The influence of partial substitution of Fe by Cu or Al in Fe 75-xSi15Ti10(Cu, Al)x (x = 0 and 4) ultrafine composites on the microstructure and mechanical properties has been investigated. The Fe71Si15Ti10Cu4 ultrafine composite exhibits a favorable microstructural evolution and improved mechanical properties, i.e., large plastic strain of ∼5% and pronounced work hardening characteristics. The mechanical properties of the ultrafine eutectic composite are strongly linked to the length scale heterogeneity and the distribution of the constituent phases.
Bibliographical noteFunding Information:
The authors are grateful to J.H. Han, R. Li, S. Pauly, O. Shuleshova and G. Wang for valuable discussions. This work was supported by the Global Research Laboratory Program of the Korea Ministry of Education, Science and Technology .
All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry