In this study, a new alloy material Mg-Zn-Zr (ZK60) was designed for the connecting rod. It found that blanks sampled along vertical direction of an extruded bar crack during roll forging process. The microstructure and precipitates were observed analyzed using optical microscope (OM), scanning electron (SEM) x-ray diffraction (XRD). result showed Zn, Zr, MnZn2 elongated extrusion direction. me...