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Ta12W合金表面離子束沉積薄膜與U-Nb合金之間的摩擦性能
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中國(guó)工程物理研究院科學(xué)基金項(xiàng)目（20030868）


Friction Characteristics between U-Nb Alloy and Film by Ion Beam Deposition on Ta12W Alloy Surface
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    摘要:

    采用離子束沉積方法在Ta12W合金表面制備了Sn,In軟金屬薄膜,Al2O3陶瓷薄膜和In/Al2O3復(fù)合薄膜.利用銷(xiāo)盤(pán)摩擦磨損試驗(yàn)機(jī)并結(jié)合SEM觀察分析了對(duì)偶銷(xiāo)為U-Nb合金時(shí),試樣的摩擦學(xué)性能并討論了摩擦磨損機(jī)理.當(dāng)用SiC對(duì)偶進(jìn)行評(píng)價(jià)時(shí),Sn,In軟金屬薄膜降低了Ta12W合金摩擦系數(shù).然而當(dāng)對(duì)偶銷(xiāo)改為工程狀態(tài)的U-Nb合金時(shí),由于用離子束濺射沉積法制備的Sn薄膜太薄、In薄膜與U-Nb合金發(fā)生粘著,Sn,In軟金屬薄膜與In/Al2O3復(fù)合薄膜均未降低Ta12W合金的的摩擦系數(shù).當(dāng)Sn薄膜增加到一定厚度時(shí),摩擦性能得到明顯改善.Al2O3陶瓷薄膜與U-Nb合金對(duì)偶銷(xiāo)摩擦?xí)r,與Ta12W合金表面直接摩擦結(jié)果一樣,由于U-Nb合金容易被磨損而使磨屑轉(zhuǎn)移到試樣表面,摩擦系數(shù)沒(méi)有下降.

    Abstract:

    Sn and In soft metal films, Al2O3 ceramic film and In/Al2O3 dual film were prepared with ion beam deposition technique. Sliding friction characteristics of these films against U-Nb alloy pin were evaluated by a pin-disc tribometer and Scan Electrical Microscopy (SEM). It had been found that the friction coefficients of sliding against SiC ceramics ball with smoothing surface decreased for the Sn and In films due to their very low strength, but increased against U-Nb alloy pin with engineering-coarse surface for the In film and In/Al2O3 dual film due to the adhesion between In and U-Nb alloy. Meantime, very thin Sn film resulted in increase of friction coefficient. The friction property would be improved only when the thickness of Sn film increased to a reasonable value. Otherwise, the friction coefficient of Al2O3 ceramics film against the U-Nb alloy with low strength did not decrease almost same as the results of Ta12W alloy because the U-Nb alloy was easy to be worn and transferred on the surface.

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白彬 梁宏偉 嚴(yán)東旭 張厚亮 肖紅 王曉紅. Ta12W合金表面離子束沉積薄膜與U-Nb合金之間的摩擦性能[J].稀有金屬材料與工程,2006,35(7):1075~1079.[Bai Bin, Liang Hongwei, Yang Dongxu, Zhang Houliang, Xiao Hong, Wang Xiaohong. Friction Characteristics between U-Nb Alloy and Film by Ion Beam Deposition on Ta12W Alloy Surface[J]. Rare Metal Materials and Engineering,2006,35(7):1075~1079.]
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  • 收稿日期:2005-05-11
  • 最后修改日期:2006-04-12
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