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鈦合金Ti6Al4V表面Mo-N改性層的摩擦性能研究
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TG146.23 TG115.58

基金項(xiàng)目:

國(guó)家自然科學(xué)基金資助項(xiàng)目（50371060）;山西省留學(xué)回國(guó)基金項(xiàng)目（2003-27）


Friction and Wear Behavior of Mo-N Diffusion Layer on Ti6Al4V Alloy Surface
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    摘要:

    采用鉬-氮離子共滲與離子滲鉬后再氮化2種工藝,在鈦合金Ti6Al4V表面形成均勻致密的鉬氮合金滲層.實(shí)驗(yàn)結(jié)果表明,2種工藝形成的表面合金層表面硬度都有大幅度提高,其中滲鉬后氮化的硬度Hk0.1為16 810 MPa,鉬-氮共滲Hk0.1為18 040 MPa.滲鉬后氮化合金層主要為MoN相,而鉬-氮共滲合金層主要為Mo2N相. 干摩擦條件下,球盤磨損試驗(yàn)表明,滲鉬后氮化工藝更好地改進(jìn)了鈦合金Ti6Al4V耐磨性,降低比磨損率3個(gè)數(shù)量級(jí).

    Abstract:

    Tow kinds of Mo-N alloyed Iayers were fabricated on the surface of Ti6Al4V alloy by Xu-Tec process. One process was Mo-diffusing with nitriding simultaneously,and the other is nitriding after Mo-diffusing. This paper investigated their friction and wear behaviors against a polished 2100 steel counterbody ball under ball-on-disc test condition.It has been found that both the two Mo-N diffusion layers have excellent wear-resistant hehavior in sliding hut their friction coefficient increases slightly.The war rate for Mo-diffusing with simullaneous nitriding 400 times less than Ti6Al4V and 1080 times less for nitriding after Mo-diffusing.

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秦林 唐賓 劉道新 徐重.鈦合金Ti6Al4V表面Mo-N改性層的摩擦性能研究[J].稀有金屬材料與工程,2005,34(9):1465~1468.[Qin Lin;Tang Bin;Liu DaoXin;Xu Chong. Friction and Wear Behavior of Mo-N Diffusion Layer on Ti6Al4V Alloy Surface[J]. Rare Metal Materials and Engineering,2005,34(9):1465~1468.]
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  • 收稿日期:2004-08-27
  • 最后修改日期:2004-08-27
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