Structure characterization and tribological properties of thick chromium coating electrodeposited from a Cr(III) electrolyte
文献类型：期刊论文
| 作者 | Liang AM(梁爱民)1,2 ; Ni LW(倪利炜)1,3; Liu Q(刘乔)1,2; Zhang JY(张俊彦)1
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| 刊名 | Surface & Coatings Technology
 |
| 出版日期 | 2013 |
| 卷号 | 218页码:23-29 |
| 关键词 | Trivalent chromium electrodeposition Chromium coating Nanocrystal graphite Wear resistance |
| ISSN号 | 0257-8972 |
| 通讯作者 | 张俊彦 |
| 英文摘要 | Uniform and flat thick Cr coating (CR3 coating) was electrodeposited from a Cr(III) electrolyte containing chromium chloride and urea under the optimized process conditions. Themicrostructure of the coating and its tribological properties under various loads was examined. Furthermore, the performance comparison of the CR3 coating with the hard Cr coating (CR6 coating) fabricated by conventional Cr(VI) electrodepositing process, and the heat-treated thick Cr coating (CR3H coating) fromthe sameCr(III) electrolyte,was performed. The result shows that the main phase of the CR3 coating is amorphous,with the nanocrystals of body-centered cubic structure chromium (bcc Cr) and graphite embedded in it. The existence of the nanocrystals of bcc Cr and graphite in Cr coatings is probably the common feature of all amorphous Cr coatings fromCr(III) electrolytes. In the scope of the bearable load of the CR3 coating, its tribological properties were a little worse than those of the CR6 coating. After annealing at 180 °C for 2 h, the wear resistance of the coating was improved to a certain extent. We found the interfacial carbon film between the CR3 coating and steel substrate, which caused poor bonding and consequently insufficient load-bearing capability of the coating. There is a need to further improve the load-bearing capability andwear resistance of the CR3 coating. In viewof the great environmental advantage of Cr(III) electrodeposition process and no difference ofwear resistance in order ofmagnitude between the CR3 coating and CR6 coating, Cr(III) electrodeposition technology is still a developing direction with promising prospect. |
| 收录类别 | SCI |
| 资助信息 | the Natural Science Foundation of Gansu Province (grant no. 096RJZA127) |
| 语种 | 英语 |
| WOS记录号 | WOS:000316422900004 |
| 公开日期 | 2013-12-25 |
| 源URL | [http://210.77.64.217/handle/362003/4897]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Northwest A&F Univ, Coll Sci, Yangling 712100, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang AM,Ni LW,Liu Q,et al. Structure characterization and tribological properties of thick chromium coating electrodeposited from a Cr(III) electrolyte[J]. Surface & Coatings Technology,2013,218:23-29. |
| APA | Liang AM,Ni LW,Liu Q,&Zhang JY.(2013).Structure characterization and tribological properties of thick chromium coating electrodeposited from a Cr(III) electrolyte.Surface & Coatings Technology,218,23-29. |
| MLA | Liang AM,et al."Structure characterization and tribological properties of thick chromium coating electrodeposited from a Cr(III) electrolyte".Surface & Coatings Technology 218(2013):23-29. |
入库方式： OAI收割
来源：兰州化学物理研究所
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