| Microstructure and Stress-Rupture Property of Large-Scale Complex Nickel-Based Single Crystal Casting | |
| Alternative Title | Microstructure and Stress-Rupture Property of Large-Scale Complex Nickel-Based Single Crystal Casting |
| Huang Min1; Zhang Gong1; Wang Dong1; Dong JiaSheng1; Wang Li1; Lou LangHong1 | |
| 2018 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Volume | 31Issue:8Pages:887-896 |
| Abstract | The microstructure and stress-rupture property of the large-scale complex single crystal (SX) casting DD10 were investigated in high-rate solidification process. It is found that the primary dendrite arm spacing (PDAS) does not increase monotonically with the height increase. When across the platform, the temperature gradient increases due to the effect of platform, and the corresponding PDAS decreases. The distribution of eutectic volume fraction in large-scale complex SX casting is affected by PDAS, solid back diffusion, and the development of high order dendrites. The eutectic volume fraction contained in the sample taken below the platform decreases with the height increase. While the eutectic volume fraction contained in the sample taken upper the platform increases gradually with the height increase. After heat treatment, most of the 7/7' eutectics are eliminated and the components are distributed uniformly. The similar stress rupture properties of the samples at different heights in the same direction are obtained. |
| Other Abstract | The microstructure and stress-rupture property of the large-scale complex single crystal (SX) casting DD10 were investigated in high-rate solidification process. It is found that the primary dendrite arm spacing (PDAS) does not increase monotonically with the height increase. When across the platform, the temperature gradient increases due to the effect of platform, and the corresponding PDAS decreases. The distribution of eutectic volume fraction in large-scale complex SX casting is affected by PDAS, solid back diffusion, and the development of high order dendrites. The eutectic volume fraction contained in the sample taken below the platform decreases with the height increase. While the eutectic volume fraction contained in the sample taken upper the platform increases gradually with the height increase. After heat treatment, most of the c/c0 eutectics are eliminated and the components are distributed uniformly. The similar stress rupture properties of the samples at different heights in the same direction are obtained. |
| Keyword | SUPERALLOY TURBINE-BLADES HEAT-TREATMENT HIGH-TEMPERATURE SOLIDIFICATION GROWTH SEGREGATION SIMULATION EVOLUTION Large-scale single crystal Platform Primary dendrite arm spacing Eutectic volume fraction Stress-rupture property |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Key Research and Development Program of China] ; [National Natural Science Foundation of China] |
| CSCD ID | CSCD:6303468 |
| Citation statistics |
Cited Times:3[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/155761 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国科学院金属研究所 2.中国科学院大学 |
| Recommended Citation GB/T 7714 | Huang Min,Zhang Gong,Wang Dong,et al. Microstructure and Stress-Rupture Property of Large-Scale Complex Nickel-Based Single Crystal Casting[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2018,31(8):887-896. |
| APA | Huang Min,Zhang Gong,Wang Dong,Dong JiaSheng,Wang Li,&Lou LangHong.(2018).Microstructure and Stress-Rupture Property of Large-Scale Complex Nickel-Based Single Crystal Casting.ACTA METALLURGICA SINICA-ENGLISH LETTERS,31(8),887-896. |
| MLA | Huang Min,et al."Microstructure and Stress-Rupture Property of Large-Scale Complex Nickel-Based Single Crystal Casting".ACTA METALLURGICA SINICA-ENGLISH LETTERS 31.8(2018):887-896. |
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