Dr. Chan Hee Park
Ph.D., (2010) Materials Science and Engineering, POSTECH
Dissertation: “Globularization Kinetics of Two-Phase Titanium Alloys
and Enhanced Mechanical Properties”
Experience
 2011-present
 2015-2016
 2010-2011
Senior Researcher, Korea Institute of Materials Science
Visiting Scholar, Michigan State University
POSTECH, Postdoctoral Fellow
Achievements
 Development of Flexible Metal (selected as `2015 Top 10 achievement
by National Research Council of Science & Technology).
 Development of novel technology to commercialize nano-structured Ti
and its alloys having super properties (selected as `2015 world’s best technology
by Korea Institute of Materials Science).
 40 SCI papers, 18 patents, 8 technology advice & transfer.
Strategies to Develop High-Performance Titanium and Its Alloys
Time:
April 7th 4:30~5:45pm
Location: GIFT Auditorium 101
Speaker: Dr. Chan Hee Park
(KIMS)
Titanium and its alloys are widely used for defense, aerospace,
biomedical, auto, and energy industries due to their excellent
corrosion resistance, high specific strength, good hightemperature strength, and biocompatibility. Recently, three
novel methods to produce high-performance titanium and its
alloys have been developed and the below key results will be
introduced briefly.
Firstly, for the near-alpha, alpha+beta, near-beta titanium
alloys, new concept to produce nanocrystalline structure
without severe plastic deformation was established, thus
making it possible to fabricate various types of high-strength
titanium alloys using normal rolling, drawing facilities.
Secondly, for the pure titanium, very high strength with
reasonable elongation was achieved by optimizing dislocation
structure. Surprisingly, although the grain size of pure titanium
having optimized dislocation structure was as large as that of
commercially available pure titanium, the strength was 2
times higher.
Lastly, for the beta titanium, new alloys called “flexible metals”
were developed and they showed unusual characteristics such
as ultrahigh flexibility, linear/non-linear elasticity, ultrahigh
strength, ultrahigh formability, and invariant thermal
conductivity.