Abstract
High-pressure torsion (HPT) is one of the major severe plastic deformation (SPD) procedures where disk metals generally achieve exceptional grain refinement at ambient temperatures. HPT has been applied for the consolidation of metallic powders and bonding of machining chips whereas very limited reports examined the application of HPT for the fabrication of nanocomposites. An investigation was initiated to evaluate the potential for the formation of a metal matrix nanocomposite (MMNC) by processing two commercial metal disks of Al-1050 and ZK60 magnesium alloy through HPT at room temperature. Evolutions in microstructure and mechanical properties including hardness and plasticity were examined in the processed disks with increasing numbers of HPT turns up to 5. This study demonstrates the promising possibility for using HPT to fabricate a wide range of hybrid MMNCs from simple metals.
Original language | English |
---|---|
Title of host publication | THERMEC 2016 |
Editors | Christof Sommitsch, Mihail Ionescu, Brajendra Mishra, Brajendra Mishra, Ernst Kozeschnik, T. Chandra |
Publisher | Trans Tech Publications Ltd |
Pages | 1068-1073 |
Number of pages | 6 |
ISBN (Print) | 9783035711295 |
DOIs | |
State | Published - 2017 |
Externally published | Yes |
Event | 9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016 - Graz, Austria Duration: May 29 2016 → Jun 3 2016 |
Publication series
Name | Materials Science Forum |
---|---|
Volume | 879 |
ISSN (Print) | 0255-5476 |
ISSN (Electronic) | 1662-9752 |
Conference
Conference | 9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016 |
---|---|
Country/Territory | Austria |
City | Graz |
Period | 05/29/16 → 06/3/16 |
Funding
This work was supported by the NRF Korea funded by MoE under Grant No. NRF-2014R1A1A2057697 (MK); the NRF Korea funded by MSIP under Grant No. NRF-2015R1A2A2A01002387 (BA); and the European Research Council under ERC Grant Agreement No. 267464-SPDMETALS (TGL).
Keywords
- Hardness
- High-pressure torsion
- Metal-matrix composite
- Nanoindentation
- Strain rate sensitivity