小角X射线散射研究2091Al-Li合金δ′相的生长

小角X射线散射研究2091Al-Li合金δ′相的生长

徐跃¹, 李永华², 宇博¹, 田华³, 孟繁玲⁴，郑伟涛⁴

1. 吉林大学测试科学试验中心, 长春 130023; 2. 东北大学秦皇岛分校基础部, 秦皇岛066004;3. 北华大学师范理学院物理系, 吉林 132013; 4. 吉林大学材料科学与工程学院材料科学系, 长春 130012

收稿日期:2004-06-11 修回日期:1900-01-01 出版日期:2005-03-26 发布日期:2005-03-26
通讯作者: 孟繁玲

Coarsening Behavior of δ′ Phase in 2091 Al-Li Alloy by SAXS

XU Yue¹, LI Yong-hua², YU Bo¹, TIAN Hua³, MENG Fan-ling⁴， ZHENG Wei-tao⁴

1. Test Science Experiment Center, Jilin University, Changchun 130023, China; 2. Division of Basic Courses, Northeastern University at Qinhuangdao, Qinhuangdao 066004, Hebei Province, China; 3. Department of Physics, College of Sciencs, Beihua University, Jilin 132013, Jilin Province, China; 4. Department of Materials Science, College of Material Sciences and Engineering, Jilin University, Changchun 130012, China

Received:2004-06-11 Revised:1900-01-01 Online:2005-03-26 Published:2005-03-26
Contact: MENG Fan-ling

摘要/Abstract

摘要： 采用小角X射线散射技术对2091Al-Li合金时效过程中 δ′相的生长机制和相界特性进行了研究. 结果表明, 在时效初期, 析出的δ′相粒子与基体之间存在过渡界面层, 这说明δ′相是通过调幅分解形成的. 在时效后期, δ′相粒子与基体之间有清晰的界面, 表明δ′相粒子是以成核生长的方式进行的.

关键词: Al-Li合金, δ′相, 小角X射线散射

Abstract: A small angle X-ray scattering (SAXS) technique was used to characterize the interfaces between the δ′ phase and matrix in 2091 Al-Li alloy aged at 150 ℃ for different times. The results show that a interfacial layer exists between the δ′ phase and matrix at aged earlier stage, which disappears at aged later stage.

Key words: Al-Li alloy, δ′ phase, small angle X-ray scattering

中图分类号:

TG113.12

徐跃, 李永华, 宇博, 田华, 孟繁玲，郑伟涛. 小角X射线散射研究2091Al-Li合金δ′相的生长[J]. J4, 2005, 43(02): 194-196.

XU Yue, LI Yong-hua, YU Bo, TIAN Hua, MENG Fan-ling， ZHENG Wei-tao. Coarsening Behavior of δ′ Phase in 2091 Al-Li Alloy by SAXS[J]. J4, 2005, 43(02): 194-196.

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