期刊
CORROSION SCIENCE
卷 195, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2021.109967
关键词
Alloy; SEM; EPMA; High temperature corrosion; Internal oxidation
资金
- National Natural Science Founda-tion of China [52071168]
- Yunnan Province Science and Technology Major Project [2019ZE001]
- Yunan Ten Thousand Talents Plan Young & Elite Talents Project [YNWR2018209]
The oxidation behavior of thermal barrier coatings with a NiCoCrAlY bond coat at 1050 degrees C in different atmospheres was studied. It was found that water vapor contributes to fewer defects and lesser internal growth of Al2O3, and excess water vapor in the air + water vapor atmosphere suppresses local inward oxide growth. Water vapor also affects the grain growth of alumina.
The oxidation behaviour of thermal barrier coatings with a NiCoCrAlY bond coat at 1050 degrees C in different atmospheres was investigated. Water vapour contributed to fewer defects and lesser internal growth of Al2O3 in the bond coat. Additionally, the presence of excess water vapour in the air + water vapour atmosphere suppressed the local inward oxide growth. Electron backscatter diffraction and transmission electron microscopy analyses were performed to investigate the influence of water vapour on the grain growth of alumina. The grain size of Al2O3 depended on the water vapour content. The driving forces for the morphological distribution of voids in various atmospheres were discussed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据