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首页> 外文期刊>International Journal of Electrochemical Science >Fabrication of Wear and Corrosion Resisting G3 Alloy-like Coating on P110 Steel by Double Glow Plasma Alloying
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Fabrication of Wear and Corrosion Resisting G3 Alloy-like Coating on P110 Steel by Double Glow Plasma Alloying

机译：双辉等离子合金化在P110钢上制备耐磨G3合金类涂层

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There is a need for oil casing tubes to resist both wear and corrosion attacks during operation. In thepresent work, a G3 alloy-like coating has been formed on P110 oil casing tube steel via double glowplasma surface alloying using a G3 alloy source electrode to improve its surface performance andprolong its service life-time. X-ray diffraction (XRD), scanning electron microscope (SEM), opticalmicroscope (OM), glow discharge optical emission spectroscope (GDOES) and micro hardness testerwere employed to analysis the phase constitution, surface morphology/composition, cross-sectionalmicrostructure, element distribution and surface hardness value of the G3 alloy-like coating. The wearresistance of the G3 alloy-like coating was measured by reciprocating type tribometer under drysliding against GCr15 steel and Si3N4 counterparts. Electrochemical measurements, open circuitpotential and potentiodynamic polarization were conducted in some CO2-saturated simulated oilfieldbrine to evaluate the anti-corrosion property of the G3 alloy-like coating. The results revealed that thereceived G3 alloy-like coating was uniform and compact. The G3 alloy-like coating with highersurface hardness had significantly improved the anti-wear property of P110 steel. The G3 alloy-likecoating had better corrosion resistance revealing by higher open circuit potential and lower corrosioncurrent density as compared with P110 steel. The formation of G3 alloy-like coating has made itpossible to enhance the anti-wear property and corrosion resistance of P110 steel.
机译：需要油套管在操作过程中抵抗磨损和腐蚀。在本工作中，使用G3合金源电极通过双重辉光等离子体表面合金化在P110石油套管钢上形成了G3合金状涂层，以改善其表面性能并延长其使用寿命。利用X射线衍射（XRD），扫描电子显微镜（SEM），光学显微镜（OM），辉光放电光发射光谱仪（GDOES）和显微硬度计分析了相的组成，表面形貌/组成，截面显微结构，元素分布和G3合金状涂层的表面硬度值。 G3合金状涂层的耐磨性是通过往复式摩擦计在与GCr15钢和Si3N4对应物干滑下进行的。在一些二氧化碳饱和的模拟盐水中进行了电化学测量，开路电势和电位动力学极化，以评估G3合金状涂层的抗腐蚀性能。结果表明，所获得的G3合金状涂层均匀且致密。具有较高表面硬度的G3合金状涂层显着提高了P110钢的耐磨性。与P110钢相比，类G3合金涂层具有更高的开路电位和更低的腐蚀电流密度，从而具有更好的耐腐蚀性。 G3类合金涂层的形成使得增强P110钢的耐磨性和耐蚀性成为可能。

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