Corrosion Resistance and Biocompatibility of High Nitrogen-bearing Stainless Steels
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- Endo Kazuhiko
- Department of Dental Materials Science, School of Dentistry, Health Sciences University of Hokkaido
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- Abiko Yoshihiro
- Department of Oral Pathology, School of Dentistry, Health Sciences University of Hokkaido
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- Suzuki Masahiro
- Department of Dental Materials Science, School of Dentistry, Health Sciences University of Hokkaido
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- Ohno Hiroki
- Department of Dental Materials Science, School of Dentistry, Health Sciences University of Hokkaido
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- Kaku Tohru
- Department of Oral Pathology, School of Dentistry, Health Sciences University of Hokkaido
書誌事項
- タイトル別名
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- Corrosion Resistance and Biocompatibili
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The corrosion resistance and cytocompatibility of two high N-bearing austenitic stainless steels as well as SUS 316L were evaluated in a simulated physiological environment. Potentiodynamic polarization measurements and analysis of released metal ions from alloy specimens immersed in 0.9% NaCl solution were made to evaluate the corrosion resistance. The surface of the alloys was characterized with X-ray photoelectron spectroscopy (XPS). Cell growth of human gingival fibroblasts was examined under culture conditions on these alloy surfaces. The pitting potential of the high N-bearing Fe-Cr-Mn-Mo alloy was higher than that of high N-bearing Fe-Cr-Mn alloy and SUS 316L. CrN formed in the outer region of the passive film and N enriched at the alloy surface under the passive film may be effective in improving pitting corrosion resistance. The present study demonstrated a correlation between corrosion resistance and metal-induced cytotoxity. The amount of released Fe and Cr ions from high N-bearing Fe-Cr-Mn alloy was approximately one order of magnitude higher than that from high N-bearing Fe-Cr-Mn-Mo alloy and SUS 316L. The cell growth rate on the high N-bearing Fe-Cr-Mn alloy was markedly depressed because of the large amount of released metal ions. The characteristics of the high N-bearing Fe-Cr-Mn-Mo austenitic stainless steel such as non-magnetism, high localized corrosion resistance, and excellent cytocompatibility meet the requirements for use as an implant material.
収録刊行物
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- Ｚａｉｒｙｏ‐ｔｏ‐Ｋａｎｋｙｏ
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Ｚａｉｒｙｏ‐ｔｏ‐Ｋａｎｋｙｏ 47 (9), 570-576, 1998
公益社団法人 腐食防食学会
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詳細情報 詳細情報について
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- CRID
- 1390001206259165440
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- NII論文ID
- 130004238600
- 10002174939
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- NII書誌ID
- AN10235427
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- COI
- 1:CAS:528:DyaK1cXmt1Wlsbw%3D
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- ISSN
- 18819664
- 09170480
- http://id.crossref.org/issn/05145163
- http://id.crossref.org/issn/09170480
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- NDL書誌ID
- 4559392
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可