Influences of reinforcements on crystal growth of matrix alloy in cast composites were investigated, and an advantage of reinforcements on rotating bending fatigue belabor were examined. In the composite specimens, the alpha dendrite is deformed during solidification, and the eutectic structure is distributed around fibers. The solutal diffusion field around dendrite tip governs the tip undercooling. The fatigue strength of composites specimens is influenced by the cluster of reinforcement particles rather than the matrix structure. The clusters of particles introduce the cracks but also interrupt the crack propagation. Therefore, reinforcement particles eventually better the fatigue properties of notched specimens.
|Number of pages||7|
|Journal||Transactions of the Indian Institute of Metals|
|Publication status||Published - Apr 1 2006|
All Science Journal Classification (ASJC) codes
- Metals and Alloys