Table 2 shows the in situ tensile test results of the specimen at
different slow shot speeds. It can be observed that the ultimatetensile
stress (UTS) of the specimen A without defect band was
higher than that of the specimen B with defect band at each speed
magnitude. As the slow shot speed was decreased, the UTS of
specimen A and B all decreased. This is because, comparing with
specimen A (see Fig. 2), at a certain slow shot speed, the specimen
B had a higher fraction of large and dendritic ESCs and a defect
band of positive porosity.