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spheroidization

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Published: 01 December 2009
Fig. 2 Mechanisms of the spheroidization of alpha lamellae. (a) Spheroidization driven by the formation of subboundaries or shear bands within alpha lamellae. Source: Ref 9 . (b, c) Observation of shear bands developed during hot deformation. Source: Ref 8 , 11 More
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Published: 01 December 2009
Fig. 5 Static spheroidization via termination migration. (a) Plot of τ vd /τ′ as a function of ξ. (b, c) SEM backscattered micrographs of the microstructure developed in Ti-6Al-4V samples deformed at 955 °C to an effective strain of 1.1 and water quenched after holding at temperature for (b) 1 h More
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Published: 01 January 1997
Fig. 15 Effect of carbon content and spheroidization on ductility. Source: Ref 17 More
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Published: 01 January 2002
Fig. 29 Temperature-time plot of pearlite decomposition by spheroidization and graphitization. The curve for spheroidization is for conversion of one-half of the carbon in 0.15% C steel to spheroidal carbides. The curve for graphitization is for conversion of one-half of the carbon in aluminum More
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Published: 01 December 2004
Fig. 21 AISI W1 (1.05% C). Influence of starting structure on spheroidization. (a) As-rolled; contains coarse and fine pearlite. (b) After spheroidization (heat to 760 °C, or 1400 °F; cool at a rate of 11 °C/h, or 20 °F/h, to 595 °C, or 1100 °F; air cool). (c) Austenitized at 870 °C (1600 °F More
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Published: 01 January 2005
Fig. 13 Effect of strain and strain rate on percent spheroidization of Ti-49Al-2V at 1330 K. Source: Ref 15 More
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Published: 01 December 2004
Fig. 25 AISI L1, spheroidize annealed. Note the very-well-formed spheroidal carbides. 4% picral. 500× More
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Published: 01 December 1998
Fig. 4 Graphite in a spheroidize-annealed AISI type O6 graphitic tool steel specimen (transverse plane). The irregular black particles are graphite. The matrix is ferrite containing spheroidized cementite. Etched with 4% picral. 500× More
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Published: 01 December 1998
Fig. 13 Influence of etchant upon the ability to observe spheroidized cementite in AISI 1008 sheet steel. (Left) Etched with 4% picral. (Right) Etched with 2% nital. 500× More
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Published: 01 December 1998
Fig. 14 Spheroidized cementite in AISI W2 carbon-vanadium (1.10% C) tool steel. Etched with 4% picral. 1000× More
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Published: 31 August 2017
Fig. 5 Typical graphite shapes after ASTM A247. I, spheroidal graphite; II, imperfect spheroidal graphite; III, temper graphite; IV, compacted graphite; V, crab graphite; VI, exploded graphite; VII, flake graphite More
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Published: 31 August 2017
Fig. 7 Transmission electron microscopy image of a fractured graphite spheroid showing crystallization sites (indicated by arrows) of amorphous graphite. Source: Ref 11 More
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Published: 31 August 2017
Fig. 9 Energy-dispersive x-ray analysis composition maps in a graphite spheroid. Source: Ref 49 More
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Published: 31 August 2017
Fig. 10 Inclusions found in the center of graphite (Gr) spheroids. Source: Ref 49 More
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Published: 31 August 2017
Fig. 13 Scanning electron microscopy images of spheroidal graphite showing conical sectors and graphite nuclei. (a) Well-formed graphite spheroid. Reprinted with permission from The American Foundry Society. Source: Ref 57 . (b) Graphite spheroid with separated sectors. Reprinted with permission More
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Published: 31 August 2017
Fig. 29 Transmission electron microscopy image of a fractured graphite spheroid showing crystallization sites (indicated by arrows) of amorphous graphite. Reprinted with permission from Nature Publishing Group/Macmillan Publishers Ltd. Source: Ref 95 More
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Published: 31 August 2017
Fig. 34 Isothermal growth of a graphite spheroid within an austenite shell. Source: Drawing in Ref 5 after Ref 103 More
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Published: 31 August 2017
Fig. 35 Microstructures of spheroidal graphite iron found in the same microshrinkage cavity from a cast plate. (a) Primary austenite dendrite. (b) Eutectic austenite dendrite with encapsulated graphite spheroids. (c) Overall view of microshrinkage. Reprinted with permission from The American More
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Published: 31 August 2017
Fig. 15 Cooling curve of spheroidal graphite iron for various numbers of growing nodules. Source: Ref 8 More
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Published: 31 August 2017
Fig. 16 Two-dimensional simulated microstructure evolution of a spheroidal graphite iron with the solidification time of (a) 4.8, (b) 6.8, (c) 10.4, and (d) 17.4 s. Source: Ref 66 More