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鈦合金雙層輝光離子無氫碳氮共滲摩擦性能研究
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TG146.23

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山西省自然科學基金項目(20041059,20031050)和山西省留學生資助項目(101055)


Research of Tribological Characteristics of Double Glow Plasma Hydrogen-Free Carbonitriding on Titanium Alloys
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    摘要:

    利用雙層輝光離子滲金屬原理改善鈦合金Ti6Al4V的耐摩擦性。使用蜂窩狀高純度固體石墨作為源極,鈦合金Ti6Al4V做陰極,一定比例的氬氣、氮氣作為載氣。依靠輝光放電空心陰極效應,濺射出原子、離子狀的碳元素,碳、氮元素混合形成等離子體,靠陰極負偏壓把碳、氮吸引到Ti6Al4V的表面,依靠轟擊和擴散在Ti6Al4V材料表面形成具有特殊物理、化學性能的合金層。X射線衍射檢測顯示滲層內形成了包含TiC,TiN的硬度相;輝光放電光譜(GDS)檢測結果顯示,在滲層內碳、氮元素分們呈梯度形式;硬度測試顯示滲層硬度由表及里呈現(xiàn)梯度下降,表面硬度提高兩倍以上;摩擦磨損檢測表明Ti6Al4V材料經無氫碳氮共滲處理后,其粘著現(xiàn)象明顯降低,摩擦系數(shù)降低一半多,耐磨性大大提高。

    Abstract:

    Using the double glow plasma metallulgy principle improve the tribological properties of Ti6Al4V. A high pure solid honeycomb graphite was taken as source cathode, titanium alloy Ti6Al4V as cathode, high pure argon and nitrogen gas as working gas, The carbonitriding Iayer with special physical and chemical properties was prepared on the surface of Ti6Al4V. The phase compositions and C. N, Ti distribution in carbonitriding layer were determined by means of XRD and glow discharge spectrometry. The surface layer microhardness distribution was measured gradually from surface to inner. Microhardness of surface increased more than two times. Results from friction and wear test show thai the wear resistance property of TifAl4V alloy is improved evidently.

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張高會 張平則 潘俊德 高原 徐重.鈦合金雙層輝光離子無氫碳氮共滲摩擦性能研究[J].稀有金屬材料與工程,2005,34(10):1646~1649.[Zhang Gaohui, Zhang Pingze, Pan Junde, Gao Yuan, Xu Zhong Taivuan University of Technology Taivuan, China). Research of Tribological Characteristics of Double Glow Plasma Hydrogen-Free Carbonitriding on Titanium Alloys[J]. Rare Metal Materials and Engineering,2005,34(10):1646~1649.]
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  • 收稿日期:2004-07-05
  • 最后修改日期:2005-07-20
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