Figure 5
From: Effect of solution treatment on the fatigue behavior of an as-forged Mg-Zn-Y-Zr alloy
SEM observations to the surface of the fatigue samples survived after 5 × 106 cycles: (a) as-forged, 100 MPa, showing microcracks initiate along slip bands; (b) T4, 70 MPa, showing microcracks initiate at twin boundaries. It is to be noted that “SB” and “TB” in image (b) denote slip band and twin boundary, respectively.
