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α+β型生物鈦合金磁控濺射TiN涂層磨損性能
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國(guó)家自然科學(xué)基金資助項(xiàng)目（30470486/C010515）


Wear Properties of Magnetron Sputtering TiN Coating on α+β Type Biomedical Ti6Al7Nb Alloy
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    摘要:

    為提高Ti6Al7Nb合金耐磨性，采用磁控濺射技術(shù)在合金表面制備了TiN涂層，通過掃描電鏡、光學(xué)顯微鏡、X射線衍射儀和銷-盤式磨損實(shí)驗(yàn)研究了涂層的相結(jié)構(gòu)和磨損性能。結(jié)果表明：涂層與基材結(jié)合良好，涂層的成分與結(jié)構(gòu)隨濺射時(shí)間而變化。濺射3 h時(shí)，涂層由表及里的相組成依次為TiN、TiN+Ti2N、Ti2N，其中TiN層硬度提高至基材的3倍。在10~40 N載荷下涂層明顯改善了合金的抗磨損性。表面改性后合金的磨損機(jī)制由原來的氧化磨損+粘著磨損轉(zhuǎn)變?yōu)橐阅チＤp為主

    Abstract:

    TiN coatings were successfully prepared by magnetron sputtering technology on biomedical Ti6Al7Nb alloy in order to improve its wear resistance. SEM and XRD were applied to observe the morphologies and analyze the structures of the coating, respectively. Pin-on-disc wear tests were carried out to compare the wear properties of specimen with and without coating. The results show that the coating has a good adhesion to the substrate. The composition and structure of the coating vary with sputtering time. When sputtered for 3 h, the coating is composed of TiN，TiN+Ti2N, Ti2N from the outer surface to the inner layer in sequence. The micro-hardness of TiN layer is increased to 3 times that of substrate. The wear resistance of the surface modified specimens is greatly improved under 10~40 N load, and wear mechanism changes from original oxidative and adhesive to abrasive-dominant

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郭愛紅,崔文芳,劉向宏,周 廉.α+β型生物鈦合金磁控濺射TiN涂層磨損性能[J].稀有金屬材料與工程,2009,38(3):473~476.[Guo Aihong, Cui Wenfang, Liu Xianghong, Zhou Lian. Wear Properties of Magnetron Sputtering TiN Coating on α+β Type Biomedical Ti6Al7Nb Alloy[J]. Rare Metal Materials and Engineering,2009,38(3):473~476.]
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  • 收稿日期:2008-03-25
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