[1] [1] Chen Rongzhang, She Li, Zhang Hongwei, et al.. Investigation of directionally solidified alloy DZ125[J]. Journal of Aeronautical Materials, 2000, 20(4): 14-19.

[2] [2] Zhang J, Lou L H. Directional solidification assisted by liquid metal cooling[J]. Journal of Material Science & Technology, 2007, 23(3): 289-300.

[3] [3] Fu H Z, Geng X G. High rate directional solidification and its application in single crystal superalloys[J]. Science and Technology of Advanced Materials, 2001, 2(1): 197-204.

[4] [4] Ge Jiangbo, Zhang Anfeng, Li Dichen, et al.. Process research on DZ125L superalloy parts by laser metal direct forming[J]. Chinese J Lasers, 2011, 38(7): 0703004.

[5] [5] Luo Yao, Pang Shengyong, Zhou Jianxin, et al.. Numerical simulation of recast layer formation in nanosecond pulse laser drilling on nickel-based high-temperature alloy[J]. Chinese J Lasers, 2014, 41(4): 0403007.

[6] [6] Do Xuantuoi, Li Dichen, Zhang Anfeng, et al.. Numerical experimental investigation on the epitaxial growth of columnar crystal in laser direct forming of DZ125L super-alloy[J]. Chinese J Lasers, 2013, 40(6): 0603008.

[7] [7] Zhong M L, Sun H Q, Liu W J, et al.. Boundary liquation and interface cracking characterization in laser deposition of Inconel 738 on directionally solidified Ni-basedsuperalloy[J]. Scripta Materialia, 2005, 53(2): 159-164.

[8] [8] Pan Hu, Zhao Jianfeng, Liu Yunlei, et al.. Controllability research on dilution ratio of nickel-based superalloys by laser cladding reparation[J]. Chinese J Lasers, 2013, 40(4): 0403007.

[9] [9] Han Jiajun, Lin Xin, Yang Haiou, et al.. Microstructure of directional solidified DZ125 nickel-base superalloy repaired by laser forming reapiring[J]. Foundry Technology, 2014, 35(10): 2320-2323.

[10] [10] Zhi Xiang, Zhao Jianfeng, Cai Jun. Effect of process parameters on gorming quality of fusion zone in laser cladding[J]. Laser & Optoelectronics Progress, 2011, 48(10): 101403.

[11] [11] Liu Qibin, Li Shaojie. Repairing of aeroengine blade with cast defect by laser cladding[J]. Heat Treatment of Metals, 2006, 31(3): 52-55.

[12] [12] Sheng Dinggao. Technology of repairing fine cast nickel-base alloy turbine blade by laser cladding[J]. Foundry Technology, 2009, 30(10): 1341-1343.

[13] [13] Doan Tatkhoa, Li Dichen, Lu Bingheng, et al.. Effect of scanning methods on the cracking of the DZ125L superalloy in laser direct metal forming[J]. Chinese J Lasers, 2012, 39(10): 1003002.

[14] [14] Hu Xiaohua, Zhang Anfeng, Li Dichen, et al.. Effects of heat treatment on microstructure and micro-hardness of laser metal forming DZ125L superalloy[J]. Journal of Materials Engineering, 2013, (2): 12-16.