevich Shashkov Solder for soldering or brazing cast iron
US3901692A (en) * 1969-08-29 1975-08-26 Tsuneaki Mikawa Corrosion resistant copper alloy and the method of forming the alloy
US4113475A (en) * 1976-04-09 1978-09-12 Kennecott Copper Corporation Tarnish resistant copper alloy
EP0678586A1 (de) * 1994-04-20 1995-10-25 Wieland-Werke Ag Kupfer-Mangan-Zink-Aluminium-Legierung und ihre Verwendung
DE19624731A1 (de) * 1996-06-21 1998-01-02 Berkenhoff Gmbh Legierung, insbesondere zur Herstellung von Brillengestellen, Schmuck etc.
US6149739A (en) * 1997-03-06 2000-11-21 G & W Electric Company Lead-free copper alloy
EP1995337A1 (fr) * 2007-05-25 2008-11-26 Bronze Alu Alliage à base de cuivre et pièce obtenue
CN104388749A (zh) * 2014-12-17 2015-03-04 湖南科技大学 一种高强减摩耐磨锰铝青铜合金
CN104451244A (zh) * 2014-12-17 2015-03-25 湖南科技大学 一种高性能减摩耐磨锰铝青铜合金

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2866384B2 (ja) * 1988-11-04 1999-03-08 オイレス工業株式会社 耐摩耗性を有する摺動部材用アルミニウム青銅鋳物
DE4214304A1 (de) * 1992-04-30 1993-11-04 Deutsche Nickel Ag Nickelfreie buntmetallegierung und deren verwendung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2085416A (en) * 1936-10-06 1937-06-29 Union Carbide Corp High strength brass
FR880325A (fr) * 1940-12-28 1943-03-23 Fu Rstlich Hohenzollernsche Hu Alliage cuivreux
US2372152A (en) * 1942-12-03 1945-03-20 Westinghouse Electric & Mfg Co Copper base alloys
GB762235A (en) * 1954-06-11 1956-11-28 Manganese Bronze And Brass Com New aluminium bronzes
GB868276A (en) * 1958-10-18 1961-05-17 Eugen Vaders Improvements in or relating to bearing metal alloys
US3134669A (en) * 1961-06-13 1964-05-26 Lips N V Drunen Copper base alloys containing manganese and aluminium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2085416A (en) * 1936-10-06 1937-06-29 Union Carbide Corp High strength brass
FR880325A (fr) * 1940-12-28 1943-03-23 Fu Rstlich Hohenzollernsche Hu Alliage cuivreux
US2372152A (en) * 1942-12-03 1945-03-20 Westinghouse Electric & Mfg Co Copper base alloys
GB762235A (en) * 1954-06-11 1956-11-28 Manganese Bronze And Brass Com New aluminium bronzes
GB868276A (en) * 1958-10-18 1961-05-17 Eugen Vaders Improvements in or relating to bearing metal alloys
US3134669A (en) * 1961-06-13 1964-05-26 Lips N V Drunen Copper base alloys containing manganese and aluminium

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516825A (en) * 1967-12-14 1970-06-23 Andrei Nikolaevich Shashkov Solder for soldering or brazing cast iron
US3901692A (en) * 1969-08-29 1975-08-26 Tsuneaki Mikawa Corrosion resistant copper alloy and the method of forming the alloy
US4113475A (en) * 1976-04-09 1978-09-12 Kennecott Copper Corporation Tarnish resistant copper alloy
EP0678586A1 (de) * 1994-04-20 1995-10-25 Wieland-Werke Ag Kupfer-Mangan-Zink-Aluminium-Legierung und ihre Verwendung
DE19624731A1 (de) * 1996-06-21 1998-01-02 Berkenhoff Gmbh Legierung, insbesondere zur Herstellung von Brillengestellen, Schmuck etc.
US6149739A (en) * 1997-03-06 2000-11-21 G & W Electric Company Lead-free copper alloy
EP1995337A1 (fr) * 2007-05-25 2008-11-26 Bronze Alu Alliage à base de cuivre et pièce obtenue
FR2916452A1 (fr) * 2007-05-25 2008-11-28 Bronze Alu Soc Par Actions Sim Alliage a base de cuivre et piece obtenue
CN104388749A (zh) * 2014-12-17 2015-03-04 湖南科技大学 一种高强减摩耐磨锰铝青铜合金
CN104451244A (zh) * 2014-12-17 2015-03-25 湖南科技大学 一种高性能减摩耐磨锰铝青铜合金
CN104451244B (zh) * 2014-12-17 2016-08-17 湖南科技大学 一种高性能减摩耐磨锰铝青铜合金

Also Published As

Publication number Publication date
DK105236C (da) 1966-09-05
ES295606A1 (es) 1964-04-01
GB1034895A (en) 1966-07-06
DE1458428B2 (de) 1970-11-26
BE643611A (xx) 1964-08-10
DE1458428A1 (de) 1969-09-18

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