Before transforming to pearlite, this material phases through the two-phase zone (yellow) between austenite and ferrite. In cooling through this zone, ferrite is precipitated on the austenite grain ...

(a) Small austenite grain size leading to plates of ferrite growing in parallel formations. (b) Large austenite grain size with plates of ferrite nucleating intragranularly on non-metallic inclusions ...

For solid state metallurgists the austenite-ferrite phase transformation in steels remains the most challenging and inspiring topic in the field. As it is our principal tool to create desired ...

THE lattice parameters of martensite and austenite in steels (carbon content varying from 0.57 to 1.74 per cent) have been extensively studied; but considerable discrepancies exist in the values ...

3.14a), and rely on diffusion. Pearlite nuclei occur on austenite grain boundaries, but it is clear that they can also be associated with both pro-eutectoid ferrite and cementite. In commercial steels ...

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The three components in equilibrium at this temperature are Austenite, g, with the composition Fe - 0.77 wt % C, Ferrite, a, with the composition Fe - 0.22 wt % C, and the compound Fe3C with the ...