Effect of solidification rate on competitive grain growth in directional solidification of a nickel-base superalloy
文献类型：期刊论文
| 作者 | Y. Z. Zhou ; X. F. Sun |
| 刊名 | Science China-Technological Sciences
 |
| 出版日期 | 2012 |
| 卷号 | 55期号:5页码:1327-1334 |
| 关键词 | competitive grain growth structure evolution directional solidification nickel alloys x-ray selection morphologies orientation prediction evolution alloy |
| ISSN号 | 1674-7321 |
| 中文摘要 | The mechanism of grain structure evolution during directional solidification is a fundamental subject in material science. Within the published research there exist conflicting views on the mechanism of grain overgrowth. To study the effect of solidification rate on grain structure evolution, bi-crystals samples were produced in a nickel-base superalloy at different solidification rates. It was found that at the convergent grain boundaries those grains better aligned with respect to the heat flux more readily overgrew neighbouring grains with misaligned orientations and the effect became more pronounced as solidification rate was increased. However, at diverging grain boundaries the rate of overgrowth was invariant to the solidification rate. These experimental results were compared with models in the literature. Thus, a better insight into competitive grain growth in directional solidification processes was obtained. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60533]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Y. Z. Zhou,X. F. Sun. Effect of solidification rate on competitive grain growth in directional solidification of a nickel-base superalloy[J]. Science China-Technological Sciences,2012,55(5):1327-1334. |
| APA | Y. Z. Zhou,&X. F. Sun.(2012).Effect of solidification rate on competitive grain growth in directional solidification of a nickel-base superalloy.Science China-Technological Sciences,55(5),1327-1334. |
| MLA | Y. Z. Zhou,et al."Effect of solidification rate on competitive grain growth in directional solidification of a nickel-base superalloy".Science China-Technological Sciences 55.5(2012):1327-1334. |
入库方式： OAI收割
来源：金属研究所
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