TY - JOUR
T1 - Effects of TiB on the mechanical properties of Ti-29Nb-13Ta-4.6Zr alloy for use in biomedical applications
AU - Song, Xiu
AU - Niinomi, Mitsuo
AU - Tsutsumi, Harumi
AU - Nakai, Masaaki
AU - Wang, Lei
N1 - Funding Information:
This work was supported in part by the China Scholarship Council (CSC), China; Grant-in-Aid for Young Scientists ( 21760549 ), MEXT (Tokyo, Japan); the Global COE Materials Integration Program (International Center of Education and Research), Tohoku University (Sendai, Japan); R&D Institute of Metals and Composites for Future Industries (Tokyo, Japan); Interuniversity Cooperative Research Program of the Advanced Research Center of Metallic Glasses, Tohoku University (Sendai, Japan) ; Interuniversity Cooperative Research Program of the Institute for Materials Research, Tohoku University (Sendai, Japan) ; the Light Metal Educational Foundation (Osaka, Japan) ; and the project between Tohoku University and Kyusyu University on “Highly-functional Interface Science: Innovation of Biomaterials with Highly Functional Interface to Host and Parasite,” MEXT (Tokyo, Japan). The authors would like to express great gratitude to Daido Steel Co., Ltd. for supplying materials.
PY - 2011/6/25
Y1 - 2011/6/25
N2 - TiB2 was added to β-type Ti-29Nb-13Ta-4.6Zr (TNTZ) to enhance its mechanical properties and lower its Young's modulus, and the microstructures and mechanical properties of TNTZ with 0.05-0.50mass%B were investigated. The B concentration of TNTZ was controlled by varying the amount of added TiB2. TNTZ with 0.05-0.50mass%B consists of a β-phase with a small amount of TiB. As the B concentration increases, these TiB precipitates become increasingly efficient at preventing texture movement. The microstructure of TNTZ is refined by TiB, and the TNTZ grain size decreases as the B concentration increases. Moreover, the Young's moduli of TNTZ with 0.05-0.50mass%B remain below 70GPa, and are almost similar to that of TNTZ without TiB. The tensile strength of TNTZ with 0.05-0.50mass%B is slightly improved, and the optimum tensile strength is enhanced by approximately 8%. TNTZ with 0.10mass%B exhibits a good balance between tensile strength and the elongation. The results of this study are expected to contribute to the creation of a TNTZ-based material with improved mechanical properties and maintained Young's modulus that can be used as dental and orthopedic biomaterials.
AB - TiB2 was added to β-type Ti-29Nb-13Ta-4.6Zr (TNTZ) to enhance its mechanical properties and lower its Young's modulus, and the microstructures and mechanical properties of TNTZ with 0.05-0.50mass%B were investigated. The B concentration of TNTZ was controlled by varying the amount of added TiB2. TNTZ with 0.05-0.50mass%B consists of a β-phase with a small amount of TiB. As the B concentration increases, these TiB precipitates become increasingly efficient at preventing texture movement. The microstructure of TNTZ is refined by TiB, and the TNTZ grain size decreases as the B concentration increases. Moreover, the Young's moduli of TNTZ with 0.05-0.50mass%B remain below 70GPa, and are almost similar to that of TNTZ without TiB. The tensile strength of TNTZ with 0.05-0.50mass%B is slightly improved, and the optimum tensile strength is enhanced by approximately 8%. TNTZ with 0.10mass%B exhibits a good balance between tensile strength and the elongation. The results of this study are expected to contribute to the creation of a TNTZ-based material with improved mechanical properties and maintained Young's modulus that can be used as dental and orthopedic biomaterials.
KW - Tensile properties
KW - Titanium diboride
KW - Young's modulus
KW - β-Type titanium alloy
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U2 - 10.1016/j.msea.2011.03.108
DO - 10.1016/j.msea.2011.03.108
M3 - Article
AN - SCOPUS:79955649513
VL - 528
SP - 5600
EP - 5609
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
IS - 16-17
ER -