17.01.2015 Views

Medium Mn TRIP-assisted steels

Medium Mn TRIP-assisted steels

Medium Mn TRIP-assisted steels

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Microstructural modification<br />

bainitic ferrite<br />

polygonal ferrite<br />

<strong>TRIP</strong>-aided bainitic ferrite <strong>steels</strong><br />

AM <strong>TRIP</strong> <strong>steels</strong><br />

bainitic ferrite<br />

austenite<br />

austenite<br />

austenite<br />

Metastable austenitic steel (Fe-C-Ni-Cr-<strong>Mn</strong>)<br />

High <strong>Mn</strong> <strong>TRIP</strong> steel (>10wt%)<br />

P, Cu for ferrite strengthening<br />

Larger γ fraction with <strong>Mn</strong> (4~8wt%)

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