| Designed fabrication of hard Cr—Cr2O3—Cr7C3 nanocomposite coatings for anti-wear application | |
| Department | 固体润滑国家重点实验室 |
曾志翔; 周妍 ; 张斌; 孙艳琳; 张俊彦
| |
| 2009 | |
| Source Publication | Acta Materialia
 |
| ISSN | 1359-6454 |
| Volume | 57Pages:5342-5347 |
| Abstract | Nanocrystalline Cr—Cr2O3—Cr7C3 composite coatings were fabricated by electrodeposition followed by thermal treatment. The structures of coatings were investigated using high-resolution transmission electron microscopy and X-ray diffraction analysis. The com- position, elemental chemical state, mechanical properties and wear resistance of coatings were determined using energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, nanoindentation and oscillating friction-wear testing, respectively. Wear tracks were observed by scanning electron microscopy. The results show that the as-deposited coating exhibits amorphous structure. The subsequent thermal treatment at 600 C induces the crystallization and the generation of nanoscale Cr2O3 and Cr7C3 particles in the Cr-matrix, which results in the hardness of the coating increasing to 21 GPa with slight increase in elastic modulus. Owing to the compromise between high hardness and low elastic modulus, the obtained Cr—Cr2O3—Cr7C3 composite coating exhibits excellent wear resistance. |
| Keyword | Trivalent Chromium Nanocomposite Hardness Tem Wear |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the “Hundreds Talent Program” of the Chinese Academy of Sciences;the Innovative Group Foundation from NSFC (Grant No. 50721062) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 纳米润滑研究组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/1996 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | 张俊彦 |
| Recommended Citation GB/T 7714 | 曾志翔,周妍,张斌,等. Designed fabrication of hard Cr—Cr2O3—Cr7C3 nanocomposite coatings for anti-wear application[J]. Acta Materialia,2009,57:5342-5347. |
| APA | 曾志翔,周妍,张斌,孙艳琳,&张俊彦.(2009).Designed fabrication of hard Cr—Cr2O3—Cr7C3 nanocomposite coatings for anti-wear application.Acta Materialia,57,5342-5347. |
| MLA | 曾志翔,et al."Designed fabrication of hard Cr—Cr2O3—Cr7C3 nanocomposite coatings for anti-wear application".Acta Materialia 57(2009):5342-5347. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 20095342-5347.pdf（633KB） | 开放获取 | License | View Application Full Text | |||
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