Heterogeneous nucleation effect of in situ iron-rich nanoparticles on grain refinement of copper alloy
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- 作者：Kaixuan Chena ; Xiaohua Chenb ; chenxh@skl.ustb.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Ding Dinga ; Guodong Shia ; Zidong Wanga ; wangzd@mater.ustb.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Copper alloys ; Cast ; Grain refinement ; Heterogeneous nucleation ; Nanoparticles
- 刊名：Materials Letters
- 出版年：2016
- 出版时间：1 April 2016
- 年：2016
- 卷：168
- 期：Complete
- 页码：188-191
- 全文大小：1753 K
文摘
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Fine and equiaxed grains is obtained in cast Cu-10Sn-2Zn-(1~3)Fe-0.5Co (wt.%) alloys.
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Grain diameter was refined to 30~60 μm in Cu-10Sn-2Zn-(1.5~3)Fe-0.5Co (wt.%) alloys.
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Refinement was induced by heterogeneous nucleation effect of iron-rich nanoparticles.
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The effect is enhanced via increment of Fe content and limited by melt recalescence.
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The study clarifies a potential pathway for fabricating bulk nanostructured alloys.