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首页> 外文期刊>Japanese journal of applied physics >Preparation and characterization of Ni-TiN nanocomposites prefabricated by jet pulse electrodeposition
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Preparation and characterization of Ni-TiN nanocomposites prefabricated by jet pulse electrodeposition

机译：喷射脉冲电沉积制备的Ni-TiN纳米复合材料的制备与表征

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In this report, jet pulse electrodeposition (JPED) was employed to deposit Ni-TiN nanocomposites on mild steel substrates. Effects of jet rate on cross-sectional composition distribution, microstructure, microhardness, and corrosion properties of the obtained nanocomposites were studied by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), atomic force microscopy (AFM), high-resolution transmission electron microscopy (HRTEM), microhardness testing, and electrochemistry. Results revealed the presence of high concentrations of Ni (54.7 at. %) and Ti (17.6 at. %) particles across throughout the thickness of composites prepared at 3 m/s. Nanocomposites prepared at 3 m/s exhibited uniform and smooth morphologies, with exiguous grains and an arithmetic mean roughness (R-a) of similar to 23.61 nm. Also, nanocomposites prepared at 3 m/s showed smaller nickel grains than those obtained at 1 and 5 m/s. I-corr and E-corr of Ni-TiN nanocomposites formed at 3 m/s were respectively minimum at 2.093 x 10(-2) mA/cm(2) and -0.462 V, confirming higher corrosion resistance. The microhardness values of Ni-TiN nanocomposites prepared at jet rates of 1, 3, and 5 m/s were respectively maximum at 751.5, 862.8, and 814.2 HV, respectively. (C) 2018 The Japan Society of Applied Physics
机译：在此报告中，采用喷射脉冲电沉积（JPED）在低碳钢基材上沉积Ni-TiN纳米复合材料。通过X射线光电子能谱（XPS），扫描电子显微镜（SEM），原子力显微镜（AFM），高光谱研究了喷射速率对所得纳米复合材料的截面组成分布，显微组织，显微硬度和腐蚀性能的影响。分辨率透射电子显微镜（HRTEM），显微硬度测试和电化学。结果表明，在以3 m / s的速度制备的复合材料的整个厚度范围内，均存在高浓度的Ni（54.7 at。％）和Ti（17.6 at。％）颗粒。以3 m / s的速度制备的纳米复合材料表现出均匀，光滑的形貌，具有明显的晶粒和近似于23.61 nm的算术平均粗糙度（R-a）。同样，以3 m / s的速度制备的纳米复合材料显示出比以1和5 m / s的速度捕捉的纳米颗粒更小的镍颗粒。以3 m / s形成的Ni-TiN纳米复合材料的I-corr和E-corr分别在2.093 x 10（-2）mA / cm（2）和-0.462 V时最小，证实具有更高的耐腐蚀性。以1、3和5 m / s的喷射速率制备的Ni-TiN纳米复合材料的显微硬度值分别分别在751.5、862.8和814.2 HV时最大。 （C）2018日本应用物理学会

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