不同电流密度下电沉积纳米晶NiP合金涂层的表征

IF 1.1 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Iranian Journal of Materials Science and Engineering Pub Date : 2021-09-10 DOI:10.22068/IJMSE.2237

F. Lekmine, H. Temam, E. G. Temam

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引用次数: 1

摘要

以硫酸盐浴为原料，在不同的电流密度下，采用电沉积方法制备了镍磷合金镀层。SEM研究表明，球形晶粒以均匀分布的方式覆盖整个表面。EDX结果显示，随着电流密度的增加，已开发沉积物中的P含量呈线性增加，导致晶粒尺寸增加和硬度值下降。XRD研究揭示了低磷含量（10.88wt.%）的单晶正交合金。腐蚀试验结果表明，1A.dm-2是最佳的外加电流密度，可提供更高的Ecorr（-171.4 mV）和更低的icorr（4.64μA/cm2）。

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Characterization of Nanocrystalline NiP Alloy Coatings Electrodeposited at Various Current Densities

Nickel phosphorus alloy coatings were prepared by electrodeposition route from sulfate electrolyte bath at various current densities. SEM studies revealed that spherical grains covered the entire surface with uniform distribution. EDX results showed a linear increase of P content in the developed deposits with current density, causing an increase in the grains size and a drop in hardness values. XRD studies revealed monocrystalline orthorhombic alloys at low phosphorus content (10.88 wt. %). Corrosion test results showed that 1 A.dm-2 is the best applied current density providing the nobler Ecorr (-171.4 mV) and the lower icorr (4.64 μA/cm2).

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来源期刊

Iranian Journal of Materials Science and Engineering MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

1.30

自引率

10.00%

发文量

审稿时长

18 weeks