| 稀土Gd对Ti-46.5Al-2.5V-1.0Cr合金组织的影响 |
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| 引用本文： | 昌霞,司家勇,韩鹏彪,张继.稀土Gd对Ti-46.5Al-2.5V-1.0Cr合金组织的影响[J].钢铁研究学报,2009,21(9):47-47. |
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| 作者姓名： | 昌霞 司家勇 韩鹏彪 张继 |
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| 作者单位： | 钢铁研究总院高温材料研究所,北京,100081 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 通过光学金相和扫描电镜观察分析了Ti-46.5Al-2.5V-1.0Cr（at.%）合金中添加微量稀土Gd对合金铸态和变形组织的影响。发现，含稀土Gd的TiAl合金铸造组织晶粒尺寸细小；变形宏观组织中均匀变形区较大，变形组织动态再结晶的体积分数高，层片分解较完全。
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| 关 键 词： | TiAl合金 稀土元素 铸态组织 变形组织 |
| 收稿时间： | 2008-06-03; |
Effect of Rare Earth Element Gd on Microstructure of Ti-46.5AI-2. 5V-1.0Cr Alloy |
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| CHANG Xia,SI Jia-yong,HAN Peng-biao,ZHANG Ji.Effect of Rare Earth Element Gd on Microstructure of Ti-46.5AI-2. 5V-1.0Cr Alloy[J].Journal of Iron and Steel Research,2009,21(9):47-47. |
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| Authors: | CHANG Xia SI Jia-yong HAN Peng-biao ZHANG Ji |
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| Abstract: | This paper studied the effects of 0.15at.% Gd on the cast and forged microstructure of Ti-46.5Al-2.5V-1.0Cr alloy. The results show that Gd addition can refine the cast microstructure and enlarge the homogenous zone of forged TiAl. The volume fraction of recrystalization is higher and the lamellas are broken down more completely than those of the alloy without Gd. |
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| Keywords: | TiAl alloy rare earth element cast microstructure deformation microstructure |
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