| A novel phosphate-ceramic coating for high temperature oxidation resistance of Ti65 alloys | |
| Han, Rifei1,2; Tariq, Naeem Ul Haq1,3; Li, Jiayi1,2; Kong, Lingyan1; Liu, Jianrong1; Shan, Xiurong1; Cui, Xinyu1; Xiong, Tianying1 | |
| Corresponding Author | Kong, Lingyan(lykong@imr.ac.cn) |
| 2019-12-15 | |
| Source Publication | CERAMICS INTERNATIONAL
 |
| ISSN | 0272-8842 |
| Volume | 45Issue:18Pages:23895-23901 |
| Abstract | A novel phosphate-ceramic coating was developed for high-temperature oxidation protection of Ti65 titanium alloy. Aluminum phosphate binder was strategically mixed with Al2O3 + SiC ceramic particles as the filler material and subsequently deposited on Ti65 titanium alloy by air spraying. High temperature oxidation behavior of the Ti65 substrate was studied in coated and un-coated state by performing series of isothermal oxidation and thermal shock tests at 650 degrees C. Microstructural and thermal evolutions under different conditions were investigated using scanning electron microscopy (SEM), electron-probe microanalysis (EPMA) and X-ray diffraction (XRD). It was revealed that under uncoated condition, the Ti65 alloy experienced severe oxidation and developed non-protective TiO2 oxide film. In contrast, phosphate-ceramic coated Ti65 alloy exhibited excellent oxidation resistance with small weight gain (0.35 mg/cm(2)) compared with that of the uncoated Ti65 alloy (1.05 mg/cm(2)). Microscopy results confirmed absence of TiO2 oxide scales at the coating-substrate interface. The significant enhancement in the oxidation resistance of the Ti65 alloy was attributed to the dense nature of the phosphate-ceramic protective coating with great thermal and chemical stability. Furthermore, the coating exhibited excellent thermal shock resistance for having compatible thermal expansion coefficient with the Ti65 alloy substrate. |
| Keyword | Ceramic coating Ti65 alloy High-temperature oxidation Amorphous aluminum phosphate |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1016/j.ceramint.2019.06.218 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[50902131] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Ceramics |
| WOS ID | WOS:000497245400004 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/135973 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Kong, Lingyan |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Pakistan Inst Engn & Appl Sci, Dept Met & Mat Engn, Islamabad, Pakistan |
| Recommended Citation GB/T 7714 | Han, Rifei,Tariq, Naeem Ul Haq,Li, Jiayi,et al. A novel phosphate-ceramic coating for high temperature oxidation resistance of Ti65 alloys[J]. CERAMICS INTERNATIONAL,2019,45(18):23895-23901. |
| APA | Han, Rifei.,Tariq, Naeem Ul Haq.,Li, Jiayi.,Kong, Lingyan.,Liu, Jianrong.,...&Xiong, Tianying.(2019).A novel phosphate-ceramic coating for high temperature oxidation resistance of Ti65 alloys.CERAMICS INTERNATIONAL,45(18),23895-23901. |
| MLA | Han, Rifei,et al."A novel phosphate-ceramic coating for high temperature oxidation resistance of Ti65 alloys".CERAMICS INTERNATIONAL 45.18(2019):23895-23901. |
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