- Microstructure and Mechanical Properties of Steels
- High Temperature Alloys and Creep
- Metal Alloys Wear and Properties
- Hydrogen embrittlement and corrosion behaviors in metals
- Welding Techniques and Residual Stresses
- Additive Manufacturing Materials and Processes
- Advanced Materials Characterization Techniques
- Nuclear Materials and Properties
- High Entropy Alloys Studies
- Microstructure and mechanical properties
- Intermetallics and Advanced Alloy Properties
- Fusion materials and technologies
- Fatigue and fracture mechanics
- Advanced materials and composites
- Metal and Thin Film Mechanics
- High-Temperature Coating Behaviors
- Metallurgy and Material Forming
- Aluminum Alloy Microstructure Properties
- Additive Manufacturing and 3D Printing Technologies
- Aluminum Alloys Composites Properties
- Non-Destructive Testing Techniques
- Engineering Applied Research
- Advanced Welding Techniques Analysis
- Material Properties and Failure Mechanisms
- Fire effects on concrete materials
Changwon National University
2015-2024
Korea Institute of Materials Science
2008-2024
Hyundai Steel (South Korea)
2024
Jusung Engineering (South Korea)
2022
Doosan Heavy Industries & Construction (South Korea)
2016
Chinese Academy of Sciences
2012
Pusan National University
2010
Pohang Iron and Steel (South Korea)
2004-2008
Korea Advanced Institute of Science and Technology
2001-2002
Steel is the global backbone material of industrialized societies, with more than 1.8 billion tons produced per year. However, steel-containing structures decay due to corrosion, destroying annually 3.4% (2.5 trillion US$) gross domestic product. Besides this huge loss in value, a solution corrosion problem at minimum environmental impact would also leverage enhanced product longevity, providing an immense contribution sustainability. Here, we report leap forward toward aim through...
Abstract The degradation of mechanical properties caused by grain coarsening or the formation brittle phases during welding reduces longevity products. Here, we report advances in weld quality ultra-high strength steels utilizing Nb and Cr instead Ni. Sole addition Cr, as an alternative to Ni, has limitations developing fine microstructure, while it is revealed that coupling effects additions make a finer interlocking microstructures with higher fraction retained austenite due decrease...