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题名: The correlation between the hardness and tribological behaviour of electroplated chromium coatings sliding against ceramic and steel counterparts
作者: Zeng, Zhixiang;  Wang, Liping;  Chen, Li;  Zhang, Junyan
关键词: rare earth ;  hardness ;  wear resistance ;  wear mechanism ;  counterpart
刊名: SURFACE & COATINGS TECHNOLOGY
发表日期: 2006-12-04
DOI: 10.1016/j.surfcoat.2006.03.038
卷: 201, 期:6, 页:2282-2288
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Materials Science, Coatings & Films ;  Physics, Applied
研究领域[WOS]: Materials Science ;  Physics
英文摘要: Electroplated chromium (Cr) coatings with different hardness were clectrodeposited on steel substrate through adjusting the concentration of rare earth in a Sargent bath (CrO(3) 250 g/l, H(2)SO(4) 2.5 g/l). The results show that with a Si(3)N(4) ceramic counterpart, the wear rate of electroplated Cr coatings increases with the increase of the hardness owing to the delamination wear mechanism; while with a steel counterpart, the wear rate of electroplated Cr coatings decreases with increasing hardness thanks to the abrasion wear mechanism. The wear mechanism may be dictated by the adhesive force between the sliding pairs and the possibility of abrasive particles formation that weak adhesive force between the ceramic counterpart and electroplated Cr coatings can hardly result in the adhesion, transfer of material and formation of abrasive particles on the ttibosurface of the electroplated Cr coating, and the frictional shear energy tends to transform to dislocation and deformation energy stored inside the material instead of friction heat; therefore, the delamination wear is more likely to occur on the tribosurface. Whereas, the strong adhesive force between the steel counterpart and electroplated Cr coatings will result in the adhesion, transfer of material and formation of the abrasive particles on the tribosurface, the frictional shear energy would be allowed to transform to cutting and plough energy; hence, the adhesive and abrasive wear may occur. (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: DELAMINATION THEORY ;  ABRASIVE WEAR ;  COMPOSITE ;  METALS ;  FILMS
语种: 英语
WOS记录号: WOS:000244831800022
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140020
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Zeng, Zhixiang,Wang, Liping,Chen, Li,et al. The correlation between the hardness and tribological behaviour of electroplated chromium coatings sliding against ceramic and steel counterparts[J]. SURFACE & COATINGS TECHNOLOGY,2006,201(6):2282-2288.
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