Abstract
Metal matrix composites are being considered for many elevated temperature applications where the matrix microstructure is likely to change with time. The effects of long-term exposure at the elevated temperature on the fracture toughness and fatigue crack growth behavior are examined in a cast particulate reinforced aluminum alloy composite. Significant reductions in fracture toughness and fatigue crack growth threshold were found to occur following extended overaging of the composite. These reductions are explained in terms of microstructural evolution and the change in the matrix flow property.
| Original language | English (US) |
|---|---|
| Title of host publication | First International Conference on Microstructures and Mechanical Properties of Aging Materials |
| Editors | P.K. Liaw, R. Viswanathan, K.L. Murty, E.P. Simonen, D. Frear |
| Publisher | Publ by Minerals, Metals & Materials Soc (TMS) |
| Pages | 475-479 |
| Number of pages | 5 |
| ISBN (Print) | 0873392078 |
| State | Published - 1993 |
| Event | First International Conference on Microstructures and Mechanical Properties of Aging Materials - Chicago, IL, USA Duration: Nov 2 1992 → Nov 5 1992 |
Other
| Other | First International Conference on Microstructures and Mechanical Properties of Aging Materials |
|---|---|
| City | Chicago, IL, USA |
| Period | 11/2/92 → 11/5/92 |
ASJC Scopus subject areas
- Engineering(all)