US2838394A - Nickel-chromium alloys containing rare earth metals and boron - Google Patents

Nickel-chromium alloys containing rare earth metals and boron Download PDF

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Publication number
US2838394A
US2838394A US560905A US56090556A US2838394A US 2838394 A US2838394 A US 2838394A US 560905 A US560905 A US 560905A US 56090556 A US56090556 A US 56090556A US 2838394 A US2838394 A US 2838394A
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US
United States
Prior art keywords
nickel
boron
earth metals
chromium
rare
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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 - Lifetime
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US560905A
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English (en)
Inventor
Edwin Bjorn
Sven A G Svensson
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Kanthal AB
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Kanthal AB
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Publication date
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Publication of US2838394A publication Critical patent/US2838394A/en
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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

Definitions

  • Resistance materials of the kind specified may be divided into three principal classes:
  • This grain boundary oxidation will decrease the utility of the material as a resistance alloy, due in part to the fact that the oxidation will change the electric resistance value of the alloy, and in part to the fact that the grain boundary oxidation causes the body of the material to grow and thus to change its dimensions. Therefore, if it were possible to reduce the tendency towards grain boundary oxidation, this would enable the quality of the material to be materially improved, particularly owing to the fact that the maximum operating temperature could be increased.
  • the quantity of rare-earth metals added to the alloy may be in the form of so-called misch metal containing approximately to cerium, 22 to 25% lanthanum, 15 to 17% neodymium and 8 to 10% of other rareearth metals. It is understood, however, that other alloys of rare-earth metals, or such metals uncombined, may also be used, as well as oxides of such metals in combination with a reducing agent adapted to transform the oxides into a free metallic state.
  • nickel-chromium type It is practical in the production of resistance alloys of the nickel-chromium type to add metals adapted to cause deoxidation and outgassing of the alloy, such as manganese, aluminium, zirconium, magnesium and calcium, as well as carbon stabilizing metals such as vanadium, titanium, columbium and tantalum. Further there will usually be a certain amount of cobalt present in the nickel as an impurity.
  • the expression balance nickel as used hereinafter is to be interpreted as including the presence of the above-mentioned metals separately or in any combination and in percentages of the order of fractions of 1%.
  • compositions alloyed in accordance with the present invention may be mentioned:
  • a nickel-chromium alloy containing to 30% chromium, 0.2 to 2% silicon and 0.01 to 0.5 rare-earth metals, and further characterized by containing, in its finally produced condition, traces of boron amounting to a maximum content of 0.02%, and the balance nickel.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Hard Magnetic Materials (AREA)
  • Conductive Materials (AREA)
US560905A 1955-01-24 1956-01-23 Nickel-chromium alloys containing rare earth metals and boron Expired - Lifetime US2838394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2838394X 1955-01-24

Publications (1)

Publication Number Publication Date
US2838394A true US2838394A (en) 1958-06-10

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ID=20427483

Family Applications (1)

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US560905A Expired - Lifetime US2838394A (en) 1955-01-24 1956-01-23 Nickel-chromium alloys containing rare earth metals and boron

Country Status (5)

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US (1) US2838394A (da)
AT (1) AT203734B (da)
CH (1) CH345745A (da)
DK (1) DK91936C (da)
FR (1) FR1152887A (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007005605B4 (de) * 2007-01-31 2010-02-04 Thyssenkrupp Vdm Gmbh Eisen-Nickel-Chrom-Silizium-Legierung
DE102007029400B4 (de) * 2007-06-26 2014-05-15 Outokumpu Vdm Gmbh Eisen-Nickel-Chrom-Silizium-Legierung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2104836A (en) * 1935-03-07 1938-01-11 Firm Heracus Vacuumschmelze Ag Heat-resisting implement
US2255895A (en) * 1936-10-06 1941-09-16 Int Nickel Co Workable nickel and nickel alloy
US2289640A (en) * 1939-05-13 1942-07-14 Driver Co Wilbur B Alloy

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2104836A (en) * 1935-03-07 1938-01-11 Firm Heracus Vacuumschmelze Ag Heat-resisting implement
US2255895A (en) * 1936-10-06 1941-09-16 Int Nickel Co Workable nickel and nickel alloy
US2289640A (en) * 1939-05-13 1942-07-14 Driver Co Wilbur B Alloy

Also Published As

Publication number Publication date
FR1152887A (fr) 1958-02-26
AT203734B (de) 1959-06-10
CH345745A (de) 1960-04-15
DK91936C (da) 1961-10-09

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