Difference between revisions of "Malleable iron"
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== Description == | == Description == | ||
| − | [ | + | [[White%20cast%20iron|White cast iron]] can be converted to malleable iron by decomposing the cementite to form [[graphite|graphite]] nodules. To form malleable iron, [[cast%20iron|cast iron]] is annealed for 2-3 days at about 800C in an oxygen-free atmosphere, then the temperature is decreased slowly. The [[iron|iron]] must be low in [[carbon|carbon]] and contain about 1.0 to 1.5% [[silicon|silicon]]. The silicon and heat convert any iron carbide to graphite which deposits in nodules. Slight additions of copper accelerates the annealing process. The term malleable iron has also been used to refer to [[wrought%20iron|wrought iron]]. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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blackheart iron; whiteheart iron; nodular iron; ductile cast iron; wrought iron; fer malléable (Fr.); Schmiedbares Eisen (Deut.); Schmiedeeisen (Deut.); smeedbaar ijzer (Ned.); ferro fundido dúctil (Port.) | blackheart iron; whiteheart iron; nodular iron; ductile cast iron; wrought iron; fer malléable (Fr.); Schmiedbares Eisen (Deut.); Schmiedeeisen (Deut.); smeedbaar ijzer (Ned.); ferro fundido dúctil (Port.) | ||
| − | == | + | ==Resources and Citations== |
* ''Dictionary of Building Preservation'', Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996 | * ''Dictionary of Building Preservation'', Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996 | ||
| − | * | + | * Olympus Microscopy Resource Center at http://www.olympusmicro.com/galleries/abramowitz/pages/ductilecastironsmall.html |
| − | * Wikipedia | + | * Wikipedia: http://en.wikipedia.org/wiki/Cast_iron (Accessed Oct. 18, 2005) |
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 489 | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 489 | ||
Latest revision as of 12:36, 1 October 2022
Description
White cast iron can be converted to malleable iron by decomposing the cementite to form Graphite nodules. To form malleable iron, Cast iron is annealed for 2-3 days at about 800C in an oxygen-free atmosphere, then the temperature is decreased slowly. The Iron must be low in Carbon and contain about 1.0 to 1.5% Silicon. The silicon and heat convert any iron carbide to graphite which deposits in nodules. Slight additions of copper accelerates the annealing process. The term malleable iron has also been used to refer to Wrought iron.
Synonyms and Related Terms
blackheart iron; whiteheart iron; nodular iron; ductile cast iron; wrought iron; fer malléable (Fr.); Schmiedbares Eisen (Deut.); Schmiedeeisen (Deut.); smeedbaar ijzer (Ned.); ferro fundido dúctil (Port.)
Resources and Citations
- Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
- Olympus Microscopy Resource Center at http://www.olympusmicro.com/galleries/abramowitz/pages/ductilecastironsmall.html
- Wikipedia: http://en.wikipedia.org/wiki/Cast_iron (Accessed Oct. 18, 2005)
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 489
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997