| Thermal shock cycling behavior of NiCoCrAlYSiB coatings on Ni-base superalloys - I. Accelerated oxidation attack | |
| Wang, QM; Tang, YJ; Guo, MH; Ke, PL; Gong, J; Sun, C; Wen, LS | |
| Corresponding Author | Sun, C() |
| 2005-10-15 | |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| ISSN | 0921-5093 |
| Volume | 406Issue:1-2Pages:337-349 |
| Abstract | NiCoCrAlYSiB coatings were obtained using an are ion plating technique on a directionally solidified Ni-base superalloy. Thermal shock resistance of the bare and coated specimens were investigated by cycling between high temperature (900, 1000 and 1050 degrees C) and room temperature (forced water quenching). The experienced attack during thermal shock cycling was studied by gravimetry, XRD, SEM and EDS. The results showed that bare alloys and coated specimens experienced aggravating oxidation under thermal shock cycling conditions. The coated specimens exhibited excellent thermal shock resistance and provided enough protective effect on the superalloys under thermal shock cycling conditions. The accelerated oxidation mechanism and crack formation and propagation in the coatings were also investigated. The accelerated oxidation can be attributed to the accelerating oxide formation and breakdown due to compressive stresses accumulation in the oxides due to oxide growth at high temperature and thermal mismatch during cooling. The formation and propagation of cracks formed in coatings can be attributed to tensile stresses in oxides generated by irreversible cyclic creep accumulation in the metallic coatings and the "wedging" effect of oxide protruded into the coatings. (c) 2005 Elsevier B.V. All rights reserved. |
| Keyword | thermal shock cycling arc ion plating NiCoCrAlYSiB Ni-base superalloy accelerating oxidation |
| DOI | 10.1016/j.msea.2005.06.028 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000232565100041 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/82607 |
| Corresponding Author | Sun, C |
| Affiliation | Chinese Acad Sci, Met Res Inst, Div Surface Engn & Mat, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, QM,Tang, YJ,Guo, MH,et al. Thermal shock cycling behavior of NiCoCrAlYSiB coatings on Ni-base superalloys - I. Accelerated oxidation attack[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2005,406(1-2):337-349. |
| APA | Wang, QM.,Tang, YJ.,Guo, MH.,Ke, PL.,Gong, J.,...&Wen, LS.(2005).Thermal shock cycling behavior of NiCoCrAlYSiB coatings on Ni-base superalloys - I. Accelerated oxidation attack.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,406(1-2),337-349. |
| MLA | Wang, QM,et al."Thermal shock cycling behavior of NiCoCrAlYSiB coatings on Ni-base superalloys - I. Accelerated oxidation attack".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 406.1-2(2005):337-349. |
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