Design of novel NiSiAlY alloys in marine salt-spray environment: Part I. Al-Si-Y and Ni-Si-Y subsystems
文献类型：期刊论文
| 作者 | Xu, Kai; Chang, Keke; Du, Yong; Wang, Liping |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2021 |
| 卷号 | 88 |
| 关键词 | TOTAL-ENERGY CALCULATIONS TERNARY PHASE-DIAGRAM ISOTHERMAL SECTION CORROSION BEHAVIOR CRYSTAL-STRUCTURES SYSTEM CE LA SM EQUILIBRIA |
| 英文摘要 | MCrAlY (M=Ni, Co, NiCo) alloys have been widely used as a bond layer for thermal barrier coatings (TBCs). However, oxides form discontinuously on MCrAlY surface in the marine environment since Cr2O3 can react with NaCl and H2O at temperatures above 500 degrees C. Replacing Cr with other alloying elements (such as Si) might prevent severe salt-spray corrosion effectively. To save time and efforts in materials design of the Ni-Si-Al-Y system, we obtained the thermodynamic descriptions of the ternary compounds by coupling the CALPHAD (CALculation of PHAse Diagrams) approach and first-principles calculations. Seven and eighteen ternary compounds were evaluated and calculated in the Al-Si-Y and Ni-Si-Y systems, respectively. Phase diagrams of the two systems were depicted after a series of experimental Al/Ni-Si-RE (RE denotes rare earth elements, including La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, and Er) systems being analyzed. It is found that the RE elements with the same reference states tend to form ternary compounds with the same crystal structures. The model-based descriptions are the basis for the research and development of novel NiSiAlY alloys in resisting high-temperature corrosion. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21376]  |
| 专题 | 2021专题_期刊论文 |
| 作者单位 | 1.Chang, KK 2.Wang, LP (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Xu, Kai,Chang, Keke,Du, Yong,et al. Design of novel NiSiAlY alloys in marine salt-spray environment: Part I. Al-Si-Y and Ni-Si-Y subsystems[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,88. |
| APA | Xu, Kai,Chang, Keke,Du, Yong,&Wang, Liping.(2021).Design of novel NiSiAlY alloys in marine salt-spray environment: Part I. Al-Si-Y and Ni-Si-Y subsystems.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,88. |
| MLA | Xu, Kai,et al."Design of novel NiSiAlY alloys in marine salt-spray environment: Part I. Al-Si-Y and Ni-Si-Y subsystems".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 88(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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