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Tribological Behaviour of Orthopaedic Ti-13Nb-13Zr and Ti-6Al-4V Alloys
被引:50
作者:
Cvijovic-Alagic, I.
[1
]
Cvijovic, Z.
[2
]
Mitrovic, S.
[3
]
Rakin, M.
[2
]
Veljovic, D.
[2
]
Babic, M.
[3
]
机构:
[1] Inst Nucl Sci Vinca, Belgrade 11001, Serbia
[2] Univ Belgrade, Fac Technol & Met, Belgrade 11120, Serbia
[3] Univ Kragujevac, Fac Mech Engn, Kragujevac 34000, Serbia
关键词:
Ti-13Nb-13Zr alloy;
Ti-6Al-4V ELI alloy;
Microstructure;
Friction;
Wear;
Ringer's solution;
DRY SLIDING WEAR;
SIMULATED BODY-FLUID;
TITANIUM-ALLOYS;
BIOMEDICAL APPLICATIONS;
CORROSION BEHAVIOR;
FRETTING WEAR;
TI;
MICROSTRUCTURE;
STEEL;
ZR;
D O I:
10.1007/s11249-010-9639-8
中图分类号:
TQ [化学工业];
学科分类号:
0817 ;
摘要:
The aim of this study is to compare the tribological behaviour of novel orthopaedic implant alloy Ti-13Nb-13Zr with that of the standard Ti-6Al-4V ELI alloy, available in four different microstructural conditions produced by variations in the heat treatments. The friction and wear tests were performed by using a block-on-disc tribometer in Ringer's solution at ambient temperature with a normal load of 20-60 N and sliding speed of 0.26-1.0 m/s. It was found that variations in microstructures produced significant variations in the wear resistance of Ti-6Al-4V ELI alloy. The wear losses of materials solution treated (ST) above the beta transus temperature are significantly lower compared with those of materials ST in the (alpha + beta) phase field and are almost insensitive to applied load and sliding speed. Wear loss of the (alpha + beta) ST Ti-6Al-4V ELI alloy continuously increased as applied load was increased and was highest at the highest sliding speed. The Ti-6Al-4V ELI alloy in all microstructural conditions possesses a much better wear resistance than cold-rolled Ti-13Nb-13Zr alloy. Friction results and morphology of worn surfaces showed that the observed behaviour is attributed to the predominant wear damage mechanism.
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页码:59 / 70
页数:12
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