The Effect of CRITSIMA Process Parameters on the Microstructure Evolution and Element Segregation of Semi-Solid CuSn10P1 Alloy Billet

In this paper, based on the as-cast CuSn10P1 alloy. Semi-solid alloy billet was prepared by cold-rolled isothermal treatment strain-induced melting activation (CRITSIMA). The effects of cold-rolling reduction, temperature, and time microstructure semi-solid copper were studied metallographic microscope Image-Pro Plus software. changes primary elements in analyzed briefly a scanning electron (SEM) equipped with energy dispersive spectroscopy (EDS). results show that increase cold rolling average grain diameter decreases gradually, roundness increases first then decreases, liquid fraction remains unchanged. During treatment, temperature extension time, gradually. When reduction is 30%, 900 ℃, 20 min, better can be obtained. diameter, roundness, are 66.45 μm, 0.71, 12.78%, respectively. Sn P diffuse from intergranular to inside during semi-solid.