Abstract
A study has been made of the striations and fissures developed in the aluminum alloy 2024-T3 during fatigue crack growth. Fissures were found to form on inclined facets. They were uniformly spaced as the result of a shielding process. Striation spacings were in accord with da/dN values at the higher levels of ΔK investigated, but at low ΔK levels striation spacings were larger than the corresponding da/dN values. The percentage of the fracture surface containing striations varied with the ΔK level, ranging from less than 1% at low ΔK levels to 80% at higher ΔK levels. The reason for the discrepancy between the spacing of striations and the corresponding da/dN values is discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 397-400 |
| Number of pages | 4 |
| Journal | Materials Science Forum |
| Volume | 567-568 |
| Publication status | Published - Feb 1 2008 |
| Externally published | Yes |
| Event | 5th International Conference on Materials Structure and Micromechanics of Fracture, MSMF-5 - Brno, Czech Republic Duration: Jun 27 2007 → Jun 29 2007 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering