Table 3.

SCG parameters determined according to the Munz and Fett statistical approach for polished specimens loaded in cyclic fatigue.

Group	Y	KIc (MPa·m1/2)	n	$A\left(\frac{\mathrm{m}/\text{cycle}}{{(\mathrm{M}\mathrm{P}\mathrm{a}·{\mathrm{m}}^{1/2})}^{\mathrm{n}}}\right)$
2 Hz	1.20	0.90	21.7	4.99×10−5
10 Hz	1.19	0.93	19.1	7.39×10−6