Microstructure and properties of ZcuSn3Zn8Pb6NiFeCo alloy

摘要

In-situ iron nanoparticles can be formed during copper alloy solidification.Here we consider ZCuSn3Zn8Pb6NilFeCo alloy.It is noted that high undercooling is the motive power of nanoparticles during solidification,which would act as heterogeneous nuclei to achieve outstanding contribution for grain refinement compared to ZCuSn3Zn8Pb6Nil alloy.Convection of the melt inhibit the growth of nanoparticles by way of prohibitting the deposition of iron atoms on the surface.This technique offer new enlightenment for the control of in-situ nanoparticles formed during alloy solidification,and also opens the door to a new class of dispersed nanoparticles strengthened materials.