激光表面处理铝-锂合金的组织与性能
姚大平,胡壮麒,李依依,张匀,师昌绪
摘要(Abstract)：
本文研究了激光表面处理对一种使用状态的铝-锂合金组织与性能的影响。实际结果表明,与基材的未再结晶+局部再结晶组织不同,在激光重熔区内,邻近基材是细小的等轴晶区;与此层相邻的是平行于热流方向的拉长晶粒区,心部则为粗大等轴晶粒组织。加快激光束扫描速度,可细化重熔区内晶粒而使显微硬度提高。在时效处理时,激光重熔区比基材硬度要高,而两者的断口形貌则差别不大。
关键词(KeyWords)：
基金项目(Foundation):
作者(Author): 姚大平,胡壮麒,李依依,张匀,师昌绪
Email:
DOI:
参考文献(References)：
- [1] T. H Sanders, Jr. and E. A. Starke, Jr. eds., Alumimum-Lithium Alloys, TMS-AIME, Warrendale, PA 1981
- [2] T. H. Sanders, Jr. and E. A. Starke, Jr., eds. Aluminum-Lithium Alloys Ⅱ, TMS-AIME, Warrendale, PA1983
- [3] C. Baker, P. J. Gregson, S. J. Harris and C. J. Peel, eds., Aluminum-Lithium Alloys Ⅲ, Institute of Metals, London, 1986
- [4] G. Champier, B. Dubost, D. Miannay and L. Sabetay, eds., Aluminum-Lithium Alloys Ⅳ, Journal de physiouue, Paris, 1987
- [5] S. C. Hsu, S. Chakravorty and R. Mehrabian, Metall. Trans., 9(1978) 221
- [6] V. Laxmanan, Acta Metall., 33(1985) 1023
- [7] Zhao Qi, Hu Zhuangqi, Ge Yunlong, Jiang Ming and Shi Changxu, Chin. J. Met. Sci. Technol., 2(4) , (1986) 254
- [8] Hu Zhuangqi, Ge Yunlong, Jiang Ming, Jiang Xiaoping, Zhao Qi and Zhang Jishan, Chin. J. Met. Sci. Technol., 4 (3) (1988) 134
- [9] 葛云龙,胡壮麒,高薇,师昌绪,金属学报,20(2) (1984) 71
- [10] D. P. Yao, Z. Q. Hu, Y. Y. Li, Y. Zhang and C. X. Shi, The Mierostructures of Rapidly Solidified Al-Li-Cu-Zr Alloy By Laserglazing, Aluminum-Lithium Alloys V, Williamsburg, Virginia, Virginia, Mar, 1989