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white iron

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170107
EISBN: 978-1-62708-297-6
... Abstract This article discusses the production, properties, and uses of high-alloy white irons. It explains how the composition and melt are controlled to produce a large volume of eutectic carbides, making these irons particularly hard and resistant to wear, and how the metallic matrix...
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Published: 01 October 2011
Fig. 10.7 Eutectic cementite (white) of an as-cast white iron with pearlite (gray). The gray areas were austenite during solidification but are transformed to pearlite during solid-state cooling. (a) Sand-cast white iron (3.6C-0.41Si-0.46Mn-0.98Cr-0.15P-0.024S) with carbon equivalent of 3.7 More
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Published: 01 March 2002
Fig. 2.50 Mottled pearlitic cast iron. Gray iron at upper left and white iron at lower right of photo. 4% picral etch. 250× More
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Published: 01 January 2022
Fig. 7.46 High-alloy cast iron and white iron. Source: Ref 3 More
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Published: 01 October 2011
Fig. 10.2 Fracture surface of a white iron. Source: Ref 10.2 More
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Published: 01 December 2001
Fig. 3 Effect of carbon content on the hardness of low-carbon white iron More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320103
EISBN: 978-1-62708-332-4
... Abstract This chapter covers mechanical properties, microstructures, chemical compositions, manufacturing processes, and engineering of gating practices for several applications of gray, white, and alloyed cast irons. It begins with a description of material standards, followed by a section...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170100
EISBN: 978-1-62708-297-6
... Abstract This article explains how malleable iron is produced and how its microstructure and properties differ from those of gray and ductile iron. Malleable iron is first cast as white iron then annealed to convert the iron carbide into irregularly shaped graphite particles called temper...
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Published: 01 August 2018
Fig. 17.5 Cooling curves (schematic) of (a) gray cast iron, (b) white cast iron, and (c) mottled cast iron. In addition to the stable and metastable eutectic temperatures, the temperatures at the start of the solidification of the pro-eutetic austenite (T ℓ ) and the end of solidification (T f More
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Published: 01 December 1984
Figure 1-35 Fractograph of wedge test specimen of cast iron. The white areas indicate the presence of iron carbide, while the dark areas indicate that flake graphite is present. More
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Published: 01 August 2018
Fig. 8.25 Cast iron. White regions are dendrites of pro-eutectic austenite. Between the dendrites the austenite-graphite eutectic can be seen. Optical micrograph; picral etchant. Reproduced with permission from DoITPoMS, University of Cambridge. More
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Published: 01 August 2018
Fig. 8.26 White cast iron. Dark regions are dendrites of pro-eutectoid austenite that transformed to pearlite on cooling. In the regions between the dendrites, the austenite-cementite eutectic (ledeburite) can be seen. In the eutectic, austenite has transformed to pearlite (dark) and the iron More
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Published: 01 August 2018
Fig. 8.40 Macrograph of a white cast iron. Dendrites are clearly visible. The dendrite axes are dark, as the austenite in these regions has decomposed into ferrite and cementite, probably pearlite. Etchant: Nitric acid (nital). (Compare with Fig. 8.39 .) More
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Published: 01 August 2018
Fig. 17.12 (a) Hypoeutectic white cast iron. Austenite dendrites were transformed into pearlite (dark). The transformed ledeburite, among the dendrites, is composed of cementite (white) and pearlite (dark, small dots). Etchant: nital. (b) Another hypoeutectic white cast iron. Austenite More
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Published: 01 August 2018
Fig. 17.15 Hypoeutectic white cast iron rapidly cooled during solidification. Small interdendritic arm spacing. Etchant: picral. 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. 17.17 Larger magnification view of the structure of the white cast iron presented in Fig. 17.16 . 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. 17.19 Transformed ledeburite in the eutectic region of a white cast iron. Small areas of pearlite in a cementite matrix. Etchant: picral. More
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Published: 01 August 2018
Fig. 17.70 Region close to the surface in a hypoeutectic white cast iron part. The rapid extraction of heat through the surface has led to the growth of dendrites in a direction normal to the surface, forming a columnar zone. Etchant: nital. More