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Figure 1
A demonstration of the high tensile strength, ductility, and easy handling of one of the TNTZ melt-extracted wire [1]
Table 1
Alloy system for Ti-based and Zr-based alloy wire formation by Arc-melt type melt extraction method [1][2]
Beta-Ti-type Ti-30Nb-10Ta-5Zr (TNTZ) wires with high-ductility were developed using the Arc-melt type melt-extraction method. The continuous melt-extracted wire with very smooth surface and small fluctuations in the diameter realizes the high tensile strength and superior bending ductility of TNTZ alloy. Figure 1 is a demonstration of the high tensile strength, ductility, and easy handling of one of the TNTZ melt-extracted wires. The TNTZ wire did not get fractured when it was used to lift a heavy load of approximately 1L water. The TNTZ wire can be bent through 180 degree without fracture in spite of the heavy load as shown in the close-up image. The wire was not damaged even when it was held tightly by a pair of needle-nose pliers. Furthermore, the OM and SEM images of the knot formed by the TNTZ wire highlight the full ductility of the wire. The Arc-melt type melt-extraction method is very effective for developing new Beta-Ti-based biomaterials [1,2].
REFERENCES
[1] T. Nagase, T. Nakano, Y. Umakoshi and M. Niinomi: Mater. Trans., 51, 377-380 (2010)., http://www.jim.or.jp/journal/e/51/02/377.html
[2] T. Nagase, K. Kinoshita and Y. Umakoshi: Mater. Trans., 49, 1385-1394 (2008). http://www.jim.or.jp/journal/e/49/06/1385.html
