Abstract
This article studies the effect of surface finish on the corrosion behavior of magnesium ZM51/SiC composite. Four different machining processes were employed: single-point diamond turning, wire electrical discharge machining, grinding, and polishing. The machined surface quality was found to have a significant influence on the corrosion behavior of magnesium ZM51/SiC composite. The results showed that, in terms of corrosion current, charge transfer resistance, and double-layer capacitance, the polished and fine-ground specimens have the highest corrosion resistance whereas the rough-ground specimen exhibited the highest corrosion rate. The effects of the various machining-induced defects on corrosion behavior are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 123-138 |
| Number of pages | 16 |
| Journal | Materials and Manufacturing Processes |
| Volume | 19 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Jan 2004 |
Keywords
- Corrosion
- Machining
- Magnesium composite
- Surface condition
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering