Materials Korea A comprehensive. Materials research institute leading in materials technology.

Materials Testing & Reliability Division

Materials Testing & Reliability Division

Head of Department
Yang, Won-jon

Department Introduction

Materials Analysis & Evaluation Department serves as the internationally-accredited testing/calibration laboratory for measurements in the industrial and material science fields. We develop measurement methods for the mechanical properties and chemical analysis, as well as morphological characterization of materials from the mesoscale to the atomic scale. FACE (Failure Analysis Center) for investigation of the causes of damage and fail has strengthened the industrial competitiveness and is developing advanced evaluation technologies for materials and components.

+82-55-280-3608

Major Activities

Technical supporting for forensic analysis and investigation of failed components through FACE (Failure Analysis Center) management.
Technical supporting of materials and components testing for aerospace.
Generates and disseminates reliable mechanical property data.
Technical supporting of dynamic tensile tests and crash tests.
Advanced characterization using electron microscopes: 8 papers published (including high-impact journals such as Nature Nanotechnology, Nano Letters), 5 Software programs registered, 3 technical workshops for users of electron microscopy.

Major Research Area

Analyze the causes of damage and failure of materials and components.
Characterization and evaluation for mechanical and surface properties of materials.
Development of tensile testing method at high strain rates.
Mechanical testing under extreme conditions.
In-situ deformation EBSD analysis and crystal plasticity FE simulations in metals.
Direct imaging of electric and magnetic materials properties of oxides by electron phase analysis in transmission electron microscopy.
Characterization and assessment for chemical properties and microstructure of materials.

Future Research Plan

  • Technical Support for Failure Analysis of Materials and Components.
  • Development of testing methods for the mechanical properties of materials under extreme environmental and operating conditions.
  • Expansion of certificated testing and evaluation services for aerospace and automobile materials, and improvement of international recognition.
  • Advanced phase contrast imaging technique including electron holography and differential phase contrast method
  • In-situ deformation and heating EBSD analysis in Ni superalloys and Ti alloys

Major R&D Activities

Construction of horizontal type servo-hydraulic crash testing machine

  • To evaluate the collision characteristics of high impact shock absorbing material, a horizontal type servo-hydraulic crash testing machine was built to improve the reliability and accuracy of measurement data. It is possible to evaluate collision characteristics for large specimens and components.
  • Maximum launching speed of carrier is 17 m/s
  • Reliability of measurement data is higher and maintenance is easier than drop weight testing machine.
Servo-hydraulic crash testing machine
sFEA simulation for crash test evaluation

Development of Characterization Methodologies and Modeling for Advanced Materials Design

  • Theoretical calculation to predict and understand materials property and its mechanism based on electronic structure and microstructure. This technique effectively improve the way to study materials by combining characterization technique.
  • Atomic scale imaging analysis and electron energy loss spectroscopy of ferroelectricity in the PbTiO3/SrTiO3 superlattice thin film
  • In-situ EBSD analysis related with crystal plasticity FE simulation in CP titanium
  • Unveiling reversible phase modulation and hydrogen storage of oxide thin film based on the first-principle calculation and high resolution transmission electron microscopy
(a) Analysis of tetragonality and Ti displacement for each unit cells in the HAADF-STEM image of the SrTiO3/PbTiO3 interface. (b) Calculated Ti-L2,3 spectra with the energy splitting value from the change of tetragonality in PbTiO3 layer.