3. The figure shows the Fe-Fe3C phase diagram. Consider 3.0 kg of austenite containing 1.2 wt % C ,
申論題內容
(a) make schematic sketches of the
microstructure that would be observed
for conditions of very slow cooling at
the following temperatures: 1000°C,
728°C, and 726°C. Label all phases
and indicate their approximate
compositions.
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