Iron-nickel alloy

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Iron-nickel alloys (FeNi) are a group of alloys that largely consist of iron and nickel . They belong to the ferro-alloys .

Iron meteorites , like the inner core of the earth , mostly consist of an iron-nickel alloy with 4 to 30% nickel. Also minerals like Awaruit , Antitaenit , Kamacite , taenite and Tetrataenit are iron-nickel alloys.

Some of the alloys such as Permalloy (81% nickel) or Audiolloy (48% nickel) are good for magnetic shielding because of their high permeability . The Invar alloy with around 36% nickel, in turn, is characterized by very low thermal expansion . Alloys with about 29% nickel are non-magnetic and are used in mechanical engineering for components that must not be magnetizable.

As ferronickel , an alloy containing 20 to 60% nickel, and 1 to 2% cobalt , 1.5% to 2% carbon and in a small amount (<0.3%) sulfur designated consisting of oxide ores is recovered and the Steel production is used. Its inferior variant is the nickel pig iron (Nickel Pig Iron) having from 4 to 13% nickel.

Individual evidence

  1. ↑ Jörg Resag: Zeitpfad The history of our universe and our planet . Springer-Verlag, 2012, ISBN 978-3-8274-2973-5 , p. 157 ( limited preview in Google Book search).
  2. ↑ Florian Neukirchen, Gunnar Ries: The world of raw materials, deposits, extraction and economic aspects . Springer-Verlag, 2014, ISBN 978-3-642-37739-6 , pp. 47 ( limited preview in Google Book search).
  3. ↑ a b Stephan Hasse: Giesserei-Lexikon 2008 . Fachverlag Schiele & Schoen, 2007, ISBN 978-3-7949-0753-3 , p. 625 ( limited preview in Google Book search).
  4. ^ Wilhelm H. Westphal: Physical dictionary two parts in one volume . Springer-Verlag, 2013, ISBN 978-3-662-12706-3 , pp. 165 ( limited preview in Google Book search).
  5. ↑ Hans-Jürgen Bargel, Peter Cardinal, Hermann Hilbrans, Karl-Heinz Hübner, Georg Wurzel: Material Science . Springer-Verlag, 2013, ISBN 978-3-662-10904-5 , pp. 273 ( limited preview in Google Book search).
  6. ↑ Martin Bertau, Armin Müller, Peter Fröhlich, Michael Katzberg: Industrielle Inorganische Chemie . John Wiley & Sons, 2013, ISBN 978-3-527-33019-5 , pp. 344 ( limited preview in Google Book search).