[1] ZHANG M Q, LIU Y, LI CH L. Brief analysis on reactor coolant pump of pressurized water reactor nuclear power plant AP1000 ［J］. Water Pump Technology, 2008, (4): 1-5. (in Chinese)

[2] GUAN R, GAO Y J. Brief analysis on fabrication process of AP1000 reactor coolant pump can ［J］. China Nuclear Power, 2008, 1(1): 49-53. (in Chinese)

[3] LIN CH G. Passive Safe Advanced Nuclear Power Plant AP1000［M］. Beijing: Atomic Energy Press, 2008. (in Chinese)

[4] ZHUANG Y P. Application of AP1000 canned motor pump ［J］. Electric Power Construction, 2010, 31(11): 98-101.(in Chinese)

[5] WU D J, YIN B, ZHOU Q J, et al.. Nd:YAG Laser beam welding invar36 alloy sheet ［J］. Opt. Precision Eng., 2009, 17(3): 557-562. (in Chinese)

[6] SHI Y, ZHANG H, TAKEHIRO WATANABE, et al.. CW/PW dual-beam YAG laser welding of steel/aluminum alloy sheets ［J］. Chinese Journal of Lasers, 2010, 37 (4): 1132-1137.(in Chinese)

[7] MA G Y, WU D J, WANG ZH H, et al.. Weld joint forming of thin Hastelloy C-276 sheet of pulsed laser welding ［J］. Chinese Journal of Lasers， 2011, 38(6):0603014. (in Chinese)

[8] WU D J, WANG ZH H, MA G Y, et al.. Analysis of fluid flow and heat transfer in weld pool during pulsed laser welding Hastelloy C-276 alloy ［J］. Opt. Precision Eng., 2012, 20(3): 534-540. (in Chinese)

[9] LONG H, GERY D, CARLIER A, et al.. Prediction of welding distortion in butt joint of thin plates ［J］. Materials and Design, 2009, 30(10): 4126-4135.

[10] MUHAMMAD Z A, DANIEL N, JEANFRANCOIS J, et al.. Prediction of laser beam welding-induced distortions and residual stresses by numerical simulation for aeronautic application ［J］. Journal of Materials Processing Technology, 2009, 209(6):2907-2917.

[11] MUHAMMAD Z A, DANIEL N, JEANFRANCOIS J, et al.. Experimental investigation and nite element simulation of laser beam welding induced residual stresses and distortions in thin sheets of AA 6056-T4 ［J］. Materials Science and Engineering A, 2010, 527(12):3025-3039.

[12] ZHANG J Q, ZHAO H Y, LU A L, et al.. Effects of clamps on welding distortion in thin aluminum alloy plate ［J］. Rare Metal Materials and Engineering, 2009, 38(Supp 3):165-169. (in Chinese)

[13] ZHANG Z L, SHI Q Y,YAN D Y et al.. Establishment and application of fixture constraint models in finite element analysis of welding process ［J］. Acta Metallurgica Sinica, 2010, 46(2): 189-194. (in Chinese)

[14] RICHTER F. Die thermophysikalischen eigenschaften der hochwarmfesten nickel-basislegierungen HASTELLOY S, HASTELLOY X und HASTELLOY C276 zwischen 20 and 1000℃ ［J］. Metall, 1988, 42(12): 1188-1191.

[15] DE A, MAITI S K, WALSH C A, et al.. Finite element simulation of laser spot welding ［J］. Science and Technology of Welding and Joining, 2003, 8(5): 377-384.