Fabrication and properties of Mg_(65)Cu_(20)Zn_5Y_(10) porous metallic glass

To improve the plasticity strain of Mg-based metallic glass,Mg65Cu20Zn5Y10 porous metallic glass was fabricated by water cooled copper mold casting-copper core drawing method.The structure,thermal stability and compressive property of the fabricated Mg65Cu20Zn5Y10 porous metallic glass were investigated.The results show that Mg65Cu20Zn5Y10 porous metallic glass with diameter 6mm and length 24mm was fabricated by using the multi-core water cooled copper mold.Compared with Mg-based metallic glass,pore structure has no influence on the thermal stability.40% plastic strain of Mg65Cu20Zn5Y10 porous metallic glass had been achieved under a lower stress.As the fracture micro-morphology of Mg65Cu20Zn5Y10 porous metallic glass being vein pattern,the fracture of this porous metallic glass belongs to ductile fracture.