Experience

Kongju National University
• Higher Education
• 100 - 200 Employee
• Assistant Professor

  • Apr 2018 - Present


Oak Ridge National Laboratory

• United States
• Research Services
• 700 & Above Employee

• Postdoctoral Research Associate

  • Mar 2016 - Dec 2017

  Post-Doctoral Research Associate, Neutron Imaging at Oak Ridge National Laboratory (ORNL)'s High Flux Isotope Reactor (HFIR) and Spallation Neutron Source (SNS), Chemical and Engineering Materials Division, Oak Ridge National Laboratory. Currently, my research at ORNL mainly focuses on multi-scale characterization of additively manufactured components (particularly Inconel 718) using neutron imaging and neutron diffraction techniques at spallation neutron source (SNS), such as… Show more Post-Doctoral Research Associate, Neutron Imaging at Oak Ridge National Laboratory (ORNL)'s High Flux Isotope Reactor (HFIR) and Spallation Neutron Source (SNS), Chemical and Engineering Materials Division, Oak Ridge National Laboratory. Currently, my research at ORNL mainly focuses on multi-scale characterization of additively manufactured components (particularly Inconel 718) using neutron imaging and neutron diffraction techniques at spallation neutron source (SNS), such as, microstructural evolution, crystalline plane orientation, single crystal quality, and residual stress. Show less Post-Doctoral Research Associate, Neutron Imaging at Oak Ridge National Laboratory (ORNL)'s High Flux Isotope Reactor (HFIR) and Spallation Neutron Source (SNS), Chemical and Engineering Materials Division, Oak Ridge National Laboratory. Currently, my research at ORNL mainly focuses on multi-scale characterization of additively manufactured components (particularly Inconel 718) using neutron imaging and neutron diffraction techniques at spallation neutron source (SNS), such as… Show more Post-Doctoral Research Associate, Neutron Imaging at Oak Ridge National Laboratory (ORNL)'s High Flux Isotope Reactor (HFIR) and Spallation Neutron Source (SNS), Chemical and Engineering Materials Division, Oak Ridge National Laboratory. Currently, my research at ORNL mainly focuses on multi-scale characterization of additively manufactured components (particularly Inconel 718) using neutron imaging and neutron diffraction techniques at spallation neutron source (SNS), such as, microstructural evolution, crystalline plane orientation, single crystal quality, and residual stress. Show less



The University of Tennessee

• United States
• Higher Education
• 1 - 100 Employee

• Graduate Research Assistant

  • Aug 2011 - Mar 2016

  I contributed to preparing a proposal of a DOE project (DOE: DE-FE-0024054), entitled “Computational Design and Performance Prediction of Creep-Resistant Ferritic Superalloys” (total funding amount: $ 625 K for the Two-Year Period of Performance, 10/01/2014-09/31/2016), and am currently being involved in the project, focusing on the fabrication of alloys and studies on the creep properties, microstructural characterization, and understanding of the creep deformation mechanisms, using… Show more I contributed to preparing a proposal of a DOE project (DOE: DE-FE-0024054), entitled “Computational Design and Performance Prediction of Creep-Resistant Ferritic Superalloys” (total funding amount: $ 625 K for the Two-Year Period of Performance, 10/01/2014-09/31/2016), and am currently being involved in the project, focusing on the fabrication of alloys and studies on the creep properties, microstructural characterization, and understanding of the creep deformation mechanisms, using transmission electron microscopy (TEM), scanning-electron microscopy (SEM), atom probe tomography (APT), and advanced neutron diffraction (ND). •I have carried out in-situ loading experiments using neutron diffraction at Los Alamos National Laboratory and Oak Ridge National Laboratory (United State America) to understand the micro-deformation behavior between constitutive materials during deformation. I conducted the crystal-plasticity finite element model to simulate the experimental in-situ neutron results. •I joined a DOE project (DOE: DE-FE0005868) in Aug. 2011, entitled “Computational Design of Creep-Resistant Alloys and Experimental Validation in Ferrtic Superalloys” (total funding amount: $ 1,500 K for the Four-Year Period of Performance, 10/01/2010-12/31/2014), and focused on the alloy design/development, microstructural characterization, and creep deformation mechanisms, using SEM, TEM, and advanced neutron/synchrotron diffraction. •Teaching MSE 201 (Spring, 2014), Introduction of Materials Science and Engineering (lap tour to introduce lap facilities and experimental procedure) •Dissertation Topic: Microstructure and Creep Deformation Behavior of a Hierarchical-Precipitate Strengthened Ferritic Alloy with Extream Creep Resistance (http://trace.tennessee.edu/utk_graddiss/3666/) Show less I contributed to preparing a proposal of a DOE project (DOE: DE-FE-0024054), entitled “Computational Design and Performance Prediction of Creep-Resistant Ferritic Superalloys” (total funding amount: $ 625 K for the Two-Year Period of Performance, 10/01/2014-09/31/2016), and am currently being involved in the project, focusing on the fabrication of alloys and studies on the creep properties, microstructural characterization, and understanding of the creep deformation mechanisms, using… Show more I contributed to preparing a proposal of a DOE project (DOE: DE-FE-0024054), entitled “Computational Design and Performance Prediction of Creep-Resistant Ferritic Superalloys” (total funding amount: $ 625 K for the Two-Year Period of Performance, 10/01/2014-09/31/2016), and am currently being involved in the project, focusing on the fabrication of alloys and studies on the creep properties, microstructural characterization, and understanding of the creep deformation mechanisms, using transmission electron microscopy (TEM), scanning-electron microscopy (SEM), atom probe tomography (APT), and advanced neutron diffraction (ND). •I have carried out in-situ loading experiments using neutron diffraction at Los Alamos National Laboratory and Oak Ridge National Laboratory (United State America) to understand the micro-deformation behavior between constitutive materials during deformation. I conducted the crystal-plasticity finite element model to simulate the experimental in-situ neutron results. •I joined a DOE project (DOE: DE-FE0005868) in Aug. 2011, entitled “Computational Design of Creep-Resistant Alloys and Experimental Validation in Ferrtic Superalloys” (total funding amount: $ 1,500 K for the Four-Year Period of Performance, 10/01/2010-12/31/2014), and focused on the alloy design/development, microstructural characterization, and creep deformation mechanisms, using SEM, TEM, and advanced neutron/synchrotron diffraction. •Teaching MSE 201 (Spring, 2014), Introduction of Materials Science and Engineering (lap tour to introduce lap facilities and experimental procedure) •Dissertation Topic: Microstructure and Creep Deformation Behavior of a Hierarchical-Precipitate Strengthened Ferritic Alloy with Extream Creep Resistance (http://trace.tennessee.edu/utk_graddiss/3666/) Show less



The Sejong University

• Graduate Research Assistant

  • Jan 2008 - Jan 2010

  Korea. •Alloy fabrication using arc-suction, induction-melting, and melt-spinning facilities. •Characterization technique for the analysis and study of microstructural influence by alloying design on mechanical properties of Mg and Ti-based eutectic composites. SEM, UTM, TEM and XRD techniques are used for the study of the microstructure and mechanical properties of eutectic composites. •Thesis title: Mechanical behaviors of Ti- and Mg-based bimodal eutectic composites.; 1… Show more Korea. •Alloy fabrication using arc-suction, induction-melting, and melt-spinning facilities. •Characterization technique for the analysis and study of microstructural influence by alloying design on mechanical properties of Mg and Ti-based eutectic composites. SEM, UTM, TEM and XRD techniques are used for the study of the microstructure and mechanical properties of eutectic composites. •Thesis title: Mechanical behaviors of Ti- and Mg-based bimodal eutectic composites.; 1. Deformation behavior of metals at room and elevated temperatures, such as compressive and tensile deformation, and creep resistance. Show less Korea. •Alloy fabrication using arc-suction, induction-melting, and melt-spinning facilities. •Characterization technique for the analysis and study of microstructural influence by alloying design on mechanical properties of Mg and Ti-based eutectic composites. SEM, UTM, TEM and XRD techniques are used for the study of the microstructure and mechanical properties of eutectic composites. •Thesis title: Mechanical behaviors of Ti- and Mg-based bimodal eutectic composites.; 1… Show more Korea. •Alloy fabrication using arc-suction, induction-melting, and melt-spinning facilities. •Characterization technique for the analysis and study of microstructural influence by alloying design on mechanical properties of Mg and Ti-based eutectic composites. SEM, UTM, TEM and XRD techniques are used for the study of the microstructure and mechanical properties of eutectic composites. •Thesis title: Mechanical behaviors of Ti- and Mg-based bimodal eutectic composites.; 1. Deformation behavior of metals at room and elevated temperatures, such as compressive and tensile deformation, and creep resistance. Show less