Massive Transformation in Titanium-Silver Alloys and Its Effect on Their Mechanical Properties and Corrosion Behavior

Materials

Mi-Kyung Han¹  Moon-Jin Hwang¹  Dae-Hee Won²  Yang-Soo Kim³  Ho-Jun Song¹ 

[1] Department of Dental Materials and Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju 500-757, Korea; E-Mails:;Industry-Academic Cooperation Foundation, Wonkwang University, Jeonbuk 570-749, Korea; E-Mail:;Sunchon Center, Korea Basic Science Institute, Sunchon 540-950, Korea; E-Mail:

关键词: Ti–Ag alloys;    dental materials;    corrosion resistance;    mechanical properties;    microstructure;   

DOI  :  10.3390/ma7096194

来源: mdpi

【 摘 要 】

In order to investigate the relationship between phase/microstructure and various properties of Ti–xAg alloys, a series of Ti–xAg alloys with Ag contents ranging from 5 to 20 wt% were prepared. The microstructures were characterized using X-ray diffractometry (XRD), optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). All of the Ti–xAg alloys showed a massive transformation from the β-Ti to α_m phase, which has a different crystal structure from that of the matrix phase, but it has the same composition as the matrix α-Ti phase. As a result of solid-solution strengthening of α-Ti and massive transformation phase, the Ti–xAg showed better mechanical properties than the commercially pure titanium (cp-Ti). Electrochemical results showed that the Ti–xAg alloys exhibited improved corrosion resistance and oxidation resistance than cp-Ti.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.