|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||A-50: Evaluation of Graphene Reinforced Aluminum Prepared by Ball Milling and Selective Laser Melting
||Yachao Wang, Jing Shi, Shiqiang Lu
|On-Site Speaker (Planned)
Graphene possesses many outstanding properties, such as high strengths, light weight, making it an ideal reinforcement for metal matrix composite (MMCs). Meanwhile, fabricating MMCs through laser assisted additive manufacturing (LAAM) has attracted much attention in recent years due to the advantages of low waste, high precision, short production lead time, and high flexibility. In this study, graphene reinforced aluminum is fabricated using selective laser melting. Composite powder is prepared using high-energy ball milling and the effect of ball milling duration on graphene quality is investigated. Moreover, room temperature tensile tests are conducted to evaluate the tensile properties. In order to understand the reinforcing mechanism, scanning electron microscopy (SEM) observations are conducted to investigate the microstructure and fracture surface of obtain composite. It is found that fabrication of GNPs reinforced aluminum using SLM is a viable approach. The obtained composite possesses dense microstructure and significantly enhanced tensile strength.
||Planned: Supplemental Proceedings volume