| Co-Ti-Ta三元系富Co区的相平衡 |
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| 引用本文： | 蒋敏,萨仁格日乐,杨舒宇,李洪晓,郝士明.Co-Ti-Ta三元系富Co区的相平衡[J].中国有色金属学会会刊,2011,21(11):2391-2395. |
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| 作者姓名： | 蒋敏 萨仁格日乐 杨舒宇 李洪晓 郝士明 |
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| 作者单位： | 东北大学材料各向异性与织构教育部重点实验室; |
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| 基金项目： | Project (50771027) supported by the National Natural Science Foundation of China |
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| 摘 要： | 研究Co-Ti-Ta三元系富Co区的相平衡。显微组织和XRD分析以及EDS检测结果表明,在1000～1200℃温度范围内,L12结构Co3Ti相和Laves_36_Co3Ta相与α-Co构成相平衡。Co3Ti相中Ta的固溶度超过10%,Ta的加入使Co3Ti相更稳定。根据实验结果构建Co-Ti-Ta三元系富Co区在1000、1100和1200℃等温截面图。
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| 关 键 词： | L12型金属间化合物 相平衡 Co-Ti-Ta 钴基高温合金 |
| 收稿时间： | 30 October 2010 |
Phase equilibria in Co-rich region of Co-Ti-Ta system |
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| JIANG Min,SAREN Gerile,YANG Su-yu,LI Hong-xiao,HAO Shi-ming Key Laboratory for Anisotropy , Texture of Materials of Ministry of Education,Northeastern University,Shenyang ,China.Phase equilibria in Co-rich region of Co-Ti-Ta system[J].Transactions of Nonferrous Metals Society of China,2011,21(11):2391-2395. |
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| Authors: | JIANG Min SAREN Gerile YANG Su-yu LI Hong-xiao HAO Shi-ming Key Laboratory for Anisotropy Texture of Materials of Ministry of Education Northeastern University Shenyang China |
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| Affiliation: | JIANG Min,SAREN Gerile,YANG Su-yu,LI Hong-xiao,HAO Shi-ming Key Laboratory for Anisotropy and Texture of Materials of Ministry of Education,Northeastern University,Shenyang 110819,China |
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| Abstract: | The phase equilibria in Co-rich region of Co-Ti-Ta system were studied. The microstructure and XRD analysis together with EDS determination show that L12 type Co3Ti phase and Laves_C36_Co3Ta phase get equilibrium with α-Co phase from 1 000 to 1 200 °C. The Co3Ti phase possesses a solubility of Ta higher than 10%, and the addition of Ta stabilizes the Co3Ti phase. The isothermal sections of the Co-Ti-Ta system in the Co-rich region at 1 000, 1 100 and 1 200 °C were constructed according to the result. |
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| Keywords: | L12 type intermetallic compound phase equilibrium Co-Ti-Ta Co-based superalloys |
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