Abstract
Room-temperature tensile properties of AZ31 alloy have significantly been improved when reinforced with carbon nanotube via ingot metallurgy process. However, high-temperature (up to 250 °C) elongation-to-failure tensile test of the developed nanocomposite revealed a considerable softening in the AZ31 alloy matrix accompanied by an incredible ductility increment (up to 132%). Microstructural characterization of the fractured samples revealed that the dynamic recrystallization process has induced a complete recrystallization in the AZ31 alloy at a lower temperature (150 °C) followed by substantial grain growth at a higher temperature used in this study. Fractography on the fractured surfaces revealed that the room-temperature mixed brittle-ductile modes of fracture behavior of AZ31 alloy have transformed into a complete ductile mode of fracture at high temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 2984-2991 |
| Number of pages | 8 |
| Journal | Journal of Materials Engineering and Performance |
| Volume | 23 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2014 |
Bibliographical note
Funding Information:The authors would like to acknowledge the support provided by the Deanship of Scientific Research (DSR) at King Fahd University of Petroleum and Minerals (KFUPM) for funding this work through Project No. IN100013.
Keywords
- carbon nanotube
- high-temperature properties
- nanocomposite
- plastic deformation
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering