Mechanism for In Situ Iron Nanoparticles Formed during Copper Alloy Solidification

Abstract:

In-situ iron nanoparticles can be formed during copper alloy solidification. Here we consider ZCuSn₃Zn₈Pb₆Ni₁FeCo alloy and demonstrate 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 ZCuSn₃Zn₈Pb₆Ni₁ 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.

• Periodical: Advanced Materials Research (Volumes 189-193)
• Pages: 2441-2447
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.189-193.2441
• Online since: February 2011
• Authors: Qiang Song Wang, Zhuo Fei Song, Zai Qiang Feng, Zi Dong Wang
• Keywords: Nanoparticle, Precipitation, Property Analysis, ZCuSn3Zn8Pb6Ni1FeCo

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