| 快速凝固Ti-48Al合金的组织及纳米硬度(英文) |
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| 引用本文： | 王宏伟,朱冬冬,邹鹑鸣,魏尊杰.快速凝固Ti-48Al合金的组织及纳米硬度(英文)[J].中国有色金属学会会刊,2011(Z2):328-332. |
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| 作者姓名： | 王宏伟 朱冬冬 邹鹑鸣 魏尊杰 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院;燕山大学亚稳材料制备技术与科学国家重点实验室; |
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| 基金项目： | Project(200806)supported by the State Key Laboratory of Metastable Materials Science and Technology,China |
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| 摘 要： | 研究冷却速度对熔体旋转法制备的快速凝固Ti-48%Al合金组织的影响。结果表明:同传统凝固相比,快速凝固明显细化了Ti-48%Al合金的组织,并使合金的成分变得均匀。随着冷却速度的增加,合金的晶粒明显细化。研究薄带厚度、辊速与冷却速度的关系。随着辊速的增加,冷却速度增加,薄带厚度呈减小的趋势。由于细晶强化的作用,快速凝固薄带的纳米硬度随着冷却速度的增加而增加。
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| 关 键 词： | 快速凝固 组织 冷却速度 钛铝金属间化合物 |
Microstructure and nanohardness of Ti-48%Al alloy prepared by rapid solidification under different cooling rates |
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| WANG Hong-wei ,ZHU Dong-dong ,ZOU Chun-ming ,WEI Zun-jie . School of Materials Science , Engineering,Harbin Institute of Technology,Harbin ,China,. State Key Laboratory of Metastable Materials Science , Technology,Yanshan University,Qinhuangdao.Microstructure and nanohardness of Ti-48%Al alloy prepared by rapid solidification under different cooling rates[J].Transactions of Nonferrous Metals Society of China,2011(Z2):328-332. |
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| Authors: | WANG Hong-wei ZHU Dong-dong ZOU Chun-ming WEI Zun-jie School of Materials Science Engineering Harbin Institute of Technology Harbin China State Key Laboratory of Metastable Materials Science Technology Yanshan University Qinhuangdao |
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| Affiliation: | WANG Hong-wei 1,2,ZHU Dong-dong 1,ZOU Chun-ming 1,WEI Zun-jie 1 1. School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China,2. State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004 |
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| Abstract: | The influence of cooling rate on the microstructure and nanohardness of the rapidly solidified Ti-48%Al alloys prepared by melt spinning method was studied. The results show that the microstructure of the rapidly solidified ribbons is refined and homogenized compared with that of the conventionally cast mother alloy. With increasing the cooling rate, the grain size decreases greatly. The relationship between the ribbon thickness and the wheel speed was examined, and the effect of the wheel speed on the cool... |
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| Keywords: | rapid solidification microstructure cooling rate TiAl intermetallics |
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