TY - GEN
T1 - Microstructure and properties of centrifugal cast binary Ti-Nb alloys
AU - Chen, Yuyong
AU - Xu, Lijuan
AU - Liu, Zhiguang
AU - Kong, Fantao
AU - Chen, Ziyong
PY - 2006
Y1 - 2006
N2 - The objective is to study the content of element Nb to the microstructure and properties of centrifugal cast binary Ti-Nb alloys in order to develop a new type titanium alloy for dental prostheses with better properties than pure titanium (CP Ti). Experimental Ti-Nb alloys (5,10,15 and 20 weight% Nb) were made using an argon-arc melting furnace and cast into a graphite mold using a centrifugal casting machine. The microstructure, phase composition, Vickers hardness and compression strength were studied by means of optical microscopy (OM), X-ray diffraction (XRD), Vickers tester and a Instron 5500 testing machine. Experimental results indicated that crystal structure and morphology of Ti-Nb alloys were sensitive to their niobium contents. Only the α-Ti phase was observed in the XRD patterns of Ti-Nb alloys. Among all Ti-Nb alloys, Ti-20Nb alloy had the highest Vickers hardness (341 HV), the highest compression strength (1522 MPa) and the lowest elastic modulus (23.3 GPa). Ti-5Nb alloy had the highest compression ratio (24.9%). By alloying with niobium, the cast titanium exhibited better mechanical properties. The hardness and strength of Ti-Nb alloys have been improved.
AB - The objective is to study the content of element Nb to the microstructure and properties of centrifugal cast binary Ti-Nb alloys in order to develop a new type titanium alloy for dental prostheses with better properties than pure titanium (CP Ti). Experimental Ti-Nb alloys (5,10,15 and 20 weight% Nb) were made using an argon-arc melting furnace and cast into a graphite mold using a centrifugal casting machine. The microstructure, phase composition, Vickers hardness and compression strength were studied by means of optical microscopy (OM), X-ray diffraction (XRD), Vickers tester and a Instron 5500 testing machine. Experimental results indicated that crystal structure and morphology of Ti-Nb alloys were sensitive to their niobium contents. Only the α-Ti phase was observed in the XRD patterns of Ti-Nb alloys. Among all Ti-Nb alloys, Ti-20Nb alloy had the highest Vickers hardness (341 HV), the highest compression strength (1522 MPa) and the lowest elastic modulus (23.3 GPa). Ti-5Nb alloy had the highest compression ratio (24.9%). By alloying with niobium, the cast titanium exhibited better mechanical properties. The hardness and strength of Ti-Nb alloys have been improved.
KW - Dental materials
KW - Mechanical properties
KW - Microstructure
KW - Titanium-niobium alloy
UR - https://www.scopus.com/pages/publications/34250622507
U2 - 10.1049/cp:20060800
DO - 10.1049/cp:20060800
M3 - 会议稿件
AN - SCOPUS:34250622507
SN - 0863416969
SN - 9780863416965
T3 - IET Conference Publications
SP - 435
EP - 438
BT - International Technology and Innovation Conference 2006, ITIC 2006
T2 - International Technology and Innovation Conference 2006, ITIC 2006
Y2 - 6 November 2006 through 7 November 2006
ER -