Influence of hot impact deformation on graphitization in white cast iron

The effect of rolling on graphitization characteristics of strip cast Fe-C-Si white cast iron

“…According to the results of prelimihas also been investigated. [5,6,7] Yamamoto et al [5] reported nary experiments in this study, obvious edge cracking that the graphitization of white iron samples did not occur occurred when the thickness of the strip was reduced by when the thickness reduction was less than 70 pct, but drastic more than 32 pct, so the rolling reductions studied in this graphitization happened almost instantly with a larger thickinvestigation range from 0 to 32 pct. ness reduction ratio over 70 pct.…”

“…This process of rolling and graphitization is illustrated schematically in Figure showing stringers of temper graphite particles, which should originate along the deformation cracks in the interdendritic 12(c). (3) phase interface between an inclusion and matrix, [10] Graphitization Time, and the Density of Graphite Particles of (4) preformed graphite nuclei during solidification, [17] and White Iron Block Specimens as a Function of Thickness (5) lattice distortions or heterophase fluctuations. [18] Reduction Based on the results in this study, the cracks of continuous the as-cast equiaxed cell zone.…”

“…After an appropriate heatto the breakage of covalent Fe-C bonds. [5] According to ing time, the specimens were air-cooled to stop the graphitization reaction.…”

“…EXPERIMENTAL PROCEDURES Previous investigations have reported on the feasibility of Experimental materials (Table I) were melted in a high promoting first-stage graphitization by predeformation. [3][4][5][6][7] frequency furnace and were then cast into a UDTR strip Plenard and Formont [3] confirmed that high intensity comcaster and a Y-shaped metal mold (50 ϫ 100 ϫ 180 mm). pressive prestressing of white cast iron by special punches Figure 1 schematically depicts the setup of the strip caster reveals more and finer graphite nodules in the stress-affected in which the two rollers were made of a Cu-1 wt pct Cr zone in the final structure after graphitization.…”