Effects of Fluoride and Dissolved Oxygen Concentrations on the Corrosion Behavior of Pure Titanium and Titanium Alloys
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概要
- 論文の詳細を見る
The effects of dissolved-oxygen concentration and fluoride concentration on the corrosion behaviors of commercial pure titanium, Ti-6Al-4V and Ti-6Al-7Nb alloys and experimentally produced Ti-0.2Pd and Ti-0.5Pt alloys were examined using the corrosion potential measurements. The amount of dissolved Ti was analyzed by inductively coupled plasma mass spectroscopy. A decrease in the dissolved-oxygen concentration tended to reduce the corrosion resistance of Ti and Ti alloys. If there was no fluoride, however, corrosion did not occur. Under low dissolved-oxygen conditions, the corrosion of pure Ti and Ti-6Al-4V and Ti-6Al-7Nb alloys might easily take place in the presence of small amounts of fluoride. They were corroded by half or less of the fluoride concentrations in commercial dentifrices. The Ti-0.2Pd and Ti-0.5Pt alloys did not corrode more, even under the low dissolved-oxygen conditions and a fluoride-containing environment, than pure Ti and Ti-6Al-4V and Ti-6Al-7Nb alloys. These alloys are expected to be useful as new Ti alloys with high corrosion resistance in dental use.
- 日本歯科理工学会の論文
著者
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Nakagawa M
Section Of Biomaterials Engineering Division Of Oral Rehabilitation Faculty Of Dental Science Kyushu
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Nakagawa Masaharu
Section Of Biomaterials Engineering Division Of Oral Rehabilitation Faculty Of Dental Science Kyushu
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Matsuya Shigeki
Section Of Biomaterials Engineering Division Of Oral Rehabilitation Faculty Of Dental Science Kyushu
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Matsuya Shigeki
Section Of Bioengineering Department Of Dental Engineering Fukuoka Dental College
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UDOH Koichi
Section of Biomaterials Engineering, Division of Oral Rehabilitation, Faculty of Dental Science, Kyu
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Udoh K
Section Of Biomaterials Engineering Division Of Oral Rehabilitation Faculty Of Dental Science Kyushu
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