[1] Zhao Yuxin, Zhang Shaowei. A study of long-term aging stability of GH909 alloy at 700 ℃[J]. Journal of Aeronautical Materials, 2006, 26(3): 56-59.

[2] Gao Yukui, Zhao Yuxin, Yin Yuanfa. Study of recrystallization of low expansion superalloy GH909[J]. Heat Treatment of Metals, 2005, 30(1): 77-79.

[3] O Covarrubias, O Elizarraras, R Colas. Effect of heat treatment on mechanical properities of alloy 909[J]. Materials Science and Technology, 2011, 27(6): 1092-1097.

[4] Guo Xiping, Kusabiraki Kiyoshi, Saji Shigeoki. Intragranular precipitates in incoloy alloy 909[J]. Scripta Material, 2001, 44(1): 55-60.

[5] Balachander M A, Vishwakarma K, Richards N L. Overaged metallography of alloy 909, a low coefficient of expansion superalloy[J]. Materials Science and Technology, 2012, 28(3): 380-384.

[6] Wang Kai, Zhao Jianfeng, Pan Hu, et al.. Influence of repair cross section on stress-field distribution in the nickel-based superalloy laser remanufacturing[J]. Laser & Optoelectronics Progress, 2013, 50(4): 041402.

[7] Guo Shaoqing, Li Xiaohong, Mao Wei, et al.. Current research aspects of the weldability of low-expansion superalloys[J]. Aerospace Materials & Technology, 2000, (6): 5-9.

[8] Liu Chunyan, Ma Rui, Tang Caiwang, et al.. Comparison of ring-form and C-form laser welding for GH99 superalloy[J]. Chinese J Lasers, 2014, 41(8): 0803002.

[9] Guo Shaoqing, Li Xiaohong, Yuan Hong, et al.. The weldability of a new low-expansion superalloy GH909[C]. IFWT, 2004: 418-426.

[10] Yan Fei, Wang Chunming, Hu Xiyuan, et al.. Study of the process of laser welding for low expansion superalloy GH909[J]. Electric Welding Machine, 2014, 44(9): 6-9.

[11] Li Xiaohong, Mao Wei, Xiong Huaping. Welding technology of advanced aviation materials and complex components[J]. Journal of Aeronautical Materials, 2006, 26(3): 276-282.

[12] Zhao Zhiyi, Zhang Xiaofang, Zhao Haitao, et al.. Effects on precipitates of GH909 plate TIG weld under different heat treatments[J]. Materials Science & Technology, 2001, 19(3): 102-112.

[13] Xiao Rongshi, Wu Shikai. Progress on laser-arc hybrid welding[J]. Chinese J Lasers, 2008, 35(11): 1680-1685.

[14] Lei Zhenglong, Chen Yanbin, Song Guoxiang, et al.. Weld appearance of CO2 laser-gas metal arc hybrid welding for ultra-low carbon bainitic steel[J]. Chinese J Lasers, 2009, 36(11): 3068-3073.

[15] Wang Xiaonan, Chen Changjun, Zhu Guangjiang, et al.. Research progress on laser-arc hybrid welding of steel[J]. Laser & Optoelectronics Progress, 2014, 51(3): 030008.

[16] Gao Ming, Xiong Zheng, Zeng Xiaoyan, et al.. Experimental study on critical speed of laser-arc hybrid welding[J]. Chinese J Lasers, 2009, 36(9): 2438-2442.

[17] Satoru Uehiumi, Jingbo Wang, Seiji Katayama, et al.. Penetration and welding phenomena in YAG laser-MIG hybrid welding of aluminum alloy[C]. ICALEO, 2004-23rd Intemational Congress on Applications of Laser and Electro-Optics, Congress Proceedings, 2004: 530.

[18] Yan Fei, Wang Chunming, Wang Yajun, et al.. A study of the mechanism of laser welding defects in low thermal expansion superalloy GH909[J]. Materials Characterization, 2013, 78(1): 21-30.

[19] Yan Fei, Li Ruoyang, Li Jianmin, et al.. The effect of aging heat treatment on microstructure and mechanical properties of laser welded joints of alloy GH909[J]. Materials Science & Engineering A, 2014, 598(1): 62-67.