2012
DOI: 10.1007/s11661-012-1434-8
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The Role of Silicon in the Solidification of High-Cr Cast Irons

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Cited by 28 publications
(6 citation statements)
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“…It has been shown that the decomposition of SiC starts at 610 o C, then silicon diffuses into the lattice of iron to alloy with iron. The diffusion of silicon tends to de-stabilize γ-Fe and hinder the phase transformation of α-Fe → γ-Fe, raising the phase transformation temperature [34]. When the atomic percent of Si is above 3.8 at%, there is no phase transformation from -Fe to -Fe.…”
Section: Characterizationmentioning
confidence: 99%
“…It has been shown that the decomposition of SiC starts at 610 o C, then silicon diffuses into the lattice of iron to alloy with iron. The diffusion of silicon tends to de-stabilize γ-Fe and hinder the phase transformation of α-Fe → γ-Fe, raising the phase transformation temperature [34]. When the atomic percent of Si is above 3.8 at%, there is no phase transformation from -Fe to -Fe.…”
Section: Characterizationmentioning
confidence: 99%
“…High‐Cr white cast irons are ferrous alloys containing Cr contents in the range of 11–30% and C in the range of 1.8–3.6% . The typical microstructure of these alloys is that high‐volume fraction of hard carbides (primary and/or eutectic M 7 C 3 where mL includes Cr, Fe, and other strong carbide formers), with a hardness of 1200–1800 HV, embed in a relatively ductile ferrous matrix .…”
Section: Introductionmentioning
confidence: 99%
“…High‐Cr white cast irons are ferrous alloys containing Cr contents in the range of 11–30% and C in the range of 1.8–3.6% . The typical microstructure of these alloys is that high‐volume fraction of hard carbides (primary and/or eutectic M 7 C 3 where mL includes Cr, Fe, and other strong carbide formers), with a hardness of 1200–1800 HV, embed in a relatively ductile ferrous matrix . On one hand, the presence of hard carbides results in outstanding wear resistance so that high‐Cr white cast irons are widely used in applications where the stability in an aggressive environment is a principal requirement, such as mining and mineral processing, slurry pumping, cement manufacturing, and steel making industries .…”
Section: Introductionmentioning
confidence: 99%
“…It is well known that high-Cr cast irons (HCCIs) possess high hardness and excellent wear resistance with inherent server brittleness because of the microstructural characteristics consisting of massive hard carbides in the ferrous matrix [17][18][19] . High crack sensitivity derived from the brittleness results in an inferior deformability of the HCCIs.…”
Section: Introductionmentioning
confidence: 99%