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SiC增強(qiáng)Ti-6Al-4V合金微弧氧化陶瓷層的摩擦磨損性能
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北方工業(yè)大學(xué)機(jī)械與材料工程學(xué)院,北方工業(yè)大學(xué)機(jī)械與材料工程學(xué)院,北方工業(yè)大學(xué)機(jī)械與材料工程學(xué)院,北方工業(yè)大學(xué)機(jī)械與材料工程學(xué)院,北方工業(yè)大學(xué)機(jī)械與材料工程學(xué)院

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國家自然科學(xué)基金(項(xiàng)目號51575004)和北京市自然科學(xué)基金(項(xiàng)目號3162010)資助


Tribological Behaviors of Ceramic Coatings Fabricated by Micro-arc Oxidation with Additions of SiC Micro-particles for Ti-6Al-4V Alloys
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College of Mechanical and Materials Engineering,North China University of Technology,College of Mechanical and Materials Engineering,North China University of Technology,College of Mechanical and Materials Engineering,North China University of Technology,College of Mechanical and Materials Engineering,North China University of Technology,College of Mechanical and Materials Engineering,North China University of Technology

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    摘要:

    采用微弧氧化方法，通過在電解液中摻雜不同粒徑碳化硅顆粒，在Ti-6Al-4V合金表面制備含不同粒徑碳化硅的陶瓷膜層。利用掃描電子顯微鏡、X射線衍射儀和摩擦磨損實(shí)驗(yàn)機(jī)研究了膜層的微觀形貌、結(jié)構(gòu)物相以及摩擦磨損性能。實(shí)驗(yàn)結(jié)果表明，碳化硅對鈦合金微弧氧化膜層表面形貌以及摩擦磨損性能影響顯著，較小粒徑碳化硅顆粒引入微弧氧化膜層可以顯著降低微弧氧化膜層孔隙率，增強(qiáng)膜層表面致密度，較大提高膜層減摩耐磨性能。其中1~2μm粒徑的碳化硅對膜層耐磨性的提高效果最為顯著。較大粒徑碳化硅難以通過尺度較小的微弧氧化孔進(jìn)入微弧氧化層，減摩耐磨性能提高較小。

    Abstract:

    By adding SiC micro-particles with different sizes to the electrolyte, micro-arc oxidation (MAO) technique was employed to fabricate oxide ceramic layer of Ti-6Al-4V alloys reinforced by SiC micro-particles. Scanning electron microscope, X-ray diffractometer and ball-on-disk sliding tester were used to analyze surface topography, phase composition and tribological properties of the prepared samples, respectively. The result showed that SiC micro-particles have significant effects on the surface topography and tribological properties of the reinforced layer. SiC particles with smaller sizes would reduce the porosity and improve the density and tribological property of Ti-6Al-4V alloys dramatically, especially for SiC particles with the diameter of 1~2μm. By contrast, larger SiC particle can not go through the pores in the oxide layer for its larger size, so that the wear resistance property of the oxidation layer was improved slightly.

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劉峰斌,孫大超,崔巖,曹雷剛,楊越. SiC增強(qiáng)Ti-6Al-4V合金微弧氧化陶瓷層的摩擦磨損性能[J].稀有金屬材料與工程,2018,47(4):1314~1318.[Liu Fengbin, Sun Dachao, Cui Yan, Cao Leigang, Yang Yue. Tribological Behaviors of Ceramic Coatings Fabricated by Micro-arc Oxidation with Additions of SiC Micro-particles for Ti-6Al-4V Alloys[J]. Rare Metal Materials and Engineering,2018,47(4):1314~1318.]
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  • 收稿日期:2016-03-17
  • 最后修改日期:2016-04-27
  • 錄用日期:2016-05-19
  • 在線發(fā)布日期: 2018-05-31
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