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Assistant professor
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Ning Jie
中文姓名 宁杰

Email:   j_ning@xjtu.edu.cn

  • Research interests:

1) Laser welding & Laser hybrid welding

2) Laser additive manufacturing of various metals.

3) Ultrafast laser processing of various materials.

4) Simulation on the behaviors of molten pool and keyhole based on CFD

  • Experience：

  • 1) 2021.1-2023.12, National Natural Science Foundation of China, Study on the dynamic behavior and regulation mechanism of molten pool/keyhole during fiber laser welding under hyperbaric condition.

  • 2) 2021.1-2023.12, Chinese Postdoctoral Foundation project, Study on the ultrasonic standing wave assisted laser welding of the pure copper hairpin end weld used on the flat wire motor.

  • 3) 2023.1-2024.12, State Key Laboratory of Special Rare Metal Materials, Study on the laser welding of Nb521-GH3128 dissimilar materials.

  • 4) 2022.1-2024.12, Xian Jiaotong University, Research on welding and corrosion characteristics of new heat-resistant light alloy.


  • Education：

  • 03/2016—12/2019 Materials Processing Engineering, Xi’an Jiaotong University, Ph.D

  • 09/2017—09/2018 Materials Processing Engineering, Purdue University, Joint training Ph. D

  • 09/2013—03/2016 Materials Processing Engineering, Xi’an Jiaotong University, M.S.

  • 09/2009—06/2013 Materials Science and Engineering, Shijiazhuang Tiedao Unibersity, Bachelor.

  • Representative Publications：

[1] Ning J，Cheng PX, Qin KJ, Zhang LJ*, Na SJ. Effects of Cu addition on the microstructures and properties of WC-12Co cemented carbides additively manufactured by laser powder-bed fusion. 3D Printing and Additive Manufacturing, 2022, Accepted.

[2] Ning J, Wen JH, Zhang LJ*, Na SJ. Assessment of the universality of duplex stainless steel powder in laser additive repair based on Schaeffler diagram. Additive Manufacturing. 2022, 55:102864.

[3] Ning J, Zhang HB,Chen SM, Zhang LJ*, Na SJ. Intensive laser repair through additive manufacturing of high-strength martensitic stainless steel powders (II): evaluation of intensive repair ability of high strength martensitic steel powder based on Schaeffler diagram. 2022, 16: 1494-1507.

[4] Ning J, Na SJ*, Zhang LJ, Wang X, Long J, Cho WI*. Improving thermal efficiency and stability of laser welding process for magnesium alloy by combining power modulation and subatmospheric environment. J Magnes Alloy 2022, 10, 10: 2788-2800.

[5] Ning J, Suck JN, Wang CH, Zhang LJ*. A comparison of laser-metal inert gas hybrid welding and metal inert gas welding of high-nitrogen austenitic stainless steel. J Mater Res Technol. 2021.05. Accepted.

[6] Ning J, Zhang HB, Chen SM, Zhang LJ*, Na SJ. Intensive laser repair through additive manufacturing of high-strength martensitic stainless steel powders (I)- powder preparation, laser cladding and microstructures and properties of laser-cladded metals. Journal of materials Research and Technology. 2021, 15: 5741-5761.

[7] Ning J, Zhang LJ*, Yang BY, Ma RY. Improved quality of resistance spot welded joints for molybdenum sheets in lap configuration by adding titanium interlayer. Mater Res Exp 2021, https://doi.org/10.1088/2053-1591/ac083d

[8] Wang X, Zhang LJ*, Ning J*, Li S, Na SJ. Effect of addition of micron-sized lanthanum oxide particles on morphologies, microstructures and properties of the wire laser additively manufactured Ti-6Al-4V alloy. Mat Sci Eng A 2021, 10.1016/j.msea.2020.140475.

[9] Wang X, Zhang LJ*, Ning J*, Li S, Zhang LL, Long J. Hierarchical grain refinement during the laser additive manufacturing of Ti-6Al-4V alloys by the addition of micron-sized refractory particles. Addit Manuf 2021 https://doi.org/10.1016/j.addma.2021.102045

[10] Ma ZX , Ning J*, Yu B, Zhang LJ, et al. Effects of process parameters and scanning patterns on quality of thin-walled copper flanges manufactured by selective laser melting [J]. Journal of Manufacturing Processes, 2021, 72: 419-430.

[11] Ma ZX, Cheng PX, Ning J, Zhang LJ Na SJ. Innovations in Monitoring, Control and Design of Laser and Laser-Arc Hybrid Welding Processes [J]. Metals, 2021, 11: 1910.

[12] Zhou XR, Ning J, Na SJ, Zhang LJ. Microstructures and properties of the dissimilar joint of pure molybdenum/T2 copper by single-mode laser welding [J]. International Journal of Refractory Metals and Hard Materials, 2021, 101: 105667.

[13] Ma W, Ning J, Zhang LJ, Na SJ. Regulation of microstructures and properties of molybdenum silicon boron alloy subjected to selective laser melting [J]. Journal of Manufacturing Processes, 2021,69: 593-601.

[14] Ning J, Yu ZS, Sun K, Hu MJ, Zhang LX, Zhang YB, Zhang, LJ. Comparison of microstructures and properties of X80 pipeline steel additively manufactured based on laser welding with filler wire and cold metal transfer. J Mater Res Technol 2020, https://doi.org/10.1016/j.jmrt.2020.12.021.

[15] Ning J, Zhang LJ, Zhang LL, Long J, Yin XQ, Zhang JX, Na SJ. Effects of power modulation on behaviours of molten pool and keyhole during laser–arc hybrid welding of pure copper. Mater & Des 2020, 10.1016/j.matdes.2020.108829.

[16] Wen J H, Zhang L J*, Ning J*, Xue F, Lei X W, Zhang J X, Na S J . Laser additively manufactured intensive dual-phase steels and their microstructures, properties and corrosion resistance, Mater & Des 2020, 10870.

[17] Li S, Zhang L J*, Ning J*, Wang X, Zhang G F, Na S J, Fatemeh B. Comparative study on the microstructures and properties of wire+arc additively manufactured 5356 aluminium alloy with argon and nitrogen as the shielding gas, Addit Manuf 2020, 101206.

[18] Long J, Zhang L J*, Zhang L L, Ning J, Yin X Q, Zhang J X, Na S J. Fiber laser spot welding of molybdenum alloy in a hyperbaric environment, Opt Exp 2020, 28(6): 7843-7857.

[19] Ning J, Zhang LJ*, Han CQ, Zhang HB, Lei XW, Han BF. Fiber laser welding characteristics of the butt welded joint of novel ultralight Mg-10.1Li-3.1Al-2.9Zn alloy. Mater Res Express 2019, 6(10): 106545.

[20] Ning J, Zhang LJ*, Yin XQ, Zhang JX, Na SJ. Mechanism study on the effects of power modulation on energy coupling efficiency in infrared laser welding of high-reflectivity materials. Mater & Des 2019, 178(15): 10871.

[21] Ning J, Zhang LJ*, Yang JN, Yin XQ, Wang XW, Wu J. Characteristics of multi-pass narrow-gap laser welding of D406A ultra-high strength steel. J Mater Process Tech 2019, 270:168-181.

[22] Ning J, Hong KM, Inamke GV, Shin YC*, Zhang LJ. Analysis of microstructure and mechanical strength of lap joints of TZM alloy welded by a fiber laser. J Manuf Process 2019, 39:146-159.

[23] Ning J, Zhang LJ*, Bai QL, Yin XQ, Niu J, Zhang JX. Comparison of the microstructure and mechanical performance of 2A97 Al-Li alloy joints between autogenous and non-autogenous laser welding. Mater & Des 2017, 120:144–156.

[24] Ning J, Zhang LJ*, Jiang GC, Xie MX, Yin XQ, Zhang JX. Narrow gap multi-pass laser butt welding of explosion welded CP-Ti/Q235B bimetallic sheet by using a copper interlayer. J Alloys Compd 2017, 701: 587-602.

[25] Ning J, Zhang LJ*, Sun MJ, Yin XQ, Niu J, Zhang JX. Studies of the characteristics and size effects of softened zone of laser welded 20MnTiB joint. J Mater Process Tech 2017, 243:405-419.

[26] Ning J, Zhang LJ*, Na SJ, Yin XQ, Niu J, Zhang JX, Wang HR. Numerical study of the effect of laser-arc distance on laser energy coupling in pulsed Nd: YAG laser/TIG hybrid welding. Int J Adv Manuf Technol 2017, 91(1129-1143).

[27] Ning J, Zhang XJ, Zhang LJ*. Research of the energy coupling behavior in modulated fiber laser welding of high reflectivity AZ31 Mg alloy. Rare Metal Mat Eng 2017, 46(5):1437-1444.

[28] Ning J, Zhang LJ*, Xie MX, Yang HX, Yin XQ, Zhang JX. Microstructure and property inhomogeneity investigations of bonded Zr/Ti/Steel trimetallic sheet fabricated by explosive welding. J Alloys Compd 2016, 698:835–851.

[29] Ning J, Zhang LJ*, Wang A, Bai QL, Yang JN, Zhang JX. Effects of double-pass welding and extrusion on properties of fiber laser welded 1.5-mm thick T2 copper joints. J Mater Process Tech 2016, 237:75-87.

[30] Ning J，Zhang XJ，Zhang LJ*.Progress of the Application of Laser in Copper Weldin. Laser Journal , 2015, 36(3):1-6.Zhang LJ*, Ning J, Zhang XJ, Zhang GF, Zhang JX. Single pass hybrid laser–MIG welding of 4-mm thick copper without preheating. Mater & Des 2015, 74:1-18.

[31] Zhang L J, Zhang G F, Bai X Y, Ning J*, Zhang X J (2016). Effect of the process parameters on the three-dimensional shape of molten pool during full-penetration laser welding process. Int J Adv Manuf Technol 2016, 86(5-8):1-14.

[32] Zhang , Zhang X J, Ning J* , Zhang J X. Modulated fiber laser welding of high reflective AZ31. Int J Adv Manuf Techno 2014, 76(1-4):721-733.

[33] Zhang L L, Zhang L J*, Long J, Ning J, Zhang J X, Na S J. Effects of titanium on grain boundary strength in molybdenum laser weld bead and formation and strengthening mechanisms of brazing layer. Mater & Des 2019, 169: 107681.

[34] Zhang L J, Liu J Z*, Pei J Y, Ning J, Zhang L L, Long J, Zhang G F, Zhang J X, Na S . Effects of Power Modulation, Multipass Remelting and Zr Addition Upon Porosity Defects in Laser Seal Welding of End Plug to Thin-Walled Molybdenum Alloy. J Manuf Proces 2019, 41: 197–207.

[35] Zhang L J, Lu G F*, Ning J, Zhu Q, Zhang J X, Na S J (2019). Effects of minor Zr addition on the microstructure and mechanical properties of laser welded dissimilar joint of titanium and molybdenum. Mater Sci Eng A 2019, 742: 788-797.

[36] Zhang LJ*, Lu GF, Ning J, Zhang LL, Long J, Zhang GF. Influence of Beam Offset on Dissimilar Laser Welding of Molybdenum to Titanium. Materials 2018, 11(10):1852.

[37] Yang J N, Zhang L J*, Ning J, Bai Q L, Pei J Y, Liu J Z, Lu G F, Zhang J X. Fiber laser welding characteristics of commercially pure zirconium (R60702) and structure-mechanics-corrosion performances of the joint. Int J Refract Met H, 2018, 73:58-73.

[38] Lu G F, Zhang L J*, Pei Y, Ning J, Zhang J X. Study on the Size Effects of H-Shaped Fusion Zone of Fiber Laser Welded AZ31 Joint. Metals 2018, 8: 198.

[39] Yang J N, Zhang L J*, Ning J, Bai Q L, Yin X Q, Zhang J X. Single-pass hybrid laser-MIG welding of 8-mm-thick pure copper (T2) without preheating: weld geometry and integrity. Int J Adv Manuf Technol, 2017, 91(9-12): 3749-3773.

[40] Yang JN, Zhang LJ*, Ning J, Bai QL, Yin XQ, Zhang JX. Single pass laser-MIG hybrid welding of 8 mm thick pure copper T2 without preheating microstructure and properties. Appl therm Eng 2017, 126:867-883.

[41] Zhang L J, Bai Q L*, Ning J, et al. A comparative study on the microstructure and properties of copper joint between MIG welding and laser-MIG hybrid welding. Mater & Des 2016, 110:35-50.

[42] Zhang L J, Zhang G F*, Ning J, Zhang X J, Zhang J X. Microstructure and properties of the laser butt welded 1.5-mm thick T2 copper joint achieved at high welding speed. Mater & Des 2015, 88:720-736.            

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