Corrosion Behavior of Pure Titanium and Titanium Alloys in Various Concentrations of Acidulated Phosphate Fluoride (APF) Solutions

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概要

• 論文の詳細を見る

• The corrosion behaviors of Ti, Ti-6Al-7Nb and Ti-6Al-4V alloys, and an experimentally produced Ti-0.5Pt alloy in 0.05% to 2.0% concentrations of Acidulated Phosphate Fluoride (APF) solutions (corresponding to 226 to 9,050ppm fluoride at pH 3.5 or 3.6) were examined. While the corrosion of Ti, Ti-6Al-7Nb and Ti-6Al-4V alloys might occur easily even in a diluted 0.05% APF solution, dissolution of Ti from the Ti-0.5Pt alloy was observed only in test solutions with APF concentration exceeding 0.2%. When Ti-6Al-7Nb and Ti-6Al-4V alloys were immersed in 2.0% APF solution, their surfaces were entirely covered by compact corrosion products of Na_3TiF_6 due to severe corrosion. As a result, Ti dissolution was prevented and the amount of Ti dissolved decreased. However, since Ti was covered by porous, large-sized corrosion products of Na_3TiF_6 and that Ti-0.5Pt alloy was not covered with any corrosion product, the amount of Ti dissolved increased in the 2.0% APF solution.

• 日本歯科理工学会の論文

著者

• MATSUYA Shigeki

  Section of Bioengineering, Department of Dental Engineering, Fukuoka Dental College

• Ishikawa Kunio

  Department Of Biomaterials Faculty Of Dental Science Kyushu University

• Ishikawa Kunio

  九州大学 歯学部口腔機能修復学講座

• Matsuya Shigeki

  Department Of Biomaterials Faculty Of Dental Science Kyushu University

• Matsuya Shigeki

  日本歯科先端技術研究所

• Nakagawa M

  Department Of Biomaterials Faculty Of Dental Science Kyushu University

• TERADA Yoshihiro

  Department of Fixed Prosthodontics, Faculty of Dental Science, Kyushu University

• NAKAGAWA Masaharu

  Department of Biomaterials Faculty of Dental Science, Kyushu University

• Tsukiyama Yoshihiro

  Div. Of Oral Rehabilitation Fac. Of Dental Sci. Kyushu Univ.

• Terada Yoshihiro

  Department Of Fixed Prosthodontics Faculty Of Dental Science Kyushu University

• MATONO Yoshinari

  Department of Biomaterials, Faculty of Dental Science, Kyushu University

• Nakagawa Masaharu

  Department Of Biomaterials Division Of Oral Rehabilitation Faculty Of Dental Science Kyushu Universi

• Matono Yoshinari

  Department Of Fixed Prosthodontics Division Of Oral Rehabilitation Faculty Of Dental Science Kyushu

• Ishikawa Kunio

  Department Of Biomaterials

• Tsukiyama Yoshihiro

  Department Of Fixed Prosthodontics Faculty Of Dental Science Kyushu University

• Ishikawa Kunio

  Section Of Biomaterials Department Of Oral Rehabilitation School Of Dentistry Kyushu University

• Ishikawa Kunio

  Department of Applied Chemistry, Faculty of Engineering, Osaka Univeristy

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