| Ti-75合金在口腔修复应用的腐蚀性 |
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| 引用本文： | 裘松波,郭天文,曹风华,李佐臣.Ti-75合金在口腔修复应用的腐蚀性[J].中国口腔种植学杂志,1998(1). |
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| 作者姓名： | 裘松波 郭天文 曹风华 李佐臣 |
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| 作者单位： | 第三军医大学新桥医院!400037(裘松波)，第四军医大学口腔医学院!710032(郭天文)，西北有色金属研究院(曹风华，李佐臣) |
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| 摘 要： | 为评价Ti－75合金在口腔修复应用的耐腐蚀性，用动电位极化技术测试了五种材料在人工唾液中的腐蚀性。结果显示Ti-75合金自腐蚀电位介于TA2和TC4之间，破裂电位高于CO－Cr、Ni－Cr合金；Ti－75测试面未见腐蚀，而Co－Cr、Ni－Cr合金均有全面腐蚀和点蚀；结合极化曲线整体形态分析，结论：Ti－75合金的耐蚀性与TA2、TC4相似，但优于临床现用的Co－Cr、Ni－Cr合金。
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| 关 键 词： | 钛合金 腐蚀 牙科材料 |
Study on corrosion behavior of Ti-75 alloy in prosthodontic applications |
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| Qiu Songbo, Cuo Ttanwen, Cao Fenghua, et al.Study on corrosion behavior of Ti-75 alloy in prosthodontic applications[J].Chinese Journal of Oral Implantology,1998(1). |
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| Authors: | Qiu Songbo Cuo Ttanwen Cao Fenghua |
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| Abstract: | To evaluate the crrosion behavior of Ti-75 alloy in Prosthodontic aPPlication, 5 prosthodontic materialsin artificial saliva was tested using a potentiodynamic polarization technique. The results showed that (1)natural Potential of Ti-75 alloy was between TA2 and TC4. (2) The rupture potential of Ti-75 alloy wasabove 1. 2v. That was the same with TA2 and TC4, but it was more than the Co-Cr and Ni-Cr alloys. (3)Ti-75 alloy did not demonstrate crrosive attack but CO-Cr and Ni-Cr alloys exhibited pitting and generalcorrosion. These data and anodic potentiodynamic polarization curves indicated that the corrosion resistance ofTi-75 alloy is similar to TA2 and TC4 but far superior to that of clinical-used Co -Cr and NI-Cr alloys. |
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| Keywords: | titanium alloy corrosion dental material |
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