| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1503583 | Scripta Materialia | 2007 | 4 Pages |
Abstract
Focused ion beam tomography is a new powerful tool to investigate the three-dimensional (3-D) spreading of microcracks. In this study, the interaction between a fatigue microcrack with a grain boundary decorated by carbide precipitates in a directionally solidified Ni base alloy is investigated. The carbide precipitates strongly influence crack growth by initiating geometrically necessary steps in the crack plane. 3-D reconstruction shows that the sub-surface orientation of grain boundaries is an important factor for interpreting crack growth rate at the surface.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
C. Holzapfel, W. Schäf, M. Marx, H. Vehoff, F. Mücklich,