2000•Journal of Xiamen UniversityRequires access

Effect of Current Density on the Structure and Microhardness of Ni-W-B Alloy Electrodeposit

Niu Zhen-jiang

Abstract

Effects of current density on the electrodeposition, structure and microhardness of Ni-W-B alloy electrodeposit were studied by means of electrochemical technique, XRD and DSC. The result showed that, by the increase of current density W content in deposit was increased and B content decreased, also deposition current efficiencies decreased. The obtained NiWB alloy electrodeposit was in metastable nanocrystalline structure. The microhardness of the alloy obtained under different current densities were kept almost the same at the value near to 650 kg/mm2, which was obviously higher than that of Ni-W alloy.

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Key concepts: Indentation hardness, Alloy, Current density, Nanocrystalline material, Materials science, Metallurgy, Current (fluid), Deposition (geology)