本文選題：活化工藝　切入點：結(jié)合力　出處：《表面技術(shù)》2017年01期 　論文類型：期刊論文

【摘要】：目的為了提高電解鎳始極片與基體的結(jié)合力,增加鍍層耐蝕性能,改善鍍層質(zhì)量。方法通過采用不同的活化工藝對基體進行表面處理后制備鍍層,采用劃格法測試鍍層與基體的結(jié)合力,用場發(fā)射電子掃描顯微鏡觀察鍍層與基體的截面形貌,用X射線衍射儀(XRD)分析鍍層的相組成、應(yīng)力以及鍍層晶粒尺寸大小,用電化學(xué)工作站研究鍍層的耐蝕性能。結(jié)果基體經(jīng)過活化工藝處理后,鍍層與基體結(jié)合均勻、致密、完整,大幅提高了鍍層與基體的結(jié)合力,改善了鍍層質(zhì)量,鍍層內(nèi)應(yīng)力由287.2 MPa降低到220.0 MPa,并且活化工藝不會給鍍層引入其他雜質(zhì)元素以及改變晶粒尺寸大小。電化學(xué)性能測試后發(fā)現(xiàn),經(jīng)過活化工藝后的鍍層耐蝕性能增大,自腐蝕電位由-0.5481 V升高到-0.3980 V;自腐蝕電流密度由9.941μA/cm~2降低到2.927μA/cm~2。結(jié)論鈦基體經(jīng)過活化處理后,生成一層薄的活化膜,這層活化膜通過提高鈦基體的表面活性,改變鈦基體表面狀態(tài),來提高金屬電沉積層與鈦基體的結(jié)合強度,同時鍍層的綜合性能也得到了改善。
[Abstract]:Objective in order to improve the adhesion between electrolysis nickel electrode sheet and substrate, increase the corrosion resistance and improve the quality of the coating, the coating was prepared after surface treatment with different activation processes. The adhesion between the coating and the substrate was measured by grid method, the cross-section morphology of the coating and the substrate was observed by field emission electron scanning microscope, and the phase composition, stress and grain size of the coating were analyzed by X-ray diffractometer (XRD). The corrosion resistance of the coating was studied by electrochemical workstation. Results after the substrate was activated, the adhesion between the coating and the substrate was uniform, dense and complete, and the adhesion between the coating and the substrate was greatly improved, and the quality of the coating was improved. The internal stress of the coating was reduced from 287.2 MPa to 220.0 MPA, and the activation process did not introduce other impurity elements into the coating and change the grain size. After electrochemical performance test, it was found that the corrosion resistance of the coating increased after the activation process. The self-corrosion potential increased from -0.5481 V to -0.3980 V, and the corrosion current density decreased from 9.941 渭 A / cm ~ (2) to 2.927 渭 A / cm ~ (2). Conclusion after activation treatment, a thin active film is formed on titanium substrate, which can improve the surface activity of titanium substrate and change the surface state of titanium substrate. The bonding strength of the electrodeposition layer and titanium substrate was improved, and the comprehensive properties of the coating were also improved.
【作者單位】： 南昌航空大學(xué)材料科學(xué)與工程學(xué)院;
【分類號】：TG174.44;TQ153.12

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