孟云飞，副研究员，材料加工系副主任，四川省级青年人才。

华中科技大学武汉光电国家研究中心光学工程博士、华中科技大学电子科学与技术学科博士后，先后入选博士后创新研究岗位、西南交通大学“青苗学者”、四川省级青年人才、全国“焊才新星”—璀璨之星等，致力于高功率激光-电弧复合焊接与增材制造研究，主持国家重点研发计划子课题、国家自然科学基金、博士后科学基金等纵向项目以及企业横向课题10余项，累计在Int. J. Heat Mass Transf., Mater. Sci. Eng. A, Appl. Surf. Sci., J. Alloy. Compd., Thin-Walled Struct., J. Mater. Res. Technol., Trans. Nonferrous Met. Soc. China, J. Manuf. Process., Addit. Manuf., Adv. Powder Technol., Opt. Express, Opt. Lasers Eng., Opt. Laser Technol., Sci. Technol. Weld. Join., Metall. Mater. Trans. A, Int. J. Pr. Eng. Man.-GT, 以及焊接、应用激光等国内外学术期刊发表论文40余篇，包括第一作者SCI论文24篇、通讯作者SCI论文7篇、第一作者中文论文4篇等，申请/授权发明专利7件，受邀担任四川大学学报（自然科学版）青年编委,Thin-Walled Struct., Appl. Surf. Sci., J. Alloy. Compd., J. Mater. Process. Technol., J. Manuf. Process., J. Mater. Sci., Metall. Mater. Trans. A, Int. Commun. Heat Mass Transf., Virtual Phys. Prototyp., 以及焊接学报、精密成形工程、材料开发与应用等国内外学术期刊审稿人。

所属“西南交通大学高速交通轻量化材料与激光加工团队”，由材料科学与工程学院院长、教育部长江学者特聘教授、中国机械工程学会焊接分会副主任委员陈辉教授牵头，团队依托轨道交通运载系统全国重点实验室、材料先进技术教育部重点实验室、先进结构材料铁路行业重点实验室、高端装备先进材料与制造实验室，以及四川省先进焊接及表面工程技术研究中心，研究方向包括“高速交通装备先进焊接技术”、“激光先进加工技术”、“广域环境结构材料技术”、“结构材料及部件服役行为及安全评价技术”、“先进表面工程技术”等五个方向，开展材料工程技术研发、系统集成创新、科技成果与产品的孵化及产业化、工程技术的人才培养以及社会服务。

• 论文成果：

[1] Yunfei Meng, Qianxi Yu, Xu Wu, Xiaohan Guo, Ziheng Yang, Lidong Xu, Hui Chen. Oscillating laser-arc hybird additive manufacturing of aluminum alloy thin-wall based on synchronous wire-powder feeding. Thin-Walled Structures, 2025, 206, 112665.

[2] Yuhui Xie, Yunfei Meng*, Ailin Deng*, Chao Ge, Ziheng Yang, Qianxi Yu, Jiahui Zheng, Hui Chen. Interface characteristics and fracture mechanism of laser-arc hybrid welded Al-Ti dissimilar butt-joint through beam oscillation. Materials Science and Engineering A, 2024, 916, 147306.

[3] Chao Ge, Yunfei Meng*, Yuhui Xie, Jiahui Zheng, Ziheng Yang, Kang Guo, Qianxi Yu, Hui Chen. Microstructures and mechanical properties of laser-arc hybrid welded high-strength aluminum alloy through beam oscillation. Journal of Materials Research and Technology, 2024, 32: 3015-3024.

[4] Yunfei Meng*, Qianxi Yu, Xu Wu, Yupeng Ye, Jingtao Liao, Xiaohan Guo, Ailin Deng*, Hui Chen. Deposition stability and forming characteristics in laser-arc hybrid additive manufacturing of aluminum alloy through beam oscillation. International Journal of Precision Engineering and Manufacturing-Green Technology, 2024, https://doi.org/10.1007/s40684-024-00659-z.

[5] Lijun Wang*, Ying Wu, Hui Chen, Yan Liu, Yunfei Meng, Zhenlin Zhang. Modulation-ratio-dependent deformation mechanisms in Cr/CrN/Cr-DLC multilayer triggered by nanoindentation. Journal of Alloys and Compounds, 2024, 1004, 175922.

[6] Ailin Deng, Hui Chen, Yingbo Zhang*, Yunfei Meng*, Yan Liu, Ying Zeng, Hongmei Liu, Zhenlin Zhang, Mingyue Zhang. Enhanced strength and ductility of aluminum alloy laser welded joints through Ca micro-alloyed welding materials. Materials Science and Engineering A, 2024, 900, 146482.

[7] Yunfei Meng*, Qianxi Yu, Xu Wu, Ming Gao*, Hui Chen. Wire arc additive manufacturing of Al-Si-Mg aluminum alloy through wire-powder synchronous deposition. Transactions of Nonferrous Metals Society of China, 2024,  http://kns.cnki.net/kcms/detail/43.1239.TG.20240403.1814.036.html.

[8] Yishuai Jiang, Yunfei Meng*, Hui Chen, Xu Wu, Ailin Deng. Effects of oscillating frequency on keyhole stability and porosity inhibition in high-power laser-arc hybrid welding of 10-mm-thick 6082 aluminum alloy. Journal of Materials Research and Technology, 2024, 30: 385-396.

[9] Yunfei Meng*, Qianxi Yu, Ming Gao*, Hui Chen, Yishuai Jiang, Ziheng Yang. High-frequency oscillating laser-arc hybrid welding of 8-mm-thick high-strength aluminum alloy through synchronous wire-powder feeding. International Journal of Heat and Mass Transfer, 2024, 222, 125180.

[10] Yunfei Meng, Zeyu Li, Ming Gao*, Hui Chen, Xu Wu, Qianxi Yu. Laser cleaning assisted wire arc additive manufacturing of aluminum alloy thin-wall through synchronous wire-powder deposition. Thin-Walled Structures, 2024, 197, 111622.

[11] Xu Wu, Yunfei Meng*, Yupeng Ye, Yishuai Jiang, Bingxu Zhang, Hui Chen*. Improved formation accuracy and mechanical properties of laser-arc hybrid additive manufactured aluminum alloy through beam oscillation. Optics and Laser Technology, 2024, 170, 110325.

[12] Bingxu Zhang, Hui Chen*, Yan Liu, Yunfei Meng*, Ailin Deng, Xu Wu. Study on the influence of Al-Si welding wire on porosity sensitivity in laser welding and process optimization. Optics and Laser Technology, 2024, 170, 110261.

[13] Ailin Deng, Hui Chen*, Yingbo Zhang, Ying Wu, Yan Liu, Yunfei Meng, Hongmei Liu, Yahui Wu. Effect of rare Y-microalloyed Al-Mg filler materials on the microstructure and tensile properties of laser welded Al–Mg–Si alloys. Materials Science & Engineering A, 2024, 892, 146101.

[14] Rui Su, Jingtao Chen, Hui Chen, Zhiyi Zhang, Xu Zhao, Zheng Lei, Dirui Wang, Yunfei Meng, Zhenlin Zhang. Low-temperature impact toughness of laser-arc hybrid welded low-carbon bainitic steel. Journal of Materials Science, 2023, 58: 12775-12792.

[15] Yunfei Meng, Jian Li, Ming Gao*, Hui Chen*. Preparation of Ni-Al intermetallic compounds by plasma arc melting deposition through double-wire feeding. Journal of Materials Research and Technology, 2023, 24: 6174-6186.

[16] Yunfei Meng, Jian Li, Shuai Zhang, Ming Gao, Mengcheng Gong*, Hui Chen*. Wire arc additive manufacturing of Ni-Al intermetallic compounds through synchronous wire-powder feeding. Journal of Alloys and Compounds, 2023, 943, 169152.

[17] Yunfei Meng, Jiangwang Fu, Shuai Zhang, Mengcheng Gong, Ming Gao*, Hui Chen*. Laser-arc hybrid welding of AZ31B magnesium alloy by newly-designed beam oscillating pattern. Journal of Manufacturing Processes, 2023, 93: 208-218.

[18] Yunfei Meng, Jiangwang Fu, Mengcheng Gong, Shuai Zhang, Ming Gao*, Hui Chen*. Laser dissimilar welding of Al/Mg lap-joint with Ti interlayer through optimized 8-shaped beam oscillation. Optics and Laser Technology, 2023, 162, 109304.

[19] Yunfei Meng, Zeyu Li, Ming Gao, Hui Chen*, Chen Zhang*. Parameter Optimization and Mechanism of Synchronous Wire-Powder Arc Melting Deposition of Aluminum Alloy. Journal of Materials Engineering and Performance, 2023, https://doi.org/10.1007/s11665-023-08138-3.

[20] Yunfei Meng, Laihege Jiang, Ling Cen, Ming Gao*. Improved mechanical properties of laser-arc hybrid welded Al/steel dissimilar butt-joint through beam oscillation. Science and Technology of Welding and Joining, 2021, 26(6): 487-492.

[21] Yunfei Meng, Jian Li, Ming Gao*, Xiaoyan Zeng. Microstructure characteristics of wire arc additive manufactured Ni-Al intermetallic compounds. Journal of Manufacturing Processes, 2021, 68: 932-939.

[22] Ming Gao, Yazhou Zhang, Yunfei Meng*. Interface homogenization and its relationship with tensile properties of laser-arc hybrid welded Al/steel butt-joint via beam oscillation. Journal of Materials Science, 2021, 56: 14126-14138.

[23] Yunfei Meng, Yang Lu, Zeyu Li, Suning Zhao, Ming Gao*. Effects of beam oscillation on interface layer and mechanical properties of laser-arc hybrid lap welded Al/Mg dissimilar metals. Intermetallics, 2021, 133, 107175.

[24] Mengcheng Gong, Yunfei Meng, Shuai Zhang, Yazhou Zhang, Ming Gao*. Laser-arc hybrid additive manufacturing of stainless steel with beam oscillation. Additive Manufacturing, 2020, 33, 101180.

[25] Yunfei Meng, Mengcheng Gong, Shuai Zhang, Yazhou Zhang, Ming Gao*. Effects of oscillating laser offset on microstructure and properties of dissimilar Al/steel butt-joint. Optics and Lasers in Engineering, 2020, 128, 106037.

[26] Yunfei Meng, Xinwei Li, Ming Gao*, Xiaoyan Zeng. Microstructures and mechanical properties of laser-arc hybrid welded dissimilar pure copper to stainless steel. Optics and Laser Technology, 2019, 111: 140-145.

[27] Yunfei Meng, Geng Li, Ming Gao*, Xiaoyan Zeng. Formation and suppression mechanism of lack of fusion in narrow gap laser-arc hybrid welding. International Journal of Advanced Manufacturing Technology, 2019, 100(9-12): 2299-2309.

[28] Yunfei Meng, Kai Kang, Ming Gao*, Xiaoyan Zeng. Relationship between corrosion resistance and microstructure characteristic of single-pass laser-arc hybrid welded stainless clad steel plate. Metallurgical and Materials Transactions A, 2019, 50A: 2817-2825.

[29] Yunfei Meng, Ming Gao*, Xiaoyan Zeng. Effects of arc types on the laser-arc synergic effects of hybrid welding. Optics Express, 2018, 26(11): 14775-14785.

[30] Yunfei Meng, Ming Gao*, Xiaoyan Zeng. Quantitative analysis of synergic effects during laser-arc hybrid welding of AZ31 magnesium alloy. Optics and Lasers in Engineering, 2018, 111: 183-192.

[31] Yunfei Meng, Geng Li, Ming Gao*, Xiaoyan Zeng. Effects of groove parameters on space constraint of narrow gap laser-arc hybrid welding. Journal of Manufacturing Processes, 2018, 33: 144-149.

[32] Yunfei Meng, Kai Kang, Ming Gao*, Xiaoyan Zeng. Microstructures and properties of single-pass laser-arc hybrid welded stainless clad steel plate. Journal of Manufacturing Processes, 2018, 36: 293-300.

[33] Yunfei Meng, Jiaping Zhang, Cuiyuan Duan, Cheng Chen, Xiaomei Feng, Yifu Shen*. Microstructures and properties of W-Cu functionally graded composite coatings on copper substrate via high-energy mechanical alloying. Advanced Powder Technology, 2015, 26: 392-400.

[34] Yunfei Meng, Yifu Shen*, Cheng Chen, Yongcan Li, Xiaomei Feng. Effects of Cu content and mechanical alloying parameters on the preparation of W-Cu composite coatings on copper substrate. Journal of Alloys and Compounds, 2014, 585: 368-375.

[35] Yunfei Meng, Yifu Shen*, Cheng Chen, Yongcan Li, Xiaomei Feng. Microstructures and formation mechanism of W-Cu composite coatings on copper substrate prepared by mechanical alloying method. Applied Surface Science, 2013, 282: 757-764. 

• 专利成果：

[1] 孟云飞，郭糠，陈辉，谢宇辉，余千禧. 集激光清洗与激光电弧复合焊于一体的焊接装置及方法. 中国，发明专利，申请号：CN202411621035.7.

[2] 孟云飞，谢宇辉，余千禧，郭晓晗，唐志，侯忠平，葛超，邓爱林，陈辉. 一种基于光束扫描图形优化设计的激光电弧复合焊接方法. 中国，发明专利，申请号：CN202411631121.6.

[3] 孟云飞，余千禧，邓爱林，陈辉，高明，李泽宇. 一种丝粉同步电弧熔化沉积方法. 中国，发明专利，申请号：CN202410405295.4.

[4] 郭糠，张英波，陈辉，孟云飞，伍亚辉，邓爱林，胡云峰. 一种Ti65钛合金焊接材料及其设计方法与应用. 中国，发明专利，申请号：CN202411272068.5.

[5] 李海舟，鲁睿，陈辉，孟云飞. 一种基于等效应力的焊接接头高周疲劳寿命预测方法. 中国，发明专利，申请号：CN202411286100.5.

[6] 陈辉，邓爱林，张英波，刘艳，孟云飞. 一种稀土元素改性的激光焊接用铝合金焊丝及其制备方法. 中国，发明专利，申请号：CN202311710407.9.

[7] 高明，孟云飞，李耿，曾晓雁. 一种窄间隙激光-电弧复合焊接气体保护装置及调节方法. 中国，发明专利，专利号：CN201711164562.X.

团队名称：高速交通轻量化材料与激光加工团队

团队介绍：陈辉教授作为团队带头人，现有全职科研人员100余名，主要研究方向包括：高速交通装备先进焊接技术、激光先进加工技术、广域环境结构材料技术、轻量化结构材料及部件服役行为安全评价技术、先进表面工程技术等。
       团队致力于开展高速载运装备等关键材料技术研发、系统集成创新、科技成果与产品的孵化及产业化、工程技术的人才培养以及社会服务。研究类型包括基础研究、先进前沿技术攻关、应用示范，以培养高端多元化复合型研究人才。面向未来交通：高速磁悬浮列车、更高速度高速列车、川藏铁路、大飞机等国家重大需求、重大工程，突破其中高性能金属材料与先进焊接科技，致力推进更高可靠更长寿命更环保节能的国家轨道交通事业发展。
       团队近年来主持国家科技支撑计划课题、973课题、国家重点研发计划课题、国家自然基金项目等国家级项目/课题10余项，省部级、企业委托项目100余项，累计科研经费超过1亿余元。