Dr. Yoon-Seok Choi Research Associate

Educational Background  1994 - 1998 B.S., Metallurgical Engineering                       Department of Metallurgical Engineering                       Sungkyunkwan University                       Republic of KOREA 1998 - 2000  M.S., Advanced Materials Engineering                       Department of Advanced Materials Engineering                       Sungkyunkwan University                       Republic of KOREA 2000 - 2004  Ph.D., Advanced Materials Engineering        Department of Advanced Materials Engineering        Sungkyunkwan University        Republic of KOREA

Research Interests   

• Corrosion monitoring sensor.

• Electrochemical property characterization of coated materials using electrochemical impedance spectroscopy (EIS).

• Electrochemical property characterization for battery and fuel cell application.

• Cathodic protection criteria and application.Environmentally assisted cracking (SCC, CFC, HEC).

Current Research  

• Development of PEM fuel cell electrodes using pulse electrodeposition.

• Development of novel process for plating nanostructured ternary alloys and composites for replacement of cadmium

List of Publications

1.   1.      Y.S. Choi and J.G. Kim, “Aqueous corrosion behavior of weathering steel and carbon steel in acid-chloride environments,” Corrosion 56 (2000): 1202.

2.      Y.S. Choi, S.H. Ahn, J.G. Kim and C.G. Mckamey, “Effect of chrominum on the corrosion behavior of iron aluminides in thiosulfate-chloride solution,” J. of Materials Science 36 (2001): 5575.

3.      S.H. Ahn, Y.S. Choi, J.G. Kim and J.G. Han, “A study on corrosion resistance of PVD Cr-N coated steels by electrochemical method,” Surface Coatings & Technology 150 (2002): 319.

4.      Y.S. Choi and J.G. Kim, “Investigation of passivity and its breakdown of Fe₃Al-Cr-Mo intermetallics in thiosulfate-chloride solution,” Materials Science and Engineering A 333 (2002): 336.

5.      S.H.Ahn, J.H. Yoo, Y.S. Choi, J.G. Kim and J.G. Han, “Corrosion behavior of PVD-grown WC-(Ti1-xAlx)N films in a 3.5% NaCl solution,” Surface Coatings & Technology 162 (2003): 212.

6.      S.J. You, Y.S. Choi, J.G. Kim, H.J. Oh and C.S. Chi, “Stress corrosion cracking properties of environmentally friendly unleaded brasses containing bismuth in Mattsson’s solution,” Materials Science and Engineering A 345 (2003): 207.

7.      J.G. Kim, Y.S. Choi, H.D. Lee and W.S. Chung, “Effect of flow velocity, pH and temperature on galvanic corrosion in alkaline-chloride solutions,” Corrosion 59 (2003): 121.

8.      J.G. Kim, Y.S. Choi, J.H. Yeo, S.K. Kim, Y.J. Kim and J.H. Joo, “Effect of Al on the corrosion characteristics of Mg-4Ni-xAl alloys,” Corrosion 59 (2003): 228.

9.      J.G. Kim, Y.S. Choi, S.J. Yoo and J.J. Shim, “Effect of Co on the corrosion resistance of 1% Cr-based steels in a simulated underground environment,” J. of Materials Science Letters 22 (2003): 619.

10.  Z.T. Park, Y.S. Choi, J.G. Kim and J.H. Boo, “Electrochemical reliability of plasma-polymerized cyclohexane films deposited on copper in microelectronic devices,” J. of Materials Science Letters 22 (2003): 945.

11.  Y.S. Choi and J.G. Kim, “Stress corrosion cracking and hydrogen embrittlement cracking of welded weathering steel and carbon steel in a simulated acid rain environment,” Materials Science & Technology 19 (2003): 1737.

12.  Y.S. Choi, J.J. Shim and J.G. Kim, “Effect of Co and W on the corrosion behavior of 1% Cr steel in flowing synthetic seawater,” Materials and Corrosion 55 (2004): 298.

13.  M.K. Chung, Y.S. Choi, J.G. Kim, Y.M. Kim and J.C. Lee, “Effect of the number of ECAP pastime on the electrochemical properties of 1050 Al alloys,” Materials Science and Engineering A 366 (2004): 282.

14.  Y.S. Choi and J.G. Kim, “Effects of cyclic stress and insulation on the corrosion fatigue properties of thermally insulated pipeline,” Materials Science and Engineering A 384 (2004): 47.

15.  Y.S. Choi and J.G. Kim, “A galvanic sensor for monitoring the corrosion damage of buried pipelines: Part. 1. Electrochemical tests to determine the correlation of probe current to actual corrosion damage in synthetic groundwater,” Corrosion 61 (2005): 293.

16.  Y.S. Choi, J.J. Shim and J.G. Kim, “Corrosion behavior of low alloy steels containing Cr, Co and W in synthetic potable water,” Materials Science and Engineering A 385 (2004): 148.

17.  Y.S. Choi, J.J. Shim and J.G. Kim, “Effects of Cr, Cu, Ni and Ca on the corrosion behavior of low carbon steel in synthetic tap water,” J. of Alloys and Compounds 391 (2005): 162.

18.  Y.S. Choi, J.J. Shim and J.G. Kim, “Effects of Cr, Co, Cu, Ni and Ca on the corrosion behavior of low carbon steel in synthetic groundwater,” Corrosion 61 (2005): 490.

 19. Z.T. Park, Y.S. Choi, J.G. Kim and L. Chung, “Development of a galvanic sensor system for detecting the corrosion damage of the steel embedded in concrete structure: Part 2. Tests in concrete to confirm the correlation between galvanic current and actual corrosion damage,” Cement and Concrete Research 35 (2005): 1814.