| Modification of NiCoCrAlY with Pt: Part II. Application in TBC with pure metastable tetragonal (t ') phase YSZ and thermal cycling behavior | |
| Yu, Chuntang1,2; Liu, He1,2; Jiang, Chengyang1,3; Bao, Zebin1; Zhu, Shenglong1; Wang, Fuhui3 | |
| Corresponding Author | Bao, Zebin(zbbao@imr.ac.cn) |
| 2019-03-01 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 35Issue:3Pages:350-359 |
| Abstract | A thermal barrier coating system comprising Pt-modified NiCoCrAlY bond coating and nanostructured 4 mol.% yttria stabilized zirconia (4YSZ, hereafter) top coat was fabricated on a second generation Ni-base superalloy. Thermal cycling behavior of NiCoCrAlY-4YSZ thermal barrier coatings (TBCs) with and without Pt modification was evaluated in ambient air at 1100 degrees C up to 1000 cycles, aiming to investigate the effect of Pt on formation of thermally grown oxide (TGO) and oxidation resistance. Results indicated that a dual layered TGO, which consisted of top (Ni,Co)(Cr,Al)(2)O-4 spinel and underlying alpha-Al2O3, was formed at the NiCoCrAlY/4YSZ interface with thickness of 8.4 mu m, accompanying with visible cracks at the interface. In contrast, a single-layer and adherent alpha-Al2O3 scale with thickness of 5.6 mu m was formed at the interface of Pt-modified NiCoCrAlY and 4YSZ top coating. The modification of Pt on NiCoCrAlY favored the exclusive formation of alpha-Al2O3 and the reduction of TGO growth rate, and thus could effectively improve overall oxidation performance and extend service life of TBCs. Oxidation and degradation mechanisms of the TBCs with/without Pt-modification were discussed. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Pt-modification NiCoCrAlY Thermal barrier coating (TBC) Thermal cycling Thermally grown oxide (TGO) |
| Funding Organization | National Natural Science Foundation of China ; Defense Industrial Technology Development Program ; Liaoning BaiQianWan Talents Program |
| DOI | 10.1016/j.jmst.2018.09.040 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51,671,202] ; National Natural Science Foundation of China[51,301,184] ; Defense Industrial Technology Development Program[JCKY2016404C001] ; Liaoning BaiQianWan Talents Program |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000454506800016 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/131087 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Bao, Zebin |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Corrosion & Protect Div, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Northeastern Univ, Corrosion & Protect Div, Shenyang Natl Lab Mat Sci, Shenyang 110819, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Yu, Chuntang,Liu, He,Jiang, Chengyang,et al. Modification of NiCoCrAlY with Pt: Part II. Application in TBC with pure metastable tetragonal (t ') phase YSZ and thermal cycling behavior[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(3):350-359. |
| APA | Yu, Chuntang,Liu, He,Jiang, Chengyang,Bao, Zebin,Zhu, Shenglong,&Wang, Fuhui.(2019).Modification of NiCoCrAlY with Pt: Part II. Application in TBC with pure metastable tetragonal (t ') phase YSZ and thermal cycling behavior.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(3),350-359. |
| MLA | Yu, Chuntang,et al."Modification of NiCoCrAlY with Pt: Part II. Application in TBC with pure metastable tetragonal (t ') phase YSZ and thermal cycling behavior".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.3(2019):350-359. |
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