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離子滲氮對(duì)Cr12MoV表面CrNiTiN鍍層耐磨性和表面能的影響
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浙江工業(yè)大學(xué)

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TG174

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The Influence of Prior Plasma Nitriding on the abrasive resistance and Surface Energy of CrNiTiN Coating Formed on Cr12MoV St
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Zhejiang University of Technology

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    摘要:

    在經(jīng)過(guò)離子滲氮(PN)處理的冷作模具鋼Cr12MoV基體上，采用閉合場(chǎng)非平衡磁控濺射離子鍍法制備CrNiTiN鍍層，與非氮化的試樣進(jìn)行了膜/基結(jié)合力、耐磨性和表面能的對(duì)比。研究表明，CrNiTiN膜層具備較低的表面能，但是膜層和基體的結(jié)合力較差。Cr12MoV鋼經(jīng)離子氮化后，CrNiTiN膜層與氮化層間結(jié)合緊密，提高了膜與基體的承載能力；離子氮化處理使膜層的摩擦系數(shù)和磨損率明顯降低；離子氮化會(huì)提高CrNiTiN膜層總表面能，但不會(huì)影響表面的抗粘性能。

    Abstract:

    A nitride layer was first formed on Cr12MoV steel samples by plasma nitriding and then a CrNiTiN coating was prepared on the surface of nitrided and non-nitrided Cr12MoV steels using closed field unbalanced magnetron sputter ion plating. The coatings were characterized in terms of their structure , adhesion strength and abrasion resistance were compared between nitrided and non-nitrided Cr12MoV.The surface free energy of the coatings was calculated using the Qwens-Wendt geometric mean approach. The experimental results indicated that both low total surface energy (11.22mN/m) and poor adhesion strength (43N) could be obtained in the CrNiTiN coating. The high adhesive strength was achieved when Cr12MoV steel was treated with plasma nitriding , leading to the enhanced load strength between CrNiTiN films and substrate. The friction coefficient and wear rate of CrNiTiN coatings on plasma nitriding treated Cr12MoV steel substrate is far less than that of untreated one .The duplex treatment of plasma nitridation and CrNiTiN coatings could increase the total surface energy.

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金杰.離子滲氮對(duì)Cr12MoV表面CrNiTiN鍍層耐磨性和表面能的影響[J].稀有金屬材料與工程,2016,45(12):3325~3329.[Jin Jie. The Influence of Prior Plasma Nitriding on the abrasive resistance and Surface Energy of CrNiTiN Coating Formed on Cr12MoV St[J]. Rare Metal Materials and Engineering,2016,45(12):3325~3329.]
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  • 收稿日期:2014-09-01
  • 最后修改日期:2015-02-09
  • 錄用日期:2015-03-25
  • 在線發(fā)布日期: 2017-02-06
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