Figure 17.
Morphological structures of austempered ductile iron specimens after partitioning at (a) 200 °C for 10 min, (b) 300 °C for 10 min, (c) 200 °C for 30 min, (d) 300 °C for 30 min, (e) 200 °C for 60 min, and (f) 300 °C for 60 min [42].
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