In Situ Formation of Particle Reinforced Al Matrix Composite by Selective Laser Melting of Al/Fe2O3 Powder Mixture
In Situ Formation of Particle Reinforced Al Matrix Composite by Selective Laser Melting of Al/Fe2O3 Powder Mixture
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DOI：
10.1002/adem.201100151
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发表时间：
2012-02-01
影响因子：
3.6
通讯作者：
Hao, Liang
中科院分区：
文献类型：
--
作者：
Dadbakhsh, Sasan;Hao, Liang
这项工作提出了一种新颖的原位反应方法，通过使用选择性激光熔化（SLM）从 Al/5%wt% Fe2O3 粉末混合物生产铝基复合材料。研究发现，SLM工艺不仅能够生产三维零件，而且能够激活粉末混合物中的原位反应，产生主要由Al基体中的氧化铝（Al2O3）和铁组合（例如Fe2+Al2O4）组成的颗粒。这些颗粒（作为增强材料）可以在受控条件下均匀分布，并具有良好的颗粒/基体界面。
This work presents a novel in situ reaction approach to produce Al matrix composites from a powder mixture of Al/5?wt% Fe2O3 by using selective laser melting (SLM). It is found that the SLM process not only is able to produce three-dimensional parts, but also is capable of activating an in situ reaction in the powder mixture, producing particles mainly from alumina (Al2O3) and iron combinations (such as Fe2+Al2O4) in Al matrix. These particles (as reinforcements) can be distributed uniformly with a good particle/matrix interface under controlled conditions.