{"id":189,"date":"2021-01-28T15:00:34","date_gmt":"2021-01-28T06:00:34","guid":{"rendered":"http:\/\/wps.itc.kansai-u.ac.jp\/sel\/?page_id=189"},"modified":"2026-03-14T21:25:57","modified_gmt":"2026-03-14T12:25:57","slug":"english","status":"publish","type":"page","link":"https:\/\/wps.itc.kansai-u.ac.jp\/sel\/english\/","title":{"rendered":"English"},"content":{"rendered":"\n<p>We are looking for your contact any time !<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">STAFF and MEMBERS (in 2025)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#00a799;font-size:20px\">Professor:<\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:20%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"404\" height=\"303\" src=\"http:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-content\/uploads\/sites\/205\/2021\/01\/\u6625\u540d\u5148\u751fphoto.jpg\" alt=\"\" class=\"wp-image-116\" srcset=\"https:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-content\/uploads\/sites\/205\/2021\/01\/\u6625\u540d\u5148\u751fphoto.jpg 404w, https:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-content\/uploads\/sites\/205\/2021\/01\/\u6625\u540d\u5148\u751fphoto-300x225.jpg 300w, https:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-content\/uploads\/sites\/205\/2021\/01\/\u6625\u540d\u5148\u751fphoto-360x270.jpg 360w\" sizes=\"auto, (max-width: 404px) 100vw, 404px\" \/><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:80%\">\n<p><strong>Takumi HARUNA (Ph.D.)&nbsp;<\/strong><br>Department of Chemistry and Materials Engineering<br>Faculty of Chemistry, Materials and Bioengineering <\/p>\n\n\n\n<p>&nbsp;<strong>E-mail:<\/strong> haruna (at) kansai-u.ac.jp<\/p>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#00a799;font-size:20px\">Assistant Professor:<\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:20%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:80%\">\n<p><strong><strong>Youhei HIROHATA (Ph.D.)<\/strong><br><\/strong>Department of Chemistry and Materials Engineering<br>Faculty of Chemistry, Materials and Bioengineering<\/p>\n\n\n\n<p><strong>E-mail:<\/strong> hirohata (at) kansai-u.ac.jp<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-color\" style=\"color:#00a799;font-size:20px\">Students:<\/h3>\n\n\n\n<p>Doctor (2nd): 1<br>Master (2nd): 2&nbsp;&nbsp;<br>Master (1st): 5&nbsp;&nbsp;<br>Undergraduate (4th) : 9<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">INTRODUCTION<\/h2>\n\n\n\n<p>Most of metallic materials are utilized in their specific environments without exception, and then they react with the environment.&nbsp;&nbsp;The reaction, termed as \u201ccorrosion\u201d, is big issue in most of manufacture industries because metallic machines and device degrade to failure and be fractured by corrosion.&nbsp;&nbsp;Therefore, there are quite large social demands to prevent corrosion and to train the persons who have knowledge about corrosion.&nbsp;<\/p>\n\n\n\n<p>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.&nbsp;&nbsp;The followings are main research points of our laboratory:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>the development of new materials and films with high corrosion-resistance,<\/li>\n\n\n\n<li>the mitigation of environmental-assisted cracking various materials,<\/li>\n\n\n\n<li>the mechanism of the corrosion process for any systems, using sophisticated electrochemical and metallurgical techniques.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">TOPICS<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Corrosion Resistance of Titanium-Magnesium Alloy in Weak Acid Solution Containing Fluoride Ions<\/li>\n\n\n\n<li>Correlation between amount of bound water and stability of passive film on Ti during passivation time in sulfuric acid solution<\/li>\n\n\n\n<li>Effect of additional element on hydrogen absorption for iron in acidic and neutral sulfate solutions<\/li>\n\n\n\n<li>Diffusion behavior of D<sub>2<\/sub>O in the corrosion product films on steels<\/li>\n\n\n\n<li>Atmospheric corrosion of stainless steel and aluminum at the point of thickness of solution layer<\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">OUR PAPERS PUBLISHED RECENTLY (Only in English)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T. Kawarasaki, Y. Sakakibara and T. Haruna: <br>Stability Evaluation of Platinum Electrode Potential in Low-temperature Liquid Ammonia<br>Mater. Trans.,  Vol.67, No.4 (2026)<br><a href=\"https:\/\/doi.org\/10.2320\/matertrans.MT-C2025005\">https:\/\/doi.org\/10.2320\/matertrans.MT-C2025005<\/a><\/li>\n\n\n\n<li>T. Haruna, E. Uehata, S. Nishio and Y. Hirohata:<br>Pitting corrosion of SUS304 steel covered with agar film containing thiosulfate in chloride solution<br>ISIJ Int., Vol.65, No.10, pp. 1502\u20131509 (2025)<br><a href=\"https:\/\/doi.org\/10.2355\/isijinternational.isijint-2025-078\">https:\/\/doi.org\/10.2355\/isijinternational.isijint-2025-078<\/a><\/li>\n\n\n\n<li>T. Haruna, D. Morihashi and Y. Hirohata:<br>The states and their amount of hydrogen absorbing super-elastic TiNi alloy, <br>Electrochimica Acta, Vol.506, No.12, #144992 (2024)<br><a href=\"https:\/\/doi.org\/10.1016\/j.electacta.2024.144992\">https:\/\/doi.org\/10.1016\/j.electacta.2024.144992<\/a><\/li>\n\n\n\n<li>T. Haruna, M. Imamura and Y. Hirohata: <br>Pitting Corrosion of Titanium Depending on the Properties of the Passive Film, <br>J. Electrochem. Soc., Vol.171, No.1, #011502 (2024)<br><a href=\"https:\/\/doi.org\/10.1149\/1945-7111\/ad1ace\">https:\/\/doi.org\/10.1149\/1945-7111\/ad1ace<\/a><\/li>\n\n\n\n<li>T. Haruna, Y. Wang and J. Yamanishi: <br>Hydrogen Absorption into Fe Plates with Rust Layers Containing Various MgCl<sub>2<\/sub> Amounts during Atmospheric Corrosion with Controlled Humidity, <br>ISIJ International, Vol. 61, No. 4, pp. 1179\u20131185 (2021)<br><a href=\"https:\/\/doi.org\/10.2355\/isijinternational.ISIJINT-2020-502\">https:\/\/doi.org\/10.2355\/isijinternational.ISIJINT-2020-502<\/a><\/li>\n\n\n\n<li>Y. Wang, J. Yamanishi and T. Haruna: <br>Effect of Humidity of Air on Hydrogen Absorption into Fe with Rust Layer Containing MgCl<sub>2<\/sub> during Atmospheric Corrosion<br>ISIJ International, Vol. 61, No. 4, pp. 1143\u20131150 (2021)<br><a href=\"https:\/\/doi.org\/10.2355\/isijinternational.ISIJINT-2020-426\">https:\/\/doi.org\/10.2355\/isijinternational.ISIJINT-2020-426<\/a><\/li>\n\n\n\n<li>T. Haruna, Y. Shoji and Y. Hirohata: <br>Hydrogen absorption rate into Fe with rust layer containing NaCl during atmospheric corrosion in humidity-controlled air, <br>ISIJ International, Vol. 61 (2021), No. 4, pp. 1079\u20131084<br><a href=\"https:\/\/doi.org\/10.2355\/isijinternational.ISIJINT-2020-018\">https:\/\/doi.org\/10.2355\/isijinternational.ISIJINT-2020-018<\/a><\/li>\n\n\n\n<li>T. Haruna: <br>II. Fundamental Electrochemical Method for Corrosion: Corrosion Potential, <br>Corros. Eng., Vol.67, No.1, pp.1-8(2018)<\/li>\n\n\n\n<li>Y. Yasuda, H. Abe, R. Matsubayashi, T. Maruyama and T. Haruna: <br>Corrosion Behavior of Lead-Free Copper Alloy Castings and Their Crystallized Substances of Cu<sub>2<\/sub>S and Bi, <br>Mater. Trans., Vol.58, No.12, pp.1679-1686(2017)<br><a href=\"https:\/\/doi.org\/10.2320\/matertrans.M2017196\">https:\/\/doi.org\/10.2320\/matertrans.M2017196<\/a><\/li>\n\n\n\n<li>T. Haruna, Y. Fujita, D. Morihashi and Y. Hirohata: <br>Environment-assisted cracking of super-elastic TiNi alloy depending on solution pH and electrochemical potential, <br>Mater. Sci. Forum, Vol.879, pp.709-713(2017)<br><a href=\"https:\/\/doi.org\/10.4028\/www.scientific.net\/MSF.879.709\">https:\/\/doi.org\/10.4028\/www.scientific.net\/MSF.879.709<\/a><\/li>\n\n\n\n<li>T. Haruna, Y. Fujita, D. Morihashi and Y.Hirohata: <br>Role of the electrochemical potential and solution pH to environment-assisted cracking of super-elastic TiNi alloy, <br>Mater. Trans., Vol.57, No.12, pp.2026-2032(2016)<br><a href=\"https:\/\/doi.org\/10.2320\/matertrans.MI201511\">https:\/\/doi.org\/10.2320\/matertrans.MI201511<\/a><\/li>\n\n\n\n<li>D. Morihashi, T. Irie, Y. Hirohata and T. Haruna, <br>Influence of concentrations of LiOH and Li<sub>2<\/sub>MoO<sub>4<\/sub>\u00a0on polarization curve of carbon steel in concentrated LiBr solutions, <br>Corros. Eng., Vol.65, No.6, pp.202-207(2016)<\/li>\n\n\n\n<li>T. Haruna, K. Takeuchi, T. Kasahara and Y.Nii: <br>Effect of additional element on hydrogen absorption for iron in acidic and neutral sulfate solutions, <br>ISIJ International, Vol.56, No.3, pp.378-384(2016)<br><a href=\"https:\/\/doi.org\/10.2355\/isijinternational.ISIJINT-2015-223\">https:\/\/doi.org\/10.2355\/isijinternational.ISIJINT-2015-223<\/a><\/li>\n\n\n\n<li>T. Haruna and\u00a0Y. Nii: <br>Effect of microstructural defects on hydrogen absorption for steels in acidic sulfate solution, <br>ISIJ International, Vol.56, No.3, pp.392-396(2016)<br><a href=\"https:\/\/doi.org\/10.2355\/isijinternational.ISIJINT-2015-283\">https:\/\/doi.org\/10.2355\/isijinternational.ISIJINT-2015-283<\/a><\/li>\n\n\n\n<li>T. Haruna, T. Ikeda, M. Miyazaki, A. Nishimoto and Y. Hirohata: <br>Correlation between Bound Water and Stability of Anodic Oxide Film on Aluminum, <br>Mater. Trans., Vol.56, No.12, pp.2000-2005(2015)<br><a href=\"https:\/\/doi.org\/10.2320\/matertrans.L-M2015831\">https:\/\/doi.org\/10.2320\/matertrans.L-M2015831<\/a><\/li>\n\n\n\n<li>T. Haruna, T. Yamamoto, Y. Miyairi, T. Shibata, N. Taniguchi, K. Sakamaki and\u00a0H. Tachikawa: <br>Diffusion Behavior of D<sub>2<\/sub>O in the Film on Fe Oxidized at High Temperature in Air, <br>Corros. Eng., Vol.64, No.5, pp.162-169(2015)<\/li>\n\n\n\n<li>T. Haruna, S. Ito, K. Kimoto and\u00a0\u00a0A. Nishimoto: <br>Correlation between amount of bound water and stability of passive film on Ti during passivation time in sulfuric acid solution,<br>J. Solid State Electrochem., Vol.19, No.12, pp.3589-3593(2015)<br><a href=\"https:\/\/doi.org\/10.1007\/s10008-015-3037-y\">https:\/\/doi.org\/10.1007\/s10008-015-3037-y<\/a><\/li>\n\n\n\n<li>T. Haruna: <br>Development and Advancement of Hydrogen Detection Techniques Employed in Research on Hydrogen Embrittlement,<br>Corros. Eng., Vol.63, No.3, 55-64(2014)<\/li>\n\n\n\n<li>T. Haruna, D. Nishiwaki and M.Nishikawa:<br>Effect of Potential on Hydrogen Evolution during Pitting of Aluminum,<br>Mater. Sci. Forum, Vols.794-796, pp.107-111(2014)<br><a href=\"https:\/\/doi.org\/10.4028\/www.scientific.net\/MSF.794-796.107\">https:\/\/doi.org\/10.4028\/www.scientific.net\/MSF.794-796.107<\/a><\/li>\n\n\n\n<li>T. Haruna, D. Motoya, Y. Nakagawa, N. Yamashita and T. Oishi:<br>Corrosion Resistance of Titanium-Magnesium Alloy in Weak Acid Solution Containing Fluoride Ions,<br>Trans. Mater., Vol. 54, No. 2, pp. 143-148(2013)<br><a href=\"https:\/\/doi.org\/10.4028\/www.scientific.net\/MSF.794-796.107\">https:\/\/doi.org\/10.4028\/www.scientific.net\/MSF.794-796.107<\/a><\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">ADDRESS<\/h2>\n\n\n\n<p>Department of Chemistry and Materials Engineering<br>Faculty of Chemistry, Materials and Bioengineering<br>Kansai University<br>3-3-35 Yamatecho, Suita, Osaka 564-8680, JAPAN<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We are looking for your contact any time <a href=\"https:\/\/wps.itc.kansai-u.ac.jp\/sel\/english\/\" class=\"read-more\">Read More &#8230;<\/a><\/p>\n","protected":false},"author":207,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-189","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-json\/wp\/v2\/pages\/189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-json\/wp\/v2\/users\/207"}],"replies":[{"embeddable":true,"href":"https:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-json\/wp\/v2\/comments?post=189"}],"version-history":[{"count":65,"href":"https:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-json\/wp\/v2\/pages\/189\/revisions"}],"predecessor-version":[{"id":846,"href":"https:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-json\/wp\/v2\/pages\/189\/revisions\/846"}],"wp:attachment":[{"href":"https:\/\/wps.itc.kansai-u.ac.jp\/sel\/wp-json\/wp\/v2\/media?parent=189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}