Bias-graded deposition and tribological properties of Ti-contained a-C gradient composite film on Ti6Al4V alloy
作者： J.B. Cai , X.L. Wang , W.Q. Bai , X.Y. Zhao , T.Q. Wang
DOI: 10.1016/J.APSUSC.2013.04.136
关键词:
摘要: Abstract Ti-contained a-C gradient composite film with a thickness 1.5 μm was deposited on medical Ti6Al4V alloy substrate using closed field unbalanced magnetron sputtering bias-graded voltage through −20 V to −150 V. The mechanical and tribological properties were evaluated from nanoindentation, scratch test ball-on-disk tribometer. Compared the constant-bias at −150 V, has approximate hardness (19 GPa) but high toughness adhesion strength. At normal load of 10 N, shows low friction coefficient 0.08 wear rate 2.89 × 10 −16 m 3 N −1 in ambient air. While Hanks’ solution, same 4.63 × 10 −17 . Excellent resistance solution may bring about biological application for film.
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