Microstructure and grindability of as-cast Ti–Sn alloys

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 structu...

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Published inJournal of materials science Vol. 45; no. 7; pp. 1830 - 1836
Main Authors Hsu, Hsueh-Chuan, Lin, Hsi-Chen, Wu, Shih-Ching, Hong, Yu-Sheng, Ho, Wen-Fu
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.04.2010
Springer
Springer Nature B.V
Subjects
Alloy development
Alloys
Binary alloys
CAD/CAM
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Close packed lattices
Crystallography and Scattering Methods
Grindability
Grinding
Hardness
Machining
Materials Science
Mechanical properties
Microhardness
Polymer Sciences
Solid Mechanics
Specialty metals industry
Tin
Tin base alloys
Titanium
Titanium base alloys
Pure Titanium
Metal Chip
Ground Metal
Wheel Material
Dental Prosthesis
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Summary: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.
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ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-009-4166-4