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Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410039
EISBN: 978-1-62708-265-5
... The microstructure of carbon steel is largely determined by the transformation of austenite to ferrite, cementite, and pearlite. This chapter focuses on the microstructures produced by diffusion-controlled transformations that occur at relatively low cooling rates. It describes the conditions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140213
EISBN: 978-1-62708-264-8
... includes labels identifying the microconstituents that form in plain carbon steels under rapid quenching conditions. cementite iron-carbon phase diagram microstructure ...
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Published: 01 August 2015
Fig. 5.16 Cementite network around pearlite. Proeutectoid cementite and pearlite formation. Picral etch. 500×. Source: Ref 8 More
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Published: 01 August 2018
Fig. 7.14 Pearlite in a eutectoid steel. The etching relief is such that cementite is higher than ferrite. As the different pearlite colonies are intercepted at different angles by the metallography plane, the lamellar spacing observed in the image varies considerably. For instance, in the top More
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Published: 01 August 2018
Fig. 7.32 (a) Cementite network in hyper-eutectoid steel. Etchant: nital. (b) Higher magnification of area. More
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Published: 01 August 2018
Fig. 10.3 Hyper-eutectoid steel subjected to spheroidizing annealing. Cementite in globules in a ferritic matrix. Etchant: nital. More
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Published: 01 August 2018
Fig. 10.5 Hyper-eutectoid steel containing C = 1%, improperly annealed. Cementite is present partially in lamellae and partially in globules. Etchant: nital. More
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Published: 01 August 2018
Fig. 10.18 Hyper-eutectoid steel spheroidized and normalized. Cementite globules in a ferritic matrix. The austenitizing cycle in the normalizing treatment was not sufficient to completely dissolve the globular cementite. Etchant: nital. More
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Published: 01 September 2008
Fig. 14 Pearlite-steadite microstructure with cementite network More
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Published: 01 September 2008
Fig. 15 Pearlite-steadite microstructure free from cementite network More
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Published: 01 August 2018
Fig. 17.16 Hypoeutectic white cast iron. Long cementite crystals in a matrix of transformed ledeburite. Etchant: picral. More
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Published: 01 August 2018
Fig. 17.18 Hypereutectic white cast iron. Etching with sodium picrate colors cementite gray (both pro-eutectic cementite and the cementite in ledeburite). Etchant: sodium picrate solution. More
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Published: 01 August 2018
Fig. 17.51 Gray cast iron. Hypereutectoid matrix. Pearlite, graphite, cementite, phosphorus eutectic, and nonmetallic inclusions. Etchant: picral. More
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Published: 01 August 2018
Fig. 17.54 Gray cast iron. Graphite, steadite (dotted regions) and cementite in a pearlitic matrix. Steadite presents a white edge. The constituent in this edge can be identified using color etchants (see the section “ Phosphorus-Containing Eutectics ” in this chapter). Etchant: picral. More
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Published: 01 August 2018
Fig. 17.111 Incomplete malleabilization treatment. (a) The cementite in pearlite has been spheroidized and coalesced, and large areas of ledeburite can be seen. Some manganese sulfide inclusions are present. Graphite has not been formed. (b) Pearlite is beginning to decompose and form temper More
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Published: 01 September 2008
Fig. 62 Cementite structures of CT60 steel with (a) lamellar, (b) mixed, and (c) granular cementite. Original magnification: 500× More
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Published: 01 December 2018
Fig. 3.28 Microstructure of medium-carbon steel with globules of cementite in ferrite matrix More
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Published: 01 March 2006
Fig. 4 Iron-cementite phase diagram. Source: Ref 3 More
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Published: 01 January 2015
Fig. 3.7 Model of cementite structure that forms in steel. Insert is stereogram of iron nearest and next-nearest neighbor atoms around a carbon atom. Source: Ref 3.9 More
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Published: 01 January 2015
Fig. 3.8 Orthorhombic crystal structure of cementite. DO 11 is the structure (Strukturbericht) symbol. Source: Ref 3.1 More