Oxidation Behavior and Oxide Transformation of a Pt-Modified Aluminide Coating at Moderate High Temperature
文献类型：期刊论文
| 作者 | Li, Yanyan2,3; Li, Shuai2,3; Zhang, Chao1; Xu, Na2; Bao, Zebin2,3 |
| 刊名 | CRYSTALS
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 11期号:8页码:14 |
| 关键词 | Pt-modified aluminide coating alumina scale single crystal superalloy microstructure isothermal oxidation |
| DOI | 10.3390/cryst11080972 |
| 通讯作者 | Xu, Na(naxu@imr.ac.cn) ; Bao, Zebin(zbbao@imr.ac.cn) |
| 英文摘要 | The oxidation performance of a single-phase Pt-modified aluminide coating was assessed in oxidation test at 980 degrees C in comparison with the single crystal superalloy. The results suggested that the Pt-modified aluminide coating exhibited superior oxidation resistance. During oxidation, the oxide scale formed on bare alloy changed constantly followed by the constitution of the multi-layer scale structure: An outer scale mainly consisted of Cr2O3 + NiCr2O4 + TiO2 with scarce protection, and an internal scale mainly consisted of Al2O3. The thickness of the outer oxide scale increased with time, where the scale became looser and more porous. Meanwhile, the internal scale was discontinuous. Oxygen and nitrogen inwardly diffused into substrate, forming Ta2O5 and TiN particles. In contrast to the complex constitution of oxide scale, a uniform and continuous Al2O3 scale formed on Pt-modified aluminide-coated samples after oxidation at 980 degrees C for 1500 h, which showed no spallation and cracking. Interestingly, theta-Al2O3 and alpha-Al2O3 phases remained after such a long oxidation time. It is the relatively lower temperature and the presence of Pt retarded theta-alpha transformation. The degradation rate from beta-NiAl to gamma '-Ni3Al was very slow in the coating. The various development of oxide scale on the coating and substrate was individually studied. |
| 资助项目 | R & D Program in Key Fields of Guangdong Province[2019B010936001] ; National Engineering Laboratory for Marine and Ocean Engineering Power System-Laboratory for Ocean Engineering Gas Turbine |
| WOS研究方向 | Crystallography ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000688860900001 |
| 出版者 | MDPI |
| 资助机构 | R & D Program in Key Fields of Guangdong Province ; National Engineering Laboratory for Marine and Ocean Engineering Power System-Laboratory for Ocean Engineering Gas Turbine |
| 源URL | [http://ir.imr.ac.cn/handle/321006/166831]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xu, Na; Bao, Zebin |
| 作者单位 | 1.703 Res Inst CSSC, Natl Engn Lab Marine & Ocean Engn Power Syst, Honghu Rd 35, Harbin 150078, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Wencui Rd 62, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Wenhua Rd 72, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yanyan,Li, Shuai,Zhang, Chao,et al. Oxidation Behavior and Oxide Transformation of a Pt-Modified Aluminide Coating at Moderate High Temperature[J]. CRYSTALS,2021,11(8):14. |
| APA | Li, Yanyan,Li, Shuai,Zhang, Chao,Xu, Na,&Bao, Zebin.(2021).Oxidation Behavior and Oxide Transformation of a Pt-Modified Aluminide Coating at Moderate High Temperature.CRYSTALS,11(8),14. |
| MLA | Li, Yanyan,et al."Oxidation Behavior and Oxide Transformation of a Pt-Modified Aluminide Coating at Moderate High Temperature".CRYSTALS 11.8(2021):14. |
入库方式： OAI收割
来源：金属研究所
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