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lamellar graphite

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Published: 31 August 2017
Fig. 6 Typical flake (lamellar) graphite shapes specified in ISO 945-1 (equivalent to ASTM A247). (a), uniform distribution, random orientation; (b), rosette groupings; (c), primary graphite, also called kish graphite (superimposed flake sizes, random orientation); (d), undercooled graphite More
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Published: 31 August 2017
Fig. 5 Room-temperature eutectic grain structure in lamellar graphite iron. Original magnification: 14×. Source: Ref 10 More
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Published: 31 August 2017
Fig. 5 Lamellar graphite (Gr) growing on a cuboidal TiC. Reprinted with permission from Elsevier. Source: Ref 28 More
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Published: 31 August 2017
Fig. 26 Scanning electron micrographs of sand-cast lamellar graphite (LG) irons at room temperature. (a) Parallel graphite (Gr) platelets at the γ/liquid interface in low-sulfur LG iron. Reprinted with permission from Elsevier. Source: Ref 68 . (b) Fracture surface showing tiled-roof More
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Published: 31 August 2017
Fig. 32 Solidification of the eutectic in lamellar graphite iron during continuous cooling (different gray shades indicate different crystallographic orientations). (a) Eutectic iron, early solidification. (b) Eutectic iron, late solidification. (c) Hypoeutectic iron or eutectic iron at high More
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Published: 31 August 2017
Fig. 19 Cumulative expansion during solidification of lamellar graphite iron. CE, carbon equivalent. Source: Ref 22 More
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Published: 31 August 2017
Fig. 3 Example of ferrito-pearlitic microstructure obtained with lamellar graphite (LG), compact graphite (CG), and spheroidal graphite (SG) cast irons. Ferrite appears white, pearlite dark grey, and graphite black after etching with 5% nital. Eutectic cells in LG cast irons may be very large More
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Published: 31 August 2017
Fig. 5 Cooling curve of hypoeutectic cast iron with lamellar graphite More
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Published: 31 August 2017
Fig. 6 Supercooling of cast iron with lamellar graphite in (a) a noninoculated state and (b) an inoculated state More
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Published: 31 August 2017
Fig. 7 Curve fitting of a tensile stress-strain curve for (a) lamellar graphite iron (LGI), (b) compacted graphite iron (CGI), and (c) spheroidal graphite iron (SGI) materials using the Ludwigson model and data from Table 1 . More
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Published: 31 August 2017
Fig. 48 Effect of some alloying elements on scaling of lamellar graphite iron. (a) Gain in weight of irons listed in Table 19 after 200 h at temperature in air. Source: Ref 77 . (b) Effect of chromium on the gain in weight of a gray iron held at 800 °C (1470 °F). Source: Ref 78 More
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Published: 01 December 2008
Fig. 5 Gray, or flake or lamellar graphite, cast iron (3.6C-2.0Si-0.2P). Carbon equivalent: 4.31%. As-cast transverse section of sand casting. Original magnification: 100×. Contributed to ASM Online Micrograph Center by L.E. Samuels More
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Published: 31 August 2017
Fig. 31 Microstructures of lamellar and compacted graphite irons obtained through interrupted solidification. Growth of the austenite-graphite eutectic for iron cast in bars with diameters of 15 to 41 mm (0.6 to 1.6 in.). (a) Low-sulfur (0.011% S) hypoeutectic lamellar graphite iron. (b More
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006304
EISBN: 978-1-62708-179-5
... with a discussion on the nucleation and growth of austenite dendrites. It describes the nucleation of lamellar graphite, spheroidal graphite, and austenite-iron carbide eutectic. The article reviews three main graphite morphologies crystallizing from the iron melts during solidification: lamellar (LG), compacted...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006300
EISBN: 978-1-62708-179-5
... untransformed volume. The article describes the austenite decomposition to ferrite and pearlite in spheroidal graphite irons and lamellar graphite irons. It provides a discussion on modeling austenite decomposition to ferrite and pearlite. austenite decomposition austenite-to-pearlite transformation...
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Published: 31 August 2017
Fig. 16 Cooling rate as a function of recalescence temperature for different types of graphite structures. CG, compacted graphite; SG, spheroidal graphite; LG, lamellar graphite. Source: Ref 39 More
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Published: 31 August 2017
Fig. 39 Influence of temperature gradient/growth velocity ( G / V ) ratios and percent cerium on structural transitions in cast iron. CG, compacted graphite; SG, spheroidal graphite; FG, flake graphite, i.e., lamellar graphite. Source: Ref 55 More
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Published: 31 August 2017
Fig. 9 Logarithm of the true plastic deformation curves for different morphologies of graphite in cast iron: spheroidal graphite iron (SGI), compacted graphite iron (CGI), and lamellar graphite iron (LGI). k , strength coefficient; n , deformation-hardening constant More
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Published: 31 August 2017
Fig. 37 Correlation between graphite shape and ultrasonic velocity in cast iron with various graphite shapes (3.59–3.8% C, 1.92–2.29% Si, 0.21–0.31% Mn, 0.01–0.019% Mg). SG, spheroidal graphite; CG, compacted graphite; LG, lamellar graphite. Source: Ref 82 More
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Published: 31 August 2017
Fig. 2 Dependency of the elastic modulus on graphite morphology (in terms of ellipsoidal aspect ratio). Modeled with the Boccaccini equation ( Ref 5 ) using fractions of graphite 0.08 to 0.14 and a graphite elastic modulus of 15 GPa (2.2 × 10 6 psi). LGI, lamellar graphite iron; CGI, compacted More