Mitigating keyhole pore formation by nanoparticles during laser powder bed fusion additive manufacturing

Minglei Qu,Qilin Guo,Luis I. Escano,Samuel J. Clark,Kamel Fezzaa,Lianyi Chen

Additive Manufacturing Letters（2022）

引用 11|浏览8

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摘要

•Developed a novel approach of using nanoparticles to mitigate keyhole pore.•Identified the underlying mechanisms for keyhole pore mitigation.•Revealed effects of nanoparticles on keyhole collapse and pore evolution.•Eliminated the keyhole fluctuation-induced pore by nanoparticles.

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关键词

Keyhole pore,Additive manufacturing,Laser powder bed fusion,Synchrotron x-ray imaging,Nanoparticle

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