[1] [1] Lippold J C. Weldability of commercial aluminum-lithium alloys［C］. In Proceedings of the 5th International Aluminum-Lithium Alloy Conference, Williamsburg, 1989: 1365-1375.

[2] [2] Gupta R K, Nayan N, Nagasireesha G. Development and characterization of Al-Li alloys［J］. Materials Science and Engineering A, 2006, 420(1): 228-234.

[3] [3] Yang Shoujie, Lu Zheng, Su Bin, et al.. Development of Aluminum-Lithium alloys［J］. Journal of Materials Engineering, 2001,(5): 44-48.

[4] [4] Zuo Tiechuan, Xiao Rongshi, Chen Kai, et al.. Laser Materials Processing of High Strength Aluminum Alloys［M］. Beijing: National Defense Industry Press, 2000: 25-27,47-165.

[5] [5] Schumacher J, Zerner I, Neye G, et al.. Laser beam welding of aircraft fuselage structures［C］. Proceedings of ICALEO, 2008: 838-845.

[6] [6] Xiao R S, Zhang X Y. Problems and issues in laser beam welding of Aluminum-Lithium alloys ［J］. Journal of Manufacturing Processes, 2014, 16(2): 166-175.

[7] [7] Xiao Rongshi, Yang Wuxiong, Chen Kai. Porosity characterization in laser welds of Al-Li alloy 1420［J］. Applied Laser, 2007, 27(1): 13-17.

[8] [8] Yang Wuxiong, Zhang Xinyi, Xiao Rongshi. Dual-beam laser welding of T-joint of Aluminum-Lithium alloy 2060-T8/2099-T83［J］. Chinese J Lasers, 2013, 40(7): 0703001.

[9] [9] Lin Kaili, Yang Wuxiong, Lü Junxia, et al.. Laser beam welding of Aluminum-Lithium alloy 2198-T851［J］. Chinese J Lasers, 2014, 41(1): 0103007.

[10] [10] Cross C E, Olson D L, Edwards G R, et al.. Weldability of Aluminum-Lithium alloys: Proceedings of second international Aluminium-Lithium conference［J］. 1984: 675-682.

[11] [11] Zhuang Lei, Luo Yu, Wang Yajun, et al.. Study on tensile property of 1420 Al-Li alloy laser welding joint［J］. Welding Technology, 2006, 35(4): 21-22.

[12] [12] Huang Min, Li Guoai, Zhang Kun, et al.. Laser welding characteristics of 2A97 Al-Li alloy［J］.Transactions of the China Welding Institution, 2014, 35（5）：100-105.

[13] [13] Cui Li, Li Xiaoyan, He Dingyong, et.al.. Microstructure investigation of NdYAG laser welded 5A90 Aluminium-Lithium alloys ［J］. Transactions of the China Welding Institution, 2010, 31(9): 77-84.

[14] [14] Zou Jianglin, Wu Shikai, Xiao Rongshi, et al.. Comparison of melting efficiencyin high power fiber laser and CO2 laser welding［J］. Chinese J Lasers, 2013, 40(8): 0803002.