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KMID : 0362220110380010075
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Journal of The Korean Research Society for Dental Materials
2011 Volume.38 No. 1 p.75 ~ p.82
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Physical Properties of Dental Ti-xNb Alloys as Niobium Content Increases
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Park Il-Song
Park Jung-Eun
Ji Jeong-Hui
Jin Guang-Chun
Yoon Dong-Joo
Park Ju-Mi
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Abstract
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The materials currently used for surgical implants include 316L stainless steel (316LSS), cobalt chromium (Co?Cr) alloys and titanium and its alloys. Elements such as Ni, Cr and Co are found to be released f rom the stainless steel and cobalt chromium alloys due to the corrosion in the body environment. The materials currently used for surgical implants include 316L stainless steel (316LSS), cobalt chromium (Co?Cr) alloys and titanium and its alloys. Elements such as Ni, Cr and Co are found to be released f rom the stainless steel and cobalt chromium alloys due to the corrosion in the body environment. The relative i ntensity o f β p hase increased a ccording to t he increase of niobium contents. Also the dendrite structures were changed to globular structures with increasing niobium contents. The microhardness values and corrosion resistance of all the Ti-xNb alloys were significantly higher than that of pure Ti and the Ti-37Nb alloy showed the best corrosion resistance among the other groups.
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KEYWORD
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Addition of Nb, Corrosion resistance, Microhardness, Ti-xNb alloys
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