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STAFF and MEMBERS (in 2021)

Professor:

Takumi HARUNA (Ph.D.) 
Department of Chemistry and Materials Engineering
Faculty of Chemistry, Materials and Bioengineering

 E-mail: haruna (at) kansai-u.ac.jp

Assistant Professor:

Youhei HIROHATA (Ph.D.)
Department of Chemistry and Materials Engineering
Faculty of Chemistry, Materials and Bioengineering

E-mail: hirohata (at) kansai-u.ac.jp

Students:

Doctor(3rd): 1,  
Master(2nd): 2,  
Master(1st): 6,  
Under graduate 4th: 8

INTRODUCTION

Most of metallic materials are utilized in their specific environments without exception, and then they react with the environment.  The reaction, termed as “corrosion”, is big issue in most of manufacture industries because metallic machines and device degrade to failure and be fractured by corrosion.  Therefore, there are quite large social demands to prevent corrosion and to train the persons who have knowledge about corrosion. 

Our laboratory, therefore, offers the education to you and make the investigation with you about science of corrosion and engineering of corrosion-prevention on the basis of electrochemistry.  The followings are main research points of our laboratory:

  •  the development of new materials and films with high corrosion-resistance,
  •  the mitigation of environmental-assisted cracking various materials,
  • the mechanism of the corrosion process for any systems, using sophisticated electrochemical and metallurgical techniques.

TOPICS

  • Corrosion Resistance of Titanium-Magnesium Alloy in Weak Acid Solution Containing Fluoride Ions
  • Correlation between amount of bound water and stability of passive film on Ti during passivation time in sulfuric acid solution
  • Effect of additional element on hydrogen absorption for iron in acidic and neutral sulfate solutions
  • Diffusion behavior of D2O in the corrosion product films on steels
  • Atmospheric corrosion of stainless steel and aluminum at the point of thickness of solution layer

OUR PAPERS PUBLISHED RECENTLY (Only in English)

  • T. Haruna, Y. Wang and J. Yamanishi:
    Hydrogen Absorption into Fe Plates with Rust Layers Containing Various MgCl2 Amounts during Atmospheric Corrosion with Controlled Humidity,
    ISIJ International, Vol. 61 (2021), No. 4, pp. 1179–1185
  • Y. Wang, J. Yamanishi and T. Haruna:
    Effect of Humidity of Air on Hydrogen Absorption into Fe with Rust Layer Containing MgCl2 during Atmospheric Corrosion
    ISIJ International, Vol. 61 (2021), No. 4, pp. 1143–1150
  • T. Haruna, Y. Shoji, Y. Hirohata:
    Hydrogen absorption rate into Fe with rust layer containing NaCl during atmospheric corrosion in humidity-controlled air,
    ISIJ International, Vol. 61 (2021), No. 4, pp. 1079–1084
  • T.Haruna:
    II. Fundamental Electrochemical Method for Corrosion: Corrosion Potential,
    Corros. Eng., Vol.67, No.1, pp.1-8(2018)
  • Y.Yasuda, H.Abe, R.Matsubayashi, T.Maruyama, T.Haruna:
    Corrosion Behavior of Lead-Free Copper Alloy Castings and Their Crystallized Substances of Cu2S and Bi,
    Mater. Trans., Vol.58, No.12, pp.1679-1686(2017)
  • T.Haruna, Y.Fujita, D.Morihashi, Y.Hirohata:
    Environment-assisted cracking of super-elastic TiNi alloy depending on solution pH and electrochemical potential,
    Mater. Sci. Forum, Vol.879, pp.709-713(2017)
  • T.Haruna, Y.Fujita, D.Morihashi, Y.Hirohata:
    Role of the electrochemical potential and solution pH to environment-assisted cracking of super-elastic TiNi alloy,
    Mater. Trans., Vol.57, No.12, pp.2026-2032(2016)
  • D.Morihashi, T.Irie, Y.Hirohata, T.Haruna,
    Influence of concentrations of LiOH and Li2MoO4 on polarization curve of carbon steel in concentrated LiBr solutions,
    Corros. Eng., Vol.65, No.6, pp.202-207(2016)
  • T.Haruna, K.Takeuchi, T.Kasahara, Y.Nii:
    Effect of additional element on hydrogen absorption for iron in acidic and neutral sulfate solutions,
    ISIJ International, Vol.56, No.3, pp.378-384(2016)
  • T.Haruna,  Y.Nii:
    Effect of microstructural defects on hydrogen absorption for steels in acidic sulfate solution,
    ISIJ International, Vol.56, No.3, pp.392-396(2016)
  • T.Haruna, T.Ikeda, M.Miyazaki, A.Nishimoto, Y.Hirohata:
    Correlation between Bound Water and Stability of Anodic Oxide Film on Aluminum,
    Mater. Trans., Vol.56, No.12, pp.2000-2005(2015)
  • T.Haruna, T.Yamamoto, Y.Miyairi, T.Shibata, N.Taniguchi, K.Sakamaki,  H.Tachikawa:
    Diffusion Behavior of D2O in the Film on Fe Oxidized at High Temperature in Air,
    Corros. Eng., Vol.64, No.5, pp.162-169(2015)
  • T.Haruna, S.Ito, K.Kimoto,  A.Nishimoto:
    Correlation between amount of bound water and stability of passive film on Ti during passivation time in sulfuric acid solution,
    J. Solid State Electrochem., Vol.19, No.12, pp.3589-3593(2015)
  • T.Haruna:
    Development and Advancement of Hydrogen Detection Techniques Employed in Research on Hydrogen Embrittlement,
    Corros. Eng., Vol.63, No.3, 55-64(2014)
  • T.Haruna, D.Nishiwaki, M.Nishikawa:
    Effect of Potential on Hydrogen Evolution during Pitting of Aluminum,
    Mater. Sci. Forum, Vols.794-796, pp.107-111(2014)
  • T.Haruna, D.Motoya, Y.Nakagawa, N.Yamashita, T.Oishi:
    Corrosion Resistance of Titanium-Magnesium Alloy in Weak Acid Solution Containing Fluoride Ions,
    Trans. Mater., Vol. 54, No. 2, pp. 143-148(2013)

ADDRESS

Department of Chemistry and Materials Engineering
Faculty of Chemistry, Materials and Bioengineering
Kansai University
3-3-35 Yamatecho, Suita, Osaka 564-8680, JAPAN