| Phase composition and tribological properties of Ti–Al coatings produced on pure Ti by laser cladding | |
| Department | 固体润滑国家重点实验室 ; 先进润滑与防护材料研究发展中心 |
郭宝刚; 周健松 ; 张世堂; 周惠娣; 蒲玉萍; 陈建敏
| |
| 2007 | |
| Source Publication | Applied Surface Science
 |
| ISSN | 0169-4332 |
| Volume | 253Pages:9301-9310 |
| Abstract | Ti–Al coatings with 14.7, 18.1, 25.2 and 29.7 at.% Al contents were fabricated on pure Ti substrate by laser cladding. The laser cladding Ti–Al coatings were analyzed with X-ray diffraction (XRD), scanning electron microscope (SEM) and X-ray energy dispersive spectroscopy (EDS). It was found that with the increase of Al content, the diffraction peaks shifted gradually to higher 2u values. The laser cladding Ti–Al coatings with 14.7 and 18.1 at.% Al were composed of a-Ti and a2-Ti3Al phases, while those with 25.2 and 29.7 at.% Al were composed of a2-Ti3Al phase. With the increase of Al content, the cross-sectional hardness increased, while the fracture toughness decreased. For the laser cladding Ti–Al coatings, when the Al content was 18.1 at.%, the wear mechanism was adhesive wear and abrasive wear; while when the Al content 25.2 at.%, the wear mechanism was adhesive wear, abrasive wear and microfracture. With the increase of Al content, the wear rate of laser cladding Ti–Al coatings decreased under 1 N normal load, while the wear rate firstly decreased and then increased under a normal load of 3 N. Due to its optimized combination of high hardness and high fracture toughness, the laser cladding Ti–Al coating with 18.1 at.% Al showed the best anti-wear properties at higher normal load. |
| Keyword | Laser Cladding Ti–al Coating Phase Composition Tribological Properties |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the National Natured Science Foundation of China (Grant No.5057521);the Innovative Group Foundation from NSFC (Grant No.50421502);“The program of the light in China's western region (2006)” |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 磨损和表面工程组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4099 |
| Collection | 固体润滑国家重点实验室（LSL） 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 |
| Corresponding Author | 陈建敏 |
| Recommended Citation GB/T 7714 | 郭宝刚,周健松,张世堂,等. Phase composition and tribological properties of Ti–Al coatings produced on pure Ti by laser cladding[J]. Applied Surface Science,2007,253:9301-9310. |
| APA | 郭宝刚,周健松,张世堂,周惠娣,蒲玉萍,&陈建敏.(2007).Phase composition and tribological properties of Ti–Al coatings produced on pure Ti by laser cladding.Applied Surface Science,253,9301-9310. |
| MLA | 郭宝刚,et al."Phase composition and tribological properties of Ti–Al coatings produced on pure Ti by laser cladding".Applied Surface Science 253(2007):9301-9310. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 20079301-9310.pdf（2362KB） | 开放获取 | CC BY-NC-SA | View Application Full Text | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment