本文選題：機械研磨 + 鋅鐵合金��； 參考：《東北石油大學》2017年碩士論文

【摘要】：鋅鐵合金鍍層在工業(yè)生產(chǎn)中具有重要意義,對鋼鐵件具有很好的保護作用,隨著技術(shù)的發(fā)展和金屬材料應用環(huán)境的不斷惡化,采用新技術(shù)制備鋅鐵合金鍍層變得越來越重要,對于鋅鐵合金鍍層的研究,前人多集中在鍍液配方的改進之中,本論文采用了機械研磨的方法制備鋅鐵合鍍層,并對鍍層性能進行了深入研究。本論文通過在電鍍鋅鐵合金的過程中,添加研磨球,對鍍層施加機械研磨作用,改變電鍍過程中的液相傳質(zhì)、電化學轉(zhuǎn)化和電沉積步驟,制備機械研磨鋅鐵合金鍍層。通過改變試驗參數(shù),制備了不同參數(shù)下的機械研磨鋅鐵合金鍍層,利用失重腐蝕法、電化學測試法、力學性能測試法等研究方法,對不同參數(shù)下的機械研磨鋅鐵合金鍍層進行研究。揭示了電流密度、研磨球密度、研磨球直徑、研磨頻率等試驗參數(shù)對鍍層性能的影響,通過正交試驗法,獲得了最優(yōu)鍍層性能的試驗參數(shù),當電流密度為2A/dm2,研磨球密度為11.3g/cm3,研磨球直徑為7mm,頻率為9Hz時,獲得的機械研磨鍍層性能最好。同時,利用極化曲線測試技術(shù)、電化學阻抗譜測試技術(shù)和掃描電子顯微鏡,對鍍層進行深入研究,總結(jié)了機械研磨鋅鐵合金鍍層的耐蝕規(guī)律。
[Abstract]:The zinc-ferroalloy coating is of great significance in industrial production and has a good protective effect on iron and steel parts. With the development of technology and the deterioration of the application environment of metal materials, it becomes more and more important to use new technology to prepare zinc-ferroalloy coating. For the study of zinc-ferroalloy coating, most of the predecessors focused on the improvement of the solution formulation. In this paper, the mechanical grinding method was used to prepare the zinc-ferroalloy coating, and the properties of the coating were studied deeply. In this paper, mechanical grinding of zinc ferroalloy coating was carried out by adding grinding ball in the process of electroplating, changing the liquid phase mass transfer, electrochemical transformation and electrodeposition steps in the electroplating process. By changing the test parameters, the mechanical grinding zinc-ferroalloy coating with different parameters was prepared. The methods of weight-loss corrosion, electrochemical testing and mechanical property testing were used. The mechanical grinding of zinc ferroalloy coating with different parameters was studied. The effects of current density, ball density, ball diameter and grinding frequency on the properties of the coating are revealed. Through orthogonal test, the optimum parameters of coating performance are obtained. When the current density is 2A / dm ~ 2, the ball density is 11.3g / cm ~ 3, the diameter of the ball is 7mm and the frequency is 9Hz, the mechanical lapping coating has the best performance. At the same time, the electrochemistry impedance spectroscopy (EIS) and scanning electron microscope (SEM) were used to study the corrosion resistance of Zn-Fe alloy coating by means of polarization curve test, electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM).
【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TG174.4;TQ153.2

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