515484.fig.001a
(a) Annealed specimen
515484.fig.001b
(b) Martempered specimen
515484.fig.001c
(c) Austempered specimen with 10 minutes soaking time
515484.fig.001d
(d) Austempered specimen with 20 minutes soaking time
515484.fig.001e
(e) Austempered specimen with 30 minutes soaking time
Figure 1: Microstructure of different heat-treated samples (×100 μm).