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graphite flakes

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Published: 01 December 1998
Fig. 24 Retention of graphite in cast iron. (a) Coarse graphite flakes in a gray iron specimen that was polished with a long-nap cloth. Note enlarged cavities where the graphite phase has been torn out. (b) Well-preserved graphite flakes in a gray iron specimen that was polished with a napless More
Image
Published: 31 August 2017
Fig. 7 Retention of graphite in cast iron. (a) Coarse graphite flakes in a gray iron specimen that was polished with a long-nap cloth. Note enlarged cavities where the graphite phase has been torn out. (b) Well-preserved graphite flakes in a gray iron specimen that was polished with a napless More
Image
Published: 01 December 2004
Fig. 6 Microstructure of gray cast iron showing graphite flakes and phosphorus-rich eutectic in a pearlite matrix. Nital etch More
Image
Published: 31 August 2017
Fig. 8 The maximum dimension of graphite flakes ( L max ) as a function of the number of eutectic cells (N A ) in inoculated GCI (carbon equivalent [CE] = 4.3) More
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Published: 01 November 2010
Fig. 49 Micrograph of large graphite flakes of gray cast irons or clusters having a preferable orientation of flakes and located near the casting surface. These serve as an appreciable stress raiser. Source: Ref 1 More
Image
Published: 31 August 2017
Fig. 1 Graphite flake size as specified by ASTM A247. (a) Longest flakes 101.6 mm (4 in.) or more in length. (b) Longest flakes 50.8 to 101.6 mm (2 to 4 in.) in length. (c) Longest flakes 25.4 to 50.8 mm (1 to 2 in.) in length. (d) Longest flakes 12.7 to 25.4 ( 1 2 to 1 in.) in length More
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Published: 31 August 2017
Fig. 18 Effect of maximum graphite flake length on the tensile strength of gray iron. Source: Ref 25 More
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Published: 31 August 2017
Fig. 21 Effect of graphite flake length on tensile strength for two sets of gray irons. Source: Ref 32 More
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Published: 31 August 2017
Fig. 28 Room-temperature thermal diffusivity as a function of graphite flake length for step blocks and rotor samples. Linear correlation shown is for step-block samples only. Source: Ref 67 More
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Published: 31 August 2017
Fig. 15 Effect of maximum graphite flake length on the tensile strength of gray iron. Source: Ref 23 More
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Published: 01 January 1997
Fig. 45 Classification of different graphite flake morphology More
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006310
EISBN: 978-1-62708-179-5
...Abstract Abstract Unlike gray iron, which contains graphite flakes, ductile iron has an as-cast structure containing graphite particles in the form of small, rounded, spheroidal nodules in a ductile metallic matrix. This article discusses the raw materials that are used for ductile iron...
Book Chapter

By Charles V. White
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001002
EISBN: 978-1-62708-161-0
...Abstract Abstract ASTM specification A 48 classifies gray irons in terms of tensile strength. The usual microstructure of gray iron is a matrix of pearlite with graphite flakes dispersed throughout. Section sensitivity effects are used in the form of a wedge test in production control to judge...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003090
EISBN: 978-1-62708-199-3
... pearlitic microstructure; the machine housing has a ferrite plus pearlite matrix with graphite flakes; and the jaw crusher microstructure contains martensite and cementite. cast irons material selection mechanical properties microstructure steels THE PROPERTIES of irons and steels are linked...
Image
Published: 01 January 1989
Fig. 6 Microstructural variations that influence machinability in class 40 gray iron 260 mm (10.3 in.) diam bar samples. Machinability increases from (a) low machinability to (d) highest machinability. (a) This gray iron has type D and E distribution of graphite flakes approximately 260 to 250 mm More
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Published: 01 December 2008
Fig. 9 Suggested growth rate curves for austenite (γ) and graphite (Gr) in the Fe-C-Si alloys. (a) Austenite-flake graphite eutectic. (b) Austenite-spheroidal graphite eutectic. (c) Different graphite growth rates in lamellar growth. R Gr   [ 10 1 ¯ 0 ] determines More
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Published: 31 August 2017
Fig. 4 (a) Schematic diagram illustrating preferential formation of ferrite around a graphite nodule and at the tips of a graphite flake. Source: Ref 7 . (b) Comparison of ferrite formation in FG and CG irons isothermally held at 750 °C (1380 °F). Source: Ref 6 More
Image
Published: 01 December 2004
Fig. 28 An enhanced replica representing the microstructure of a cast iron rotary straightener roll sleeve that experienced wear in service. In (a) note the nodular graphite flakes and some graphite nodules on a ferrite + pearlite matrix and (b) a decarburized surface layer of ferrite. 4% picral More
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003107
EISBN: 978-1-62708-199-3
... test bars GRAY IRON refers to a broad class of ferrous casting alloys normally characterized by a microstructure of flake graphite in a ferrous matrix. Gray irons are in essence iron-carbon-silicon alloys that usually contain 2.5 to 4% C, 1 to 3% Si, and additions of manganese, depending...
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Published: 01 December 2004
Fig. 56 Bronze (Cu-10Sn) with 4% graphite pressed at 165 to 205 MPa (12 to 15 tsi) to 6.4 g/cm 3 , sintered 15 min at 845 °C (1550 °F), and sized. Arrows GP show graphite in pores surrounded by darker gray epoxy resin; arrow G, graphite flake in the matrix. Arrows S surround a small grain cluster More