[1] [1] Editorial Committee of China Aeronautical Materials Handbook. China aeronautical materials handbook［M］. Beijing: Standards Press of China, 2002.

[2] [2] Huang Qianyao, Li Hankang. Superalloy［M］. Beijing: Metallurgical Industry Press, 2000.

[3] [3] Schubert E, Klassen M, Zerner I, et al. Light-weight structures produced by laser beam joining for future application in automobile and aerospace industry［J］. J Mater Process Tech, 2001, 115(1): 2-8.

[4] [4] Wang Jiachun, Wang Xizhe, Hui Songxiao. Research of linear heat input and laser focus position for laser welding HE130 titanium alloy［J］. Chinese J Lasers, 2003, 30(2): 179-184.

[5] [5] Mls A, Turunen K, Mattila K J, et al. Analysis of laser beam weldability of Inconel 738 superalloy［J］. Mater Charact, 2010, 61: 569-574.

[6] [6] Mao Zhitao, Pu Xiaowei, Wang Weideng, et al. Comparison of welding deformation and residual stress in Q345 steel thin-plate joints induced by laser beam welding and gas metal arc welding［J］. Chinese J Lasers, 2016, 43(6): 602010

[7] [7] Guo Jianting. Materials science and engineering for superalloy (Ⅱ)［M］. Beijing: Science press, 2008.

[8] [8] Xu Tao, Gong Zailong, Shen Yangwei, et al. Study on the welding procedure of heat-resistant alloy［J］. Turbine Technology, 2005, 47(4): 313-314.

[9] [9] Yan F, Wang C M, Wang Y J, et al. A study of the mechanism of laser welding defects in low thermal expansion superalloy GH909［J］. Mater Charact, 2013, 78(4): 21-30.

[10] [10] Montazeri M, Ghaini F M. The liquation cracking behavior of IN738LC superalloy during low power Nd∶YAG pulsed laser welding［J］. Mater Charact, 2012, 67(3): 65-73.

[11] [11] Ojo O A, Richards N L, Chaturvedi M C. Contribution of constitutional liquation of gamma prime precipitate to weld HAZ cracking of cast Inconel 738 superalloy［J］. Scripta Mater, 2004, 50(5): 641-646.

[12] [12] Qu F S, Liu X G, Xing F, et al. High temperature tensile properties of laser butt-welded plate of Inconel 718 superalloy with ultra-fine grains［J］. Transactions of Nonferrous Metals Society of China, 2012, 22(10): 2379-2388.

[13] [13] Moosavy H N, Aboutalebi M R, Seyedein S H, et al. Modern fiber laser beam welding of the newly-designed precipitation-strengthened nickel-base superalloys［J］. Optics & Laser Technology, 2014, 57(4): 12-20.

[14] [14] Gong Weihuai, Chen Yuhua, Lü Zhen, et al. Microstructure and properties of 0.2 mm thick sheet GH4169 by laser microwelding［J］. Chinese J Lasers, 2011, 38(6): 0603008.

[16] [16] Zhang Yanhua. Principles of welding mechanics and structural integrity［M］. Beijing: Beijing University of Aeronautics and Astronautics Press, 2007.