|
KMID : 0362220100370010061
|
|
Journal of The Korean Research Society for Dental Materials
2010 Volume.37 No. 1 p.61 ~ p.68
|
|
|
Effect of Cr Content on Physical Properties of Dental Ti-xCr Alloys
|
|
Song Jin-Won
Lee Min-Ho
Yoon Dong-Joo
Seo Jae-Min
Ahn Seung-Geun
Song Kwang-Yeob
Park Ju-Mi
|
|
|
Abstract
|
|
|
|
Titanium and titanium alloys have become very attractive biomaterials due to their good corrosion resistance, excellent biocompatibility and specific strength. However, the properties of pure titanium are not suitable for all purposes. Many titanium alloys have been developed to improve the strength, workability and castibility of pure titanium. In addition, the casting of pure titanium is difficult because it has a high melting temperature and high reactivity with oxygen and impurities at elevated temperatures. The purpose of this study was to investigate the structure, corrosion resistance, workability and, microhardness of a series of binary Ti？xCr alloys with Cr content ranging from 5 to 35 wt%. This study evaluated the precipitated phase and structure of Ti？xCr alloys using X-ray diffraction and optical microscope and scanning electron microscope for microstructure of the etched alloys. Workability was evaluated by measuring the surface condition after rolling. With 5 wt% Cr, ？ phase starts to be retained. The ？ phase was found in the Ti？5Cr and Ti？10Cr alloys. The microhardness values and corrosion resistance of all the Ti-xCr alloys were significantly higher than that of pure Ti and the Ti-10Cr alloy had the highest microhardness and the best corrosion resistance due to ？ phase. Ti-xCr alloys with addition of Cr up to 15wt% showed good workability.
|
|
|
KEYWORD
|
|
|
Ti-xCr alloys, Addition of Cr, Microhardness, Workability
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|