Abstract
Bulk ultrafine-grained (UFG) materials usually show superior mechanical and physical properties. The development of micro-mechanical behavior is observed after significant changes in microstructure through high-pressure torsion (HPT) processing. This report summarizes recent results on the evolution of small-scale mechanical response examined by the nanoindentation technique on two UFG materials including a high-entropy alloy and an Al-Mg metal matrix nanocomposite processed by HPT. Special emphasis is placed on demonstrating the interrelationship of essential microstructural changes with increasing torsional strain and applying a post-deformation annealing treatment and the evolution of the micro-mechanical behavior in these UFG materials by estimating the strain rate sensitivity.
Original language | English |
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Title of host publication | THERMEC 2018 |
Editors | R. Shabadi, Mihail Ionescu, M. Jeandin, C. Richard, Tara Chandra |
Publisher | Trans Tech Publications Ltd |
Pages | 1495-1500 |
Number of pages | 6 |
ISBN (Print) | 9783035712087 |
DOIs | |
State | Published - 2018 |
Externally published | Yes |
Event | 10th International Conference on Processing and Manufacturing of Advanced Materials, 2018 - Paris, France Duration: Jul 9 2018 → Jul 13 2018 |
Publication series
Name | Materials Science Forum |
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Volume | 941 MSF |
ISSN (Print) | 0255-5476 |
ISSN (Electronic) | 1662-9752 |
Conference
Conference | 10th International Conference on Processing and Manufacturing of Advanced Materials, 2018 |
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Country/Territory | France |
City | Paris |
Period | 07/9/18 → 07/13/18 |
Funding
This work was supported by the NRF Korea funded by MSIP under Grant No. NRF-2015R1A5A1037627 and NRF-2017R1A2B4012255 (JIJ); and the European Research Council under ERC Grant Agreement No. 267464-SPDMETALS (TGL).
Keywords
- High-Pressure Torsion
- Nanoindentation
- Severe Plastic Deformation
- Strain Rate Sensitivity
- Ultrafine Grains