Search Results for cementite

Fig. 76 Spheroidized cementite particles pinning a recrystallization front during intercritical annealing of a low-carbon steel. Note the recovered dislocation substructure to the left of the front. Thin foil TEM specimen More

Fig. 20 AP composition profile across a cementite/ferrite interface in a pearlitic steel (Fe-0.6C-0.85Cr-0.66Mn-0.26Si). Source: Ref 7 More

Fig. 12 A cracked cementite particle in a cold-rolled low-carbon steel (approximately 0.1% C). A high magnification view of a cracked cementite particle showing multiple cracks and shattering. Courtesy of Richard Holman, University of Tennessee More

Fig. 4 Pearlite colonies surrounded by cementite network in high-carbon (1.0% C) steel. Etched with equal parts of 4% picral + 4% nital. 1000× More

Fig. 11 Growth front of pearlite indicating that ledges span both cementite (C) and ferrite (F) as they grow into the austenite (A). Source: Ref 10 More

Fig. 12 Pearlitic microstructure with Widmanstätten cementite plates acting as nucleation sites. Source: Ref 10 More

Fig. 19 Different appearance of ferrite and cementite (Fe 3 C) constituents of pearlite when examined by optical (light) and scanning electron microscopes (SEMs). A polished specimen is chemically etched such that the Fe 3 C platelets stand out in relief. (a) In optical microscopy at low More

Fig. 38 Spheroidized cementite in a hypereutectoid steel that was heated after cold rolling of a prior-ferrite-pearlite microstructure. During plastic deformation, dislocations broke up the cementite lamellae in the pearlite, and subsequent heating allowed the material to minimize its energy More

Fig. 5 Iron-carbon phase diagram with constituents in the form of cementite (Fe 3 C) and graphite (as the equilibrium form of carbon). Although cementite is strictly a metastable phase that eventually decomposes into iron and graphite, cementite is sufficiently stable over the time scales More

Fig. 15 Growth front of pearlite indicating that ledges span both cementite (C) and ferrite (F) as they grow into the austenite (A). Source: Ref 11 as published in Ref 1 More

Fig. 8 Cementite particles in the microstructure of AISI W2 steel. Gray-scale (left) and binary (right) images of the particles are visible. More

Fig. 4 Three-dimensional reconstruction of proeutectoid cementite precipitates in an isothermally transformed Fe-13Mn-1.3C alloy. Arrow indicates precipitate selected from grain for imaging in Fig. 5 Source: Ref 3 More

Fig. 5 Three perspective views of the Widmanstätten cementite precipitate indicated by an arrow in Fig. 4 Source: Ref 3 More

Fig. 10 Three-dimensional reconstruction of cementite lamellas in pearlite. Connections between lamellas are often too small to be resolved easily by optical microscopy. Source: Ref 27 More

Fig. 11 Three-dimensional reconstruction of cementite lamellas in pearlite. The broad faces of these lamellas twist counterclockwise from the rear to the front of this perspective view. Source: Ref 27 More

Fig. 47 Cementite in an as-hot-rolled Fe-1%C binary alloy revealed by tint etching with Beraha's sodium molybdate tint etch. The arrow points to proeutectoid cementite that precipitated in a prior-austenite grain boundary. The etch also colored the cementite in the pearlite. The specimen More

Fig. 49 Cementite colored in chill-cast hypoeutectic gray iron using Beraha's selenic acid reagent (No. 1) (bright field). The magnification bar is 100 μm long. More

Fig. 3 Orthorhombic crystal structure of cementite (Fe 3 C, or ε-carbide), which contains 93.3% iron and 6.67% carbon. The spherical components shown are iron (Fe) atoms. Each carbon atom is surrounded by eight iron atoms, or each iron atom is connected to three carbon atoms. The crystal More

Fig. 12 Effects of cementite morphology and austenitizing temperature on quenching cracking susceptibility of plain carbon steels. Source: Ref 16 More

Fig. 8 Light micrograph showing cementite network on prior-austenite grain boundaries in an Fe-1.12C-1.5Cr alloy. Courtesy of T. Ando More