| Electrodeposition, Structure and Corrosion Resistance of Nanocrystalline Ni-W Alloy |
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| 引用本文： | 杨防祖 郭逸飞 黄令 许书楷 周绍民. Electrodeposition, Structure and Corrosion Resistance of Nanocrystalline Ni-W Alloy[J]. 中国化学, 2004, 22(3): 228-231. DOI: 10.1002/cjoc.20040220303 |
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| 作者姓名： | 杨防祖 郭逸飞 黄令 许书楷 周绍民 |
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| 作者单位： | DepartmentofChemistry,StateKeyLaboratoryforPhysicalChemistryofSolidSurfaces,InstituteofPhysicalChemistry,XiamenUniversity,Xiamen,Fujian361005,China |
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| 基金项目： | Project supported by the Natural Science Foundation of Fujian (No. E0210005) and the National Natural Science Foundation of China (No. 29773039). |
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| 摘 要： | Ni—W alloy was electrodeposited from the electrolyte solution containing sodium tungstate, nickel sulfate and ammonium citrate. The electrodeposition, heat treatment, structure, surface morphology and corrosion resistance in w=0.03 NaCl solution, of Ni-W alloys were studied by means of DSC, XRD, SEM and electrochemical techniques. The results showed that the obtained Ni-W alloy electrodeposit with W weight content (Ww=0.471) was presented in more typical nanocrystaUine, After heat treatment at 400 ℃ for 1 h, the phase structure of the deposits was not obviously changed whereas the agglomerate for the reunion of tiny grains on deposit surface caused the granule in a more smooth morphology, the microhardness was slightly increased and the corrosion resistance was enhanced.
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| 关 键 词： | 镍-钨合金 非晶态合金 电极沉积 结构 腐蚀 |
Electrodeposition, Structure and Corrosion Resistance of Nanocrystalline NiW Alloy |
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| YANG,Fang-Zu GUO,Yi-Fei. Electrodeposition, Structure and Corrosion Resistance of Nanocrystalline NiW Alloy[J]. Chinese Journal of Chemistry, 2004, 22(3): 228-231. DOI: 10.1002/cjoc.20040220303 |
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| Authors: | YANG Fang-Zu GUO Yi-Fei |
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| Affiliation: | YANG,Fang-Zu* GUO,Yi-Fei |
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| Abstract: | Ni—W alloy was electrodeposited from the electrolyte solution containing sodium tungstate, nickel sulfate and ammonium citrate. The electrodeposition, heat treatment, structure, surface morphology and corrosion resistance in w=0.03 NaCl solution, of Ni—W alloys were studied by means of DSC, XRD, SEM and electrochemical techniques. The results showed that the obtained Ni—W alloy electrodeposit with W weight content (ww=0.471) was presented in more typical nanocrystalline. After heat treatment at 400 C for 1 h, the phase structure of the deposits was not obviously changed whereas the agglomerate for the reunion of tiny grains on deposit surface caused the granule in a more smooth morphology, the microhardness was slightly increased and the corrosion resistance was enhanced. |
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| Keywords: | NiW alloy nanocrystalline electrodeposition |
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