致力于激光再制造领域的研究，重点突破了失效构件激光表面再制造（激光表面合金化、激光熔覆、激光冲击强化）强化提升机理、水下激光增材再制造技术及极端环境冶金理论、应力/缺陷在线监测方法及调控机制，形成了一套失效构件现场原位高质高效修复的理论及技术体系。

以第一及通讯作者发表SCI检索论文60余篇，SCI他引472余次，EI检索论文11篇。以第一发明人授权发明专利13项，实审发明专利11项。担任美国激光学会成员、全国材料新技术发展研究会理事、Laser Eng.编委。部分研究成果在海洋用钢、混料机桨叶、生物制粒机辊等领域获得示范化工程应用。

在读员工及毕业生去向

2000年9月-2004年7月，东北大学尖子班，材料科学与工程，本科/学士；  

2004年9月-2009年7月，东北大学，材料学，硕博连读研究生/博士；  

2007年10月-2008年10月，美国密歇根大学，工学院机械系，激光辅助智能制造中心(CLAIM)，联合培养博士，师承于美国工程院院士Jyoti Mazumder教授。

2009年7月-2014年3月：江苏大学，云顶集团，讲师、副教授、硕士生导师；  

2010年4月-2010年10月：美国密歇根大学，工学院机械系，激光辅助智能制造中心(CLAIM)，研究学者(Research scholar)  

2014年3月-2017年4月：云顶集团，云顶集团机制系，副教授/硕导； 

2017年4月-至今：云顶集团，云顶集团机制系，教授/硕导/博导

工程材料及制造技术基础  

先进制造技术(全英文)  

先进激光制造技术

美国激光学会成员、中国光学学会激光加工专业委员会会员，中国机械工程学会高级会员，全国材料新技术发展研究会理事。

江苏省“”六大人才高峰“高层次人才”  

中国机械工业联合会一等奖

书籍章节

[1] GF Sun, R Zhou.   Chapter 3: Mechanical properties improvement of metallic rolls by laser  surface alloying. In the Book Laser surface   engineering: Processes and applications. Edited by Jonathan Lawrence and David Waugh. Published by Woodhead Publishing Limited. 2015, 59-96.

期刊论文 

[52] K Yang, MZ Chen, ZD Wang, SB Wang, Y Lu, ZH Ni, GF Sun*. Evolutions of microstructure and mechanical property of high nitrogen steel repaired by underwater directed energy deposition technique. Materials Science & Engineering A, 2022, 857: 144077. 

[51] SB Wang, ZD Wang, K Yang, MZ Chen, EK Wu, ZH Ni, GF Sun*. Investigation of on-site repair of 18Ni300 by underwater laser direct metal deposition technique. Journal of Manufacturing Processes, 2022, 80: 909-919. 

[50] EK Wu, ZD Wang, K Yang, MZ Chen, SB Wang, Y Lu, ZH Ni, GF Sun*. Microstructure and mechanical properties of underwater laser deposition remanufactured 316LN stainless steel at a pressure of 0.3 MPa. Optics and Laser Technology, 2022, 155: 108394. 

[49] ZD Wang, K Yang, MZ Chen, Y Lu, SB Wang, EK Wu, KD Bi, ZH Ni, GF Sun*. High-quality remanufacturing of HSLA-100 steel through the underwater directed energy deposition in an underwater hyperbaric environment. Surface & Coatings Technology, 2022, 437, 128370.

[48]  MZ Chen, K Yang, ZD Wang, SB Wang, Y Lu, ZH Ni, GF Sun*. Quasi-continuous-wave laser directed energy deposition on inclined NV E690 steel plates: melt pool and temperature evolution. Surface & Coatings Technology, 2022, 437, 128344. 

[47] ZD Wang, SB Wang, K Yang, MZ Chen, KD Bi, ZH Ni, GF Sun*. In-situ SEM investigation on the fatigue behavior of Ti-6Al-4V ELI fabricated by the powder-blown underwater directed energy deposition technique. Materials Science & Engineering A, 2022, 838: 142783. (SCI)

[46] GF Sun, ZD Wang, Y Lu, MZ Chen, K Yang, ZH Ni. Underwater laser welding/cladding for high-performance repair of marine metal materials: a review. Chinese Journal of Mechanical Engineering, 2022, 35:5.

[45] ZD Wang, K Yang, MZ Chen, Y Lu, KD Bi, GF Sun*, ZH Ni. Investigation of the microstructure and mechanical properties of Ti-6al-4V repaired by the powder-blown underwater directed energy deposition technique. Materials Science & Engineering A, 2022, 831: 142186. 

 [44] Q Yan, K Yang, ZD Wang, MZ Chen, GF Sun*, ZH Ni. Surface roughness optimization and high-temperature wear performance of H13 coating fabricated by extreme high-speed laser cladding. Optics and Laser Technology, 2022, 149: 107823.

[43] CH Gu, Y Lu, MZ Chen, GF Sun*, ZH Ni*. A reweighting offset bin classification network for surface defect detection and location of metal components. Measurement, 2022, 187: 110166.

[42] K Yang, ZD Wang, MZ Chen, HF Lan, GF Sun*, ZH Ni. Effect of pulse frequency on the morphology, microstructure, and corrosion resistance of high-nitrogen steel prepared by laser directed energy deposition. Surface & Coatings Technology, 2021, 421: 127450. 

[41] ZD Wang, GF Sun*, MZ Chen, Y Lu, SB Zhang, HF Lan, KD Bi, ZH Ni*. Investigation of the underwater laser directed energy deposition technique for the on-site repair of HSLA-100 steel with excellent performance. Additive Manufacturing, 2021,39:101884.

[40] ZD Wang, GF Sun*, Y Lu, MZ Chen, HF Lan, KD Bi, ZH Ni*. High-performance Ti-6Al-4V with graded microstructure and superior properties fabricated by powder feeding underwater laser metal deposition. Surface & Coatings Technology, 2021, 408: 126778.

[39] MZ Chen, Y Lu, ZD Wang, HF Lan, GF Sun*, ZH Ni*. Melt pool evolution on inclined NV E690 steel plates during laser direct metal deposition. Optics & Laser Technology, 2021, 136: 106745.

[38] 王鹏飞, 杨坤, 陈明智, 王占栋, 卢轶, 孙桂芳*, 倪中华*. 倾斜基板激光熔覆GH3536熔池形貌的仿真与实验研究. 中国激光, 2021, 1002121

[37] ZD Wang, GF Sun*, Y Lu, MZ Chen, KD Bi, ZH Ni*. Microstructural characterization and mechanical behavior of ultrasonic impact peened and laser shock peened AISI 316L stainless steel. Surface & Coatings Technology, 2020, 385: 125403.

[36] P Yang, GF Sun*, Y Lu, ZH Ni. Monitoring of optical emissions in laser cladding of 316L stainless steel. Applied Optics, 2019, 58: 8733-8742. 

[35] GF Sun*, XT Shen, ZD Wang, MJ Zhan, S Yao, R Zhou ZH Ni. Laser metal deposition as repair technology for 316L stainless steel: Influence of feeding powder compositions on microstructure and mechanical properties. Optics and Laser Technology, 2019, 109: 71-83.

[34] Y Lu, GF Sun, XF Xiao, J Mazumder*. Online stress measurement during laser aided metallic additive manufacturing, Scientific Reports,2019,9: 7630.

[33] Y Lu, GF Sun*, ZD Wang, YK Zhang, BY Su, AX Feng, ZH Ni*. Effects of electromagnetic field on the laser direct metal deposition of austenitic stainless steel. Optics and Laser Technology, 2019,119: 105586.

[32] MJ Zhan, GF Sun*, ZD Wang, XT Shen, Y Yan,  ZH Ni*. Numerical and experimental investigation on laser metal deposition as repair technology for 316L stainless steel. Optics and Laser Technology, 2019,118: 84-92.

[31] GF Sun*, S Yao, ZD Wang, XT Shen, Y Yan, R Zhou ZH Ni. Microstructure and mechanical properties of HSLA-100 steel repaired by laser metal deposition. Surface & Coatings Technology, 2018, 351: 198-211.

[30] ZD Wang, Y Lu, GF Sun*, ZH Ni. Effect of Ultra-sonic Peening on Laser-Arc Hybrid Welded NV E690 Steel. Journal of Laser Applications,2018, 30: 032403. 

[29] GF Sun*, ZD Wang, Y Lu, R Zhou, ZH Ni, X Gu, ZG Wang. Numerical and experimental investigation of thermal field and residual stress in laser-MIG hybrid welded NV E690 steel plates. Journal of Manufacturing Processes, 2018, 34: 106-120.

[28] R Zhou, ZP Tong, GF Sun*, ZH Ni, W Zhang. Microstructure and wear behaviour of 38CrMoAl steel laser-processed with addition of MoS2 or WS2. Lasers in Engineering, 2018, 41: 1-25. 

[27] R Zhu, YK Zhang, GF Sun*, XT Shen, P Li. Finite element analysis of surface roughness generated by multiple laser shock peening. Rare Metal Materials and Engineering, 2018, 47: 33-38. 

[26] AM Xiao, GF Sun*,ZP Tong, SY Dong, SX Yan, JZ Lu, YK Zhang. Effect of laser shock processing on microstructure, residual stress and wear-fracture behavior of laser deposited Fe-based alloy coating. Lasers in Engineering, 2018, 39: 175-194. 

[25] 孙桂芳*, 陶丰, 姜波, 姬文宣, 牛牧遥, 沈旭婷. 医用不锈钢激光合金化铜钴合金的组织及其生物医学性能. 中国激光, 2018, 45: 1202008. 

[24] JF Wu, SK Zou, YK Zhang, SL Gong, GF Sun*, ZH Ni, ZW Cao, ZG Che, AX Feng. Microstructures and mechanical properties of β forging Ti17 alloy under combined laser shock processing and shot peening. Surface   & Coatings Technology, 2017, 328: 283-291.

[23] GF Sun*, ZD Wang, Y Lu, R Zhou, ZH Ni. Investigation on microstructure and mechanical properties of NV E690steel joint by laser-MIG hybrid welding. Materials and Design, 2017, 127: 297-310. 

[22] 朱然, 张永康, 孙桂芳*, 李普, 张胜标, 倪中华. 三维平顶光束激光冲击2024铝合金的残余应力场数值模拟. 中国激光, 2017, 44(8): 0802007.

[21] GF Sun*, XY Fang, ZP Tong, ZH Ni, Y Lu. Effect of laser shock peening on  aluminum alloy laser-welds. Surface Engineering, 2016, 32: 943-948. 

[20] 李倩, 孙桂芳*, 卢轶, 张永康. 光纤激光水下切割1 mm厚304不锈钢的实验研究. 中国激光, 2016, 43:0602001-10.

[19] GF Sun*, ZP Tong, XY Fang, XJ Liu, ZH Ni, W Zhang.Effect of scanning speeds on microstructure and wear behavior of laser processed NiCr-Cr3C2-MoS2-CeO2 on 38CrMoAl steel. Optics & Laser Technology, 2016, 77: 80-90.

[18] Y Lu, GF Sun, DP Wen, YK Zhang, AX Feng. Effects of applying electric and magnetic fields on laser drilling. The International Journal of Advanced Manufacturing Technology,  2016, 84: 2293-2300.

[17] GF Sun*, R Zhou, JZ Lu, J Mazumder*.  Evaluation of defect density, microstructure, residual stress, elastic modulus, hardness  and strength of laser deposited AISI 4340 steel. Acta Materialia, 2015, 84: 172-189. 

[16] GF Sun*, K Wang, R Zhou, AX Feng, W Zhang. Effect of different heat-treatment temperatures on the laser cladded M3:2 high-speed steel. Materials and Design, 2015, 65: 606-616.   

[15] GF Sun*, K Wang, R Zhou, ZP Tong, XY Fang. Effect  of annealing on microstructure and mechanical properties of laser deposited   Co-285 + WC coatings.  Optics & Laser Technology, 2015, 66: 98-105.

[14] GF Sun*, YK Zhang, MK Zhang, R Zhou, K Wang,   CS Liu, KY Luo. Microstructure and corrosion characteristics of 304 stainless   steel laser-alloyed with Cr-CrB2. Applied Surface Science,   2014,   295: 94-107. 

[13] GF Sun*, R Zhou, YK Zhang, GD Yuan, K Wang,   XD Ren, DP Wen. Microstructure evolution and lubricant wear performance of   laser alloyed layers on automobile engine chains. Optics & Laser Technology, 2014, 62: 20-31. 

[12] R Zhou,   GF Sun*, CS Liu,   XD Ren, K Wang, AX Feng, XP Bu. Effects  of yttrium on microstructure and wear properties of laser DMD Co-285+WC coatings. Lasers in Engineering, 2015, 31(3-4): 161-178. 

[11] MK Zhang, GF  Sun*,YK Zhang, CS Liu, XD Ren, AX Feng, W Zhang. Laser   surface alloying of Cr-CrB2 on SUS 304 stainless steel. Lasers   in Engineering, 2014, 27(3-4): 231-245. 

[10] 李鹏, 孙桂芳*, 张尉, 刘卫祥, 张永康, 张满奎. 不锈钢表面激光合金化Mn-Al2O3强化层的组织及性能. 中国有色金属学报, 2012, 22: 2253-2259.

[9] GF Sun*, S Bhattacharya, GP Dinda, A Dasgupta, J Mazumder*. Microstructure   evolution during laser aided direct metal deposition of alloy tool steel, Scripta  Materialia, 2011, 64: 454-457. 

[8] GF Sun*,S Bhattacharya, GP Dinda, A Dasgupta, J Mazumder.  Influence of processing parameters on lattice parameters in laser deposited   tool alloy steel. Materials Science and Engineering: A, 2011, 528: 5141-5145. 

[7] GF Sun*, R Zhou, P Li, AX Feng, YK Zhang. Laser   surface alloying of C-B-W-Cr powders on nodular cast iron rolls. Surface   & Coatings Technology, 2011, 205:  2747-2754.  

[6] GF Sun, CS Liu, LJ Song, J Mazumder*.   Microstructure and wear behavior of laser-aided direct metal deposited Co-285   and Co-285 +WC coatings. Metallurgy and Materials Transactions: A,2010, 41:  1592-1603. 

[5] GF Sun*, YK Zhang, CS Liu, KY Luo, XQ Tao, P Li.   Microstructure and wear resistance enhancement of cast steel rolls by laser   surface alloying NiCr-Cr3C2. Materials and Design, 2010,31(6): 2737-2744. 

[4] GF Sun*, YK Zhang, CS Liu, P Li, XQ Tao.   Microstructure and wear resistance enhancement of semi-steel rolls by laser   surface alloying of NiCr-Cr3C2. Lasers in Engineering, 2010, 19: 347-361. 

[3] GF Sun*, YK Zhang, CS Liu. Effects of laser surface  re-melting on the microstructure and hardness of laser deposited Co-285+WC   coatings. Lasers in Engineering, 2010, 20: 9-20.  

[2] 孙桂芳, 梁京, 陈岁元, 刘常升*. 碳钢上激光辅助沉积Co-285合金的组织及性能. 中国有色金属学报, 2010，20：274-281.

[1] 孙桂芳, 刘常升, 陶兴启, 陈岁元. 高镍铬无线冷硬铸铁轧辊表面激光合金化的研究. 东北大学学报(自然科学版), 2008, 29(6): 845-848 (EI).

会议论文 

[4] R Zhou, GF Sun*,   KK Chen, YQ Tong. Effect of tempering on microstructure and mechanical   properties of cast iron rolls laser alloyed with C-B-W-Cr. 2014   Global Conference on Polymer and Composite Materials (PCM 2014),IOP Conf.   Series: Materials Science and Engineering,2014, 62: 012015-6. 

[3] GF Sun*, Zhou Rui, Li Peng, Zhang Yongkang. Effects of   processing parameters on the laser deposited Co-285 + WC coatings. Key Engineering Materials,2011, 464: 568-571.   

[2] GF Sun, Liu Changsheng, Liang Jing, Zhou Junhua,   Tao Xingqi. Laser surface alloying of NiCr-Cr3C2 and   C-B-W-Cr powders on nodular cast iron rolls. Advanced Materials Research,   2009, 79-82: 1459-1462. 

[1] GF Sun,CS Liu, GP Dinda, J Mazumder. Laser-Aided Direct Metal  Deposition of Co-285. ICALEO, 27th International Congress on   Application of Lasers & Electro-Optics, October 20-23, 2008. Pechanga Resort & Casino, Temecula, CA, USA.