[1] Zhang Y S[J]. High power density diesel engine and its key technologies Vehicle Engine, 2004, 5-7,11.

[2] Wu Y, Li J P, Zhang Y J et al. Effect of heat treatment on mechanical properties and thermal conductivity of RuT300 vermicular graphite cast iron[J]. Transactions of Materials and Heat Treatment, 38, 143-151(2017).

[3] Zhang X X, Zhang G W, Xu H. Melting technology research of vemicluar graphite cast iron of RuT300[J]. Foundry Technology, 33, 1200-1202(2012).

[4] Shy Y H, Hsu C H, Lee S C et al. Effects of titanium addition and section size on microstructure and mechanical properties of compacted graphite cast iron[J]. Materials Science and Engineering: A, 278, 54-60(2000). http://www.sciencedirect.com/science/article/pii/S0921509399005997

[5] Li B H, Du X[J]. Application of CGI in the parts and components of diesel engine Foreign Locomotive & Rolling Stock Technology, 2001, 1-6,8.

[6] Yi P, Liu Y C, Shi Y J et al. Numerical simulation of dynamic laser melting behavior and temperature field on cast iron surface[J]. Transactions of the China Welding Institution, 32, 81-84, 117(2011).

[7] Wang W, Liu Q, Yang G et al. A numerical simulation for fluid flow and temperature field in the molten pool of laser cladding on titanium alloy[J]. Applied Laser, 34, 389-394(2014).

[8] Zhang C Y, Yang W, Ma C. Numerical simulation of temperature field in laser surface remelting rare earth magnesium alloy and its corrosion resistance[J]. Hot Working Technology, 46, 143-147,154(2017).

[9] Han T, Wang Y. FEM simulation of laser melting of CK45 steel[J]. Hot Working Technology, 36, 80-83(2007).

[10] Yan S X, Dong S Y, Xu B S et al. Effect of preheating temperature on microstructure and property of laser clad Ni-based alloy coating on gray cast iron substrate[J]. Journal of Materials Engineering, 43, 30-36(2015).

[11] Ding L. Effect of preheating on numerical simulation of Co based alloys by laser cladding[J]. Journal of Nanyang Institute of Technology, 5, 95-100(2013).

[12] Zhang Q B, Niu J, Zhao P Fet al. Influence of preheating temperature on cold cracking sensitivity of 12Cr10Co3W2Mo heat resistant steel[J]. 36(4): 87-, 91, 117-118(2015).

[13] Li M Y, Cai C B, Han B et al. Numerical simulation of preheating on temperature and stress fields by laser cladding Ni-based ceramic coating[J]. Transactions of Materials and Heat Treatment, 36, 197-203(2015).

[14] Chen Z, Jiao X D, Luo Y et al. Finite element analysis on influence of welding heat input under different preheat-temperatures based on SYSWELD software[J]. Hot Working Technology, 43, 164-166(2014).

[15] Xi M Z, Yu G. Numerical simulation for the transient temperature field of 3D moving laser molten pool[J]. Chinese Journal of Lasers, 31, 1527-1532(2004).

[16] Zhang Z, Han B, Wang Y et al. Effects of the shape of workpiece on temperature and stress field distribution during laser transformation hardening[J]. Chinese Journal of Lasers, 39, 0803001(2012).

[17] Derakhshan E D, Yazdian N, Craft B et al. Numerical simulation and experimental validation of residual stress and welding distortion induced by laser-based welding processes of thin structural steel plates in butt joint configuration[J]. Optics & Laser Technology, 104, 170-182(2018). http://www.sciencedirect.com/science/article/pii/S0030399217312409

[18] Tan W D, Pang M, Jiang G Y et al. Numerical simulation of laser transformation hardening temperature field of high-enhanced diesel engine valve seat[J]. Laser & Optoelectronics Progress, 55, 111601(2018).