In vitro corrosion resistance of Lotus-type porous Ni-free stainless steels

被引：15

作者：

Alvarez, Kelly ^{[1
]}

Hyun, Soong-Keun ^{[1
]}

Fujimoto, Shinji ^{[2
]}

Nakajima, Hideo ^{[1
]}

机构：

[1] Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan

[2] Osaka Univ, Div Mat & Mfg Sci, Grad Sch Engn, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE | 2008年 / 19卷 / 11期

关键词：

D O I：

10.1007/s10856-008-3458-6

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The corrosion behavior of three kinds of austenitic high nitrogen Lotus-type porous Ni-free stainless steels was examined in acellular simulated body fluid solutions and compared with type AISI 316L stainless steel. The corrosion resistance was evaluated by electrochemical techniques, the analysis of released metal ions was performed by inductively coupled plasma mass spectrometry (ICP-MS) and the cytotoxicity was investigated in a culture of murine osteoblasts cells. Total immunity to localized corrosion in simulated body fluid (SBF) solutions was exhibited by Lotus-type porous Ni-free stainless steels, while Lotus-type porous AISI 316L showed very low pitting corrosion resistance evidenced by pitting corrosion at a very low breakdown potential. Additionally, Lotus-type porous Ni-free stainless steels showed a quite low metal ion release in SBF solutions. Furthermore, cell culture studies showed that the fabricated materials were non-cytotoxic to mouse osteoblasts cell line. On the basis of these results, it can be concluded that the investigated alloys are biocompatible and corrosion resistant and a promising material for biomedical applications.

引用

页码：3385 / 3397

页数：13

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