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Characterization of Ni-P coating on AZ91D magnesium alloy with surfactants and nano-additives

作     者:Mohammed Sahal 

作者机构:Department of Mechanical EngineeringNIT CalicutKeralaIndia 

出 版 物:《Journal of Magnesium and Alloys》 (镁合金学报(英文))

年 卷 期:2014年第2卷第4期

页      面:293-298页

学科分类:08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程(可授工学、理学学位)] 

主  题:Surfactants Magnesium Nano-additives Scanning electron microscopy 

摘      要:Direct electroless Ni-P plating was done on AZ91D magnesium alloy by immersing magnesium AZ91D samples into a bath containing Nickel *** nucleation mechanism of Ni-P deposits on the AZ91D magnesium alloy in the presence of surfactants and nano-additives was studied by using *** electroless Ni-P deposits were preferentially nucleated on the β Mg_(17)Al_(12) phase of AZ91D magnesium ***-P coating was coated uniformly in the presence of *** of surfactant C-Tab with varying quantities was *** of surfactant C-Tab homogenized the Ni-P deposition on AZ91D magnesium alloy *** effect produced by surfactant C-Tab was maximum with minimum addition(1 g/l)of surfactant C-Tab further increase in the surfactant C-Tab quantity did not brought much changes in *** of surfactant SLS was studied using *** SLS when incorporated in small amounts(6 g/l and 12 g/l)only exerted a slight influence in Ni-P deposition on AZ91D alloy *** Ni-P deposition was more uniform and spread throughout the surface with the addition of SLS surfactant(18 g/l).Effect of nano additives Al_(2)O_(3),ZnO,SiO_(2) were *** additive Al_(2)O_(3) enhanced the deposition of Ni-P on AZ91D alloy when added in 0.6 g/l ***_(2) addition also gave the same *** addition influenced the Ni-P deposition on AZ91D alloy ***-P surface coating was coated more uniform and spread throughout the surface with the addition of surfactants and nano-additives.

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