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| 铝锂合金及其在航天工业上的应用 | |
| 引用本文： | 李劲风.铝锂合金及其在航天工业上的应用[J].宇航材料工艺,2012,42(1):13-19. |
| 作者姓名： | 李劲风 |
| 作者单位： | 1. 中南大学材料科学与工程学院,长沙410083;教育部有色金属材料科学与工程重点实验室,长沙410083 2. 中南大学材料科学与工程学院,长沙,410083 3. 航天材料及工艺研究所,北京,100076 |
| 摘 要： | 综述了铝锂合金发展的三个阶段及三个阶段铝锂合金的性能特点。重点阐述了Cu、Li等主合金元素以及Mg、Ag、Zn、Mn、Sc、Zr、In和稀土Ce等微合金化元素在第三代铝锂合金中的合金化作用;这些微合金化元素可改变合金中原有析出相的尺寸、形状、分布,或促使新的强化相析出,也可以细化晶粒、控制再结晶。总结了铝锂合金在航天工业中的应用实践及在将来的应用计划。 |
| 关 键 词： | 铝锂合金 微合金元素 合金化作用 航天应用 |
Al-Li Alloys and Their Application in Aerospace Industry |
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| Li Jinfeng , Zheng Ziqiao , Chen Yonglai , Zhang Xuhu.Al-Li Alloys and Their Application in Aerospace Industry[J].Aerospace Materials & Technology,2012,42(1):13-19. | |
| Authors: | Li Jinfeng Zheng Ziqiao Chen Yonglai Zhang Xuhu |
| Institution: | 1 School of Materials Science and Engineering,Central South University,Changsha 410083)(2 The Key Laboratory of Nonferrous Metal Science and Engineering,Ministry of Education,Changsha 410083)(3 Aerospace Research Institute of Materials & Processing Technology,Beijing 100076) |
| Abstract: | The three development stages of Al-Li alloys and their corresponding property features are briefly reviewed.The alloying function of main alloying elements Cu and Li and the micro-alloying elements Mg,Ag,Zn,Mn,Sc,Zr,In and rare earth Ce are discussed in detail.The micro-alloying elements can modify the size,morphology and distribution of the precipitates,or stimulate the precipitation of the new strengthening phase in Al-Li alloys,and in addition,are able to refine the grain structure and control the recrystallization.Meanwhile,the practical application and future application plans of Al-Li alloys in aerospace industry are summarized. |
| Keywords: | Al-Li alloy Micro-alloying elements Alloying function Application in aerospace |
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