[1] Kang Y L, Zhu G M. Development trend of China's automobile industry and the opportunities and challenges of steels for automobiles[J]. Iron & Steel, 49, 1-7(2014).

[2] Huan P C, Wang X N, Zhu T C et al. Microstructure and mechanical properties of laser welded joint of 800 MPa grade hot-rolled high strength steel[J]. Chinese Journal of Lasers, 46, 0102002(2019).

[3] Zhu T C, Liu H L, Wang X N et al. 6(11): 1165h5[J]. properties of 2 GPa press-hardened steel joints by RSW. Materials Research Express(2019).

[4] Mayyas A T, Mayyas A R, Omar M. Sustainable lightweight vehicle design: a case study in Eco-Material selection for Body-In-White[M]. ∥Njuguna J. Lightweight composite structures in transport. New York: Elsevier, 267-302(2016).

[5] Lauter C, Tröster T, Reuter C. Hybrid structures consisting of sheet metal and fibre reinforced plastics for structural automotive applications[M]. ∥Elmarakbi A. Advanced composite materials for automotive applications. Chichester: John Wiley & Sons Ltd, 149-174(2013).

[6] Hallal A, Elmarakbi A, Shaito A et al. Advanced composite materials for automotive applications: structural integrity and crashworthiness[M]. ∥Elmarakbi A. Advanced composite materials for automotive applications. Chichester: John Wiley & Sons Ltd(2013).

[7] Sun Z, Ion J C. Laser welding of dissimilar metal combinations[J]. Journal of Materials Science, 30, 4205-4214(1995).

[8] Yu X, Luo J Q, Xiao X S et al. Research progress of high-power ultrafast fiber lasers[J]. Chinese Journal of Lasers, 46, 0508007(2019).

[9] Shome M, Tumuluru M. Introduction to welding and joining of advanced high-strength steels (AHSS)[M]. ∥ Biro E, Chatterjee S, Cretteur L, et al. Welding and joining of advanced high strength steels (AHSS). New York: Elsevier, 1-8(2015).

[10] Pouranvari M. Critical assessment 27: dissimilar resistance spot welding of aluminium/steel: challenges and opportunities[J]. Materials Science and Technology, 33, 1705-1712(2017).

[11] Hilditch T B, de Souza T, Hodgson P D. Properties and automotive applications of advanced high-strength steels (AHSS)[M]. ∥Biro E, Chatterjee S, Cretteur L, et al. Welding and joining of advanced high strength steels (AHSS). New York:: Elsevier, 9-28(2015).

[12] Speer J G, Edmonds D V, Rizzo F C et al. Partitioning of carbon from supersaturated plates of ferrite, with application to steel processing and fundamentals of the bainite transformation[J]. Current Opinion in Solid State and Materials Science, 8, 219-237(2004).

[13] Li W D, Ma L X, Peng P et al. Microstructural evolution and deformation behavior of fiber laser welded QP980 steel joint[J]. Materials Science and Engineering: A, 717, 124-133(2018).

[14] Guo W, Wan Z D, Peng P et al. Microstructure and mechanical properties of fiber laser welded QP980 steel[J]. Journal of Materials Processing Technology, 256, 229-238(2018).

[15] Li X J, Huang J, Pan H et al. Microstructure and formability of laser welding joint of QP1180 high-strength steel sheet[J]. Chinese Journal of Lasers, 46, 0302006(2019).

[16] Wang X N, Sun Q, Zheng Z et al. Microstructure and fracture behavior of laser welded joints of DP steels with different heat inputs[J]. Materials Science and Engineering: A, 699, 18-25(2017).

[17] Huan P C, Chen W G, Wang X N et al. Effect of martensite content on microstructure and properties of laser welded dual-phase steel joints[J]. Laser & Optoelectronics Progress, 55, 111406(2018).

[18] Guo P F, Wang X N, Zhu G H et al. Microstructures and properties of X100 pipeline steel joints by fiber laser welding[J]. Chinese Journal of Lasers, 44, 1202003(2017).

[19] Xia M S, Kuntz M L, Tian Z L et al. Failure study on laser welds of dual phase steel in formability testing[J]. Science and Technology of Welding and Joining, 13, 378-387(2008).

[20] Saha D C, Westerbaan D, Nayak S S et al. Microstructure-properties correlation in fiber laser welding of dual-phase and HSLA steels[J]. Materials Science and Engineering: A, 607, 445-453(2014).

[21] Zhang W Y[M]. Welding metallurgy: fundamental principle(1999).

[22] Mo S H, Yu J H, Wang J J[M]. Mechanical properties of engineering materials(2013).

[23] Shen B L, Li L, Yue C L. Summarization of relationship between tensile strength and hardness of iron-steel materials[J]. Modern Cast Iron, 32, 93-96(2012).

[24] Guo W, Li L, Dong S Y et al. Comparison of microstructure and mechanical properties of ultra-narrow gap laser and gas-metal-arc welded S960 high strength steel[J]. Optics and Lasers in Engineering, 91, 1-15(2017).