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在海洋大气腐蚀保护钢筋钢Nanocoating

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钢筋钢是一种重要的建筑材料主要是用于建筑工程。这种金属是用钢筋水泥建造桥梁和房屋。这种类型的桥梁和房屋面临腐蚀问题在沿海地区海洋大气,因为高浓度的氯离子。有几个表面疏桥梁和房屋。建筑材料内的氯离子进入和发展电化电池表面的钢筋钢。钢筋钢发生腐蚀反应的过程和创造一些形式的腐蚀,如电,点蚀,压力和裂缝。氯化物离子开发内部和外部腐蚀对钢筋钢和混凝土因此解散间发生的建筑材料。腐蚀性离子降低建筑材料的生活,增加维护成本,有时甚至重大事故发生。镁和钙的氢氧化物存在于混凝土。氯离子与氢氧根反应和降低混凝土的pH值从而加速腐蚀反应的速率。 Nanocoating of Mg3(PO4)2 with DLC filler is applied to control corrosion of rebar steel in marine atmosphere. The uncoated and coated rebar steel with Mg3(PO4)2 were exposed to marine atmosphere in different seasons like summer, rainy and winter. The corrosion rate of metal was analyzed in these seasons. The results show that though corrosion rate is minimized it does not produce good results. Porosities are developed on the surface of rebar steel coated with Mg3(PO4)2 which is reactive with chlorine ion. DLC is used as filler to close the porosities of coated rebar steel and again the corrosion rate of rebar steel was analyzed in the above mentioned seasons. It is found that this filler has good inhibition effect in marine atmosphere. The corrosion of metal was determined by gravimetric and potentiostatic polarization methods. Coating work was completed with application of nozzle sprays and vapour deposition methods. Coating efficiency, surface coverage area and stability of coating material were calculated with Arrhenius, Langmuir isotherm, Temkin equation, free energy, enthalpy and entropy

拉杰什·库马尔辛格,Sanjoy Misra

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