The induced phenomena caused by rolling or sliding action of a nano-particle on the work were considered in this study. The analysis was done by the molecular dynamics method.The effects on the removals of work, the roughness induced by nano-particle and the thickness of the damage layer caused by the depth of indentation, the shape of particle and the adhesive strength btween the particle and the work will also be discussed.
The result shows that the particle in rolling process removed atoms easier than in sliding process. The removals of work in the process of rolling depend on the adhesive strength between the nano-particle and the work. More powerful of the adhesive strength will increase the amount of removal. But, the adhesive strength was not the only factor in the process of sliding. The rake angle between the nano-particle and the work was the important factor, too. In order to remove the atoms during sliding process, not only the adhesive strength must be strong enough but also the rake angle must be small enough.
The increase of the strength between the particle in the shape of ball and the work will cause more amorphous atoms in both rolling and sliding process. The thickness of the damage layer of the work surface was also affected by the rake angle. But the roughness was little affected by the adhesive strength between the nano-particle and the work.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0714104-111805 |
| Date | 14 July 2004 |
| Creators | Liu, Hsuan-yu |
| Contributors | none, none, none, Yaw-Terng Su |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0714104-111805 |
| Rights | unrestricted, Copyright information available at source archive |
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