Microstructure and grindability of as-cast Ti–Sn alloys
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In this study, the structure, microhardness, and grindability of a series of binary Ti–Sn alloys with tin contents ranging from 1 to 30 wt% were investigated. Commercially pure titanium (c.p. Ti) was used as a control. The experimental results indicated that all the Ti–Sn alloys showed hcp α structure, and the hardness values of the Ti–Sn alloys increased with greater Sn contents, ranging from 246 HV (Ti–1Sn) to 357 HV (Ti–30Sn). Among these Ti–Sn alloys, the alloy with 30 wt% Sn content showed the highest hardness value. The grindability of each metal was found to be largely dependent on the grinding conditions. The addition of Sn to c.p. Ti did contribute to improving the grindability of c.p. Ti. The Ti–Sn alloys with a higher Sn concentration could be ground more readily. The grinding rate of the Ti–20Sn alloy at 1200 m/min was about 2.8 times higher than that of c.p. Ti. Additionally, the grinding ratios of the Ti–10Sn, Ti–20Sn, and Ti–30Sn alloys at 1200 m/min were about 2.8, 2.7, and 3.4 times that of c.p. Ti, respectively. Our research suggests that the Ti–Sn alloys with Sn contents of 10 wt% and greater developed here are good candidates for machining by the CAD/CAM method.
KeywordsPure Titanium Dental Prosthesis Metal Chip Wheel Material Ground Metal
The authors acknowledge the partial financial support of National Science Council of Taiwan (NSC 97-2221-E-212-009 and NSC 98-2221-E-212-013). The authors also express appreciation to Dr. Cheryl Rutledge, Associate Professor of English, Da-Yeh University, for her editorial assistance.
- 1.Oshida Y (2007) Bioscience and bioengineering of titanium materials. Elsevier, Oxford, p 3Google Scholar
- 3.Okuno O, Hamanaka H (1989) Dent Jpn 26:101Google Scholar
- 7.Craig RG (2006) Restorative dental materials, 12th edn. CV Mosby, St. Louis, p 454Google Scholar
- 10.Kikuchi M, Takahashi M, Sato H, Okuno O, Nunn ME, Okabe T (2005) J Biomed Mater Res B Appl Biomater 77:34Google Scholar
- 18.Grimme P, Hupfer P (1992) Metallurgy 46:365Google Scholar
- 25.Huang YC, Suzuki S, Kaneko H, Sato T (1970) The science, technology and application of titanium. Pergamon Press, Oxford, p 691, 695Google Scholar
- 26.Williams JC (1973) Titanium science and technology, metallurgical society of AIME. Plenum Press, New York, p 1433Google Scholar
- 27.Sato T, Hukai S, Huang YC (1960) J Aust Inst Met 5:149Google Scholar
- 28.Takeyama H, Yoshikawa T, Takada T (1975) J Jpn Soc Preci Eng 41:392Google Scholar
- 31.O’Brien WJ (1989) Dental materials: properties and selection, third edn. Quintessence, Chicago, p 515Google Scholar
- 32.Okabe T, Kikuchi M, Ohkubo C, Koike M, Okuno O, Oda Y (2004) J Miner Met Mater Soc 56:46Google Scholar