A5034086804- High-Temperature Coating Behaviors
- High Entropy Alloys Studies
- Additive Manufacturing Materials and Processes
- High Temperature Alloys and Creep
- Intermetallics and Advanced Alloy Properties
- Advanced materials and composites
- Metal and Thin Film Mechanics
- Microstructure and mechanical properties
- Metal Forming Simulation Techniques
- Shape Memory Alloy Transformations
- Advanced Materials Characterization Techniques
- Metallurgy and Material Forming
- Creativity in Education and Neuroscience
- Microstructure and Mechanical Properties of Steels
- Hydrogen embrittlement and corrosion behaviors in metals
Seoul National University
2016-2022
Korea Institute of Science and Technology
2016-2022
Abstract We report our findings of a detailed investigation into the frequent failures ethylene furnace radiant tubes at petrochemical plant. One failed samples having gas tungsten arc welded joint between Kanthal-APMT(Fe-based) and KHR45A(Ni-based) which had served for 2 years 950 °C as an actual tube was analyzed turned out to have fracture occurred welding interface different metals. The microstructural study revealed that failure induced by massive formation NiAl intermetallic phase...
Impact extrusion is an economical and productive process that can replace the multistage deep drawing for producing rectangular cases. In current work, a three-dimensional finite element analysis of impact commercial purity aluminum alloy (AA1070) was performed to predict loads, material flow, deformed shapes using Hansel-Spittel rheology law, which describes flow stress at various temperatures strain rates. The role parameters such as friction, clearance between punch die, aspect ratio...