张小彬,昌霞,叶宏,张开林.铸铁电刷镀 Ni-P 和 Ni 镀层性能研究[J].表面技术,2015,44(4):27-31.
ZHANG Xiao-bin,CHANG Xia,YE Hong,ZHANG Kai-lin.Properties of Ni-P and Ni-based Coating on Cast Iron Prepared by Electro-brush Plating[J].Surface Technology,2015,44(4):27-31 |
| 铸铁电刷镀 Ni-P 和 Ni 镀层性能研究 |
| Properties of Ni-P and Ni-based Coating on Cast Iron Prepared by Electro-brush Plating |
| 投稿时间：2014-10-23 修订日期：2015-04-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2015.04.005 |
| 中文关键词: 电刷镀 铸铁 Ni 镀层 Ni-P 镀层 |
| 英文关键词:electro-brush plating cast iron Ni-based coating Ni-P coating |
| 基金项目:重庆市科委自然科学基金(cstc2013jjB50003) |
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| Author | Institution |
| ZHANG Xiao-bin | School of Material Science and Engineering, Chongqing University of Engineering, Chongqing 400050, China |
| CHANG Xia | School of Material Science and Engineering, Chongqing University of Engineering, Chongqing 400050, China |
| YE Hong | School of Material Science and Engineering, Chongqing University of Engineering, Chongqing 400050, China |
| ZHANG Kai-lin | School of Material Science and Engineering, Chongqing University of Engineering, Chongqing 400050, China |
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| 中文摘要: |
| 目的 研究利用电刷镀技术对铸铁表面进行刷镀修复。 方法 在铸铁表面电刷镀 Ni 和 Ni-P 两种镀层，观察镀层的表面形貌,分析镀层的物相组成,检测镀层结合力、耐磨性及耐蚀性等性能。 结果在铸铁表面获得了结合紧密且晶粒大小均匀、致密的 Ni-P 刷镀层。 Ni 刷镀层较 Ni-P 刷镀层晶粒细小,具有较多孔洞,结构疏松。 在相同刷镀时间下,Ni-P 刷镀层厚度约为 0. 1 mm,是 Ni 刷镀层的 2 倍;与基体的结合力为 85 N,而 Ni 刷镀层结合力为 48 N。 Ni-P 和 Ni 刷镀层均主要由 Ni,Fe10. 8Ni 和 FeNi3 组成,并含有少量的铜。 Ni-P 刷镀层的磨损质量和磨损体积最小,具有更好的耐磨性能;Ni 刷镀层由于较疏松,出现了较严重的粘着磨损和擦伤特征。 Ni-P 刷镀层的自腐蚀电位最高,腐蚀电流密度最小,具有较好的耐腐蚀性能。 结论 通过电刷镀可对铸铁表面进行修复,提高其耐蚀和耐磨性能,其中 Ni-P 刷镀层的修复效果较好。 |
| 英文摘要: |
| Objective To repair the cast iron surface by electron-brush plating. Methods The Ni-P and Ni-based coatings were prepared on cast iron by electron-brush plating. The microstructure and phase composition of the coatings were observed, and properties of the coatings such as coating adhesion, wear behavior and corrosion resistance were tested. Results Compact and dense Ni-P coating with even grains was obtained on the surface of the cast iron. Compared to the Ni-P coating, the Ni-based coating was loose and porous, with finer grains. The thickness of the Ni-P coating was about 0. 1 mm, which was 2 times as thick as that of the Ni-based coating after the same plating time. The adhesions of Ni-based and Ni-P coatings were 48 N and 85 N, respectively. Both the Ni-based and Ni-P coatings mainly consisted of Ni, Fe10. 8Ni and FeNi3 phases, and contained a small amount of Cu. The wear resistance of Ni-P coating was the best with the lowest wear quantity and volume loss. The corrosion resistance of the Ni-P electro-brush coating was the best, with the highest Ecorr and lowest self-corrosion current density. Conclusion Electron-brush plating could be used to repair the surface of cast iron by increasing its corrosion resistance and wear resistance, and the Ni-P electro-brush coating showed better properties. |
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