Preparation of Semi-Solid Billet of ZW61 Alloy by Equal Channel Angular Extrusion
Strain induced and melt activated (SIMA) is used for the preparation of semi-solid billet through equal channel angular extrusion (ECAE) as strain induced step in SIMA and completing melt activated step by semi-solid isothermal treatment, by which semi-solid billet with fine spherical grains can be prepared. As comparison, extruded ZW61 alloy is also remelted to the semi-solid state. Furthermore, both of the semi-solid isothermal treatment microstructures in as-cast and extruded ZW61 alloy are discussed. ECAE process is found more potential for semi-solid thixoforming for as-cast ZW61 alloy.
Zhong Wei Gu, Yafang Han, Fu Sheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou
Z.H. Huang et al., "Preparation of Semi-Solid Billet of ZW61 Alloy by Equal Channel Angular Extrusion ", Materials Science Forum, Vols. 610-613, pp. 806-809, 2009