| Toughness measurement and toughening mechanisms of arc ion plating Cr2O3 films treated by annealing | |
| Department | 先进润滑与防护材料研究发展中心 |
He NR(何乃如)1,2 ; Li HX(李红轩)1; Ji L(吉利)1; Liu XH(刘晓红)1; Zhou HD(周惠娣)1; Chen JM(陈建敏)1; Li HX(李红轩); Chen JM(陈建敏)
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| The second department | 固体润滑国家重点实验室 |
| 2015 | |
| Source Publication | Ceramics International
 |
| ISSN | 0272-8842 |
| Volume | 41Issue:8Pages:9534-9541 |
| Abstract | Chromium sesquioxide (Cr2O3) films were deposited on Ni-based high-temperature alloy substrates by an arc ion plating technique and then annealed at different temperatures and heating rates. The influence of annealing conditions on the toughness of Cr2O3 films was calculated according to spherical indentation tests. The increase in grain size and compressive stress, variety of microstructure and surface morphology, and atom diffusion that resulted from annealing caused toughness variations. The increase in grain size closed micro-cracks along the direction of film growth. Compressive stress and a multi-crystal plane led to cracks caused by indentation that required more energy to break through the film. In the process of indentation, turning, bifurcating, and bridging of cracks on film surface was also able to dissipate energy. Atom diffusion in the process of 1000 ℃ annealing also played a role in grain boundary toughening. The toughness improvement of Cr2O3 film significantly improved friction life. |
| Keyword | Cr2o3 Film Annealing Toughness Measurement Toughen Mechanisms Friction Life |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.ceramint.2015.04.012 |
| Funding Organization | the National 973 Program of China (No. 2013CB632302);the National Natural Science Foundation of China (Grant no. 51175491) |
| Indexed By | SCI |
| If | 2.758 |
| Language | 英语 |
| Funding Project | 磨损与表面工程课题组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/7449 |
| Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Li HX(李红轩); Chen JM(陈建敏) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | He NR,Li HX,Ji L,et al. Toughness measurement and toughening mechanisms of arc ion plating Cr2O3 films treated by annealing[J]. Ceramics International,2015,41(8):9534-9541. |
| APA | He NR.,Li HX.,Ji L.,Liu XH.,Zhou HD.,...&陈建敏.(2015).Toughness measurement and toughening mechanisms of arc ion plating Cr2O3 films treated by annealing.Ceramics International,41(8),9534-9541. |
| MLA | He NR,et al."Toughness measurement and toughening mechanisms of arc ion plating Cr2O3 films treated by annealing".Ceramics International 41.8(2015):9534-9541. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Toughness measuremen（2360KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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