A5038502920- Microstructure and mechanical properties
- Aluminum Alloys Composites Properties
- Advanced materials and composites
- Metal and Thin Film Mechanics
- Metallurgy and Material Forming
- High Entropy Alloys Studies
- Aluminum Alloy Microstructure Properties
- Magnesium Alloys: Properties and Applications
- High-Temperature Coating Behaviors
- High-Velocity Impact and Material Behavior
- Metal Forming Simulation Techniques
- Microstructure and Mechanical Properties of Steels
- Additive Manufacturing Materials and Processes
- Metal Alloys Wear and Properties
- Surface Treatment and Residual Stress
- Advanced Surface Polishing Techniques
- Intermetallics and Advanced Alloy Properties
- Electron and X-Ray Spectroscopy Techniques
- Advanced Welding Techniques Analysis
- Advanced Materials Characterization Techniques
- Titanium Alloys Microstructure and Properties
- Advanced Electron Microscopy Techniques and Applications
- Boron and Carbon Nanomaterials Research
- Additive Manufacturing and 3D Printing Technologies
- Perovskite Materials and Applications
Oregon State University
2017-2024
Nosov Magnitogorsk State Technical University
2021
Fukuoka Institute of Health and Environmental Sciences
2020
Hanyang University
2012-2018
University of Southern California
2009-2018
Southern California University for Professional Studies
2005-2015
North Carolina State University
2015
Monash University
2015
Anyang University
2015
Osaka Prefecture University
2015
Severe plastic deformation (SPD) is effective in producing bulk ultrafine-grained and nanostructured materials with large densities of lattice defects. This field, also known as NanoSPD, experienced a significant progress within the past two decades. Beside classic SPD methods such high-pressure torsion, equal-channel angular pressing, accumulative roll-bonding, twist extrusion, multi-directional forging, various continuous techniques were introduced to produce upscaled samples. Moreover,...
Ultrafine-grained and heterostructured materials are currently of high interest due to their superior mechanical functional properties. Severe plastic deformation (SPD) is one the most effective methods produce such with unique microstructure-property relationships. In this review paper, after summarizing recent progress in developing various SPD for processing bulk, surface powder materials, main structural microstructural features SPD-processed explained including lattice defects, grain...
Ultrafine-grained materials are attractive for achieving superplastic elongations provided the grains reasonably stable at elevated temperatures. Since strain rate in superplasticity varies inversely with grain size raised to a power of two, reduction submicrometer level leads occurrence flow within region high rates >10−2 s−1. This paper tabulates and examines various reports ultrafine-grained materials. It is shown that these exhibit many characteristics similar conventional alloys...
Abstracts The microstructural and mechanical properties of an ultrafine‐grained (UFG) Al–Zn alloy processed by high‐pressure torsion (HPT) are investigated using depth‐sensing indentations, focused ion beam, scanning electron microscopy transmission microscopy. Emphasis is placed on the microstructure effects grain boundaries at room temperature. experiments show formation Zn‐rich layers Al/Al that enhance role boundary sliding leading to unique plastic behavior in this UFG material....
The ultimate strength of materials is reached at strain rates approaching the Debye frequency, when deformation time atomic scale approaches for atoms to move away from equilibrium their extreme separation position (~5.5 × 1013 s−1 iron). We conducted high-power pulsed laser experiments on single, poly-, and nanocrystalline iron, generating tensile pulses with 106 – 107 s−1, nanosecond durations. find iron strengths varying between 5 10 GPa, a factor ten higher than static strength....
The present study unraveled the defining role of small silicon (Si) addition (5 atomic %) in dramatically altering plasticity mechanisms, grain refinement and hardening response a non-equiatomic CoCrMnNi multi-principal element alloy (MPEA) during high-pressure torsion (HPT) processing. Both Si-free Si-added MPEAs had face-centered cubic (FCC) structure were subjected to quasi-constrained HPT processing at 6 GPa pressure different number turns (0.5 5). Microstructure evolution was studied...
Advanced structural materials are expected to display significantly improved mechanical properties and this may be achieved, at least in part, by refining the grain size submicrometer or nanocrystalline range. This report provides a detailed summary of role metals. The effect on high temperature behavior development superplasticity is illustrated using deformation mechanism maps exceptional strength through refinement hardening low temperatures also discussed. It shown that boundary sliding,...