Fig. 4. Blisters on the heat-treated casting surface in (a) a cold area (area 2E in Fig. 3) and (b) a hot area (area 10G in Fig. 3).
Fig. 4. Blisters on the heat-treated casting surface in (a) a cold area (area 2E in Fig. 3) and (b) a hot area (area 10G in Fig. 3).