| Element diffusion and interface characteristics between NiCrAlY coating and Ni-base single crystal superalloy | |
| Li, MH; Sun, XF; Zhang, ZY; Hu, WY | |
| Corresponding Author | Li, MH(mhli@imr.ac.cn) |
| 2004 | |
| Source Publication | RARE METAL MATERIALS AND ENGINEERING
 |
| ISSN | 1002-185X |
| Volume | 33Issue:1Pages:55-58 |
| Abstract | A NiCrAlY coating was deposited on a Ni-base superalloy substrate by magnetron sputtering. The elemental diffusion and the microstructural change in the interface zone between the NiCrAlY coating and the substrate were investigated. It was shown that the elemental distribution in the as-sputtered NiCrAlY coating was homogeneous and had an abrupt change at the interface between the substrate and coating. During vacuum heat treatment, microstructure changed and a phase transformation took place in the coating because of interdiffusion between the substrate and coating. An interdiffusion layer (outer and inner diffusion layer) appeared and two new phases, gamma-Ni3Al and alpha-Cr, emerged from local Cr-rich regions in the coating. After 200h oxidation at 1000 degreesC, the interdiffusion layer thickened, beneath which diffusion influence layer emerged because of the further diffusion of elements. Ta replaced some of the Al in the gamma-Ni3Al phase, resulting in an increase of the lattice parameter alpha(0) of gamma phase. |
| Keyword | NiCrAlY coating Ni-base single crystal superalloy interdiffusion microstructure |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000188932200014 |
| Publisher | NORTHWEST INST NONFERROUS METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/119214 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, MH |
| Affiliation | 1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.Hunan Univ, Changsha 410082, Peoples R China |
| Recommended Citation GB/T 7714 | Li, MH,Sun, XF,Zhang, ZY,et al. Element diffusion and interface characteristics between NiCrAlY coating and Ni-base single crystal superalloy[J]. RARE METAL MATERIALS AND ENGINEERING,2004,33(1):55-58. |
| APA | Li, MH,Sun, XF,Zhang, ZY,&Hu, WY.(2004).Element diffusion and interface characteristics between NiCrAlY coating and Ni-base single crystal superalloy.RARE METAL MATERIALS AND ENGINEERING,33(1),55-58. |
| MLA | Li, MH,et al."Element diffusion and interface characteristics between NiCrAlY coating and Ni-base single crystal superalloy".RARE METAL MATERIALS AND ENGINEERING 33.1(2004):55-58. |
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