Analysis and Nanomold Design for Aluminum Nanoimprinting

Te-Hua Fang ； Chien-Hung Liu ； Deng-Maw Lu ； Li-Min Kuo

《Smart Science》 2卷4期 (2014/11) Pp. 168-172

https://doi.org/10.6493/SmartSci.2014.260

並列摘要

A nano-forging process based on the potential function of an embedded atom method (EAM) and mechanism, for pure aluminum samples, was studied using molecular dynamic (MD) simulation. The effects of forging temperature and velocity were evaluated in terms of molecular trajectory, internal energy, and a radial distribution function. The simulation results clearly show that the internal energy exerted by the workpiece during the forging process rises with a decrease of forging temperature, and an increase of forging velocity also raises the internal energy. During the forging process, a special atomic structure in the (011) and (01 1 ) slip planes was observed that represents the site of dislocation generation and growth nucleation. When severe plastic deformation occurs, the density of the workpiece changes. The forged workpiece has similar distributions of atomic density after loading at different forging temperatures and velocities.

並列關鍵字

Nanoforging ； Elastic recovery ； Molecular dynamics simulation