主持中国国家自然科学基金面上、青年项目各1项，中国博士后基金面上项目1项，哈尔滨工业大学先进焊接与连接国家重点实验开放课题面上项目1项，南京留学人员科技创新择优资助重点项目1项。在材料加工、焊接冶金和金属材料表征等相关领域的国际学术期刊发表SCI论文20余篇，其中第一及通讯作者SCI检索论文19篇。担任中国机械工程学会焊接分会计算机辅助焊接工程分委会委员、有色金属学会先进焊接与连接分会委员、《有色金属学报》中英文版首届青年编委、多本国际知名SCI期刊的审稿专家，拥有授权的国家发明专利3项，首届“Young Researcher Award in Joining and Welding”得主，获山东省高等学校科学技术一等奖1项（排名第3），曾获“ACTA员工奖”（Acta Student Award）和“STWJ最佳论文奖”（STWJ Best Paper Prize）等国际学术荣誉奖励。2021年入选江苏省“双创博士”人才计划。目前主要从事固相增材制造与先进焊接技术方面的研究。每年计划招收博士生1名，硕士生2-3名，欢迎具有机械、材料、力学、控制等相关背景的员工报考，也欢迎有志从事科研的本科生加入本课题组。

专业文献阅读与写作(研讨)专
业文献阅读与写作(研讨)

《Materials & Design》

《Journalof Materials Processing Technology》

《Journalof Manufacturing Processes》

《Materials Characterization》

《Materials Chemistry and Physics》

《Weldingin the World》

《Acta Metallurgica Sinica (English Letters)》

《Vacuum》

《Chinese Journal of Mechanical Engineering》

《Transactions of Nonferrous Metals Society of China》

《机械工程学报》

《金属学报》

《焊接学报》

《Welding International》

《有色金属学报》中、英文版首届青年编委

美国矿物、金属和材料学会会员

英国材料、矿物和矿业学会会员

美国金属学会会员

日本溶接学会会员

中国焊接学会计算机辅助焊接工程分委会委员

中国有色金属学会先进连接与加工分会委员

中国机械工程学会高级会员

山东省高等学校科学技术一等奖1项

Acta Student Award

STWJ Best Paper Prize

山东省优秀硕士学位论文

Young Researcher Award in Joining and Welding

代表性论著：

[1]  Liu, X., Wu, C., Padhy, G.K. Characterization ofplastic deformation and material flow in ultrasonic vibration enhanced frictionstir welding. (2015) Scripta Materialia, 102, pp. 95-98.

[2]  Liu, X., Sun, Z. Numerical simulation of vortex- friction stir welding based on internal friction between identical materials. International Journal of Heat and Mass Transfer, 2022,185, 122418.

[3]  Liu, X.C., Sun, Y.F., Nagira, T., Ushioda, K., Fujii,H. Evaluation of dynamicdevelopment of grain structure during friction stir welding of pure copperusing a quasi in situ method. (2019) Journal of Materials Science andTechnology, 35 (7), pp. 1412-1421.

[4]  Liu, X.C., Sun, Y.F., Morisada, Y., Fujii, H. Dynamics of rotationalflow in friction stir welding of aluminium alloys. (2018) Journal ofMaterials Processing Technology, 252, pp. 643-651.

[5]  Liu, X., Zhen, Y., Shen,Z., Chen, H., Li, W., Guo, W., Yue, Z. A Modified Friction Stir Welding Process Based on Vortex Material Flow.(2020) Chinese Journal of Mechanical Engineering (English Edition), 33(1), 论文编号 90.

论文列表：

[1]   Liu, X., Zhen,Y., Chen,H., Shen,Z. Study on process characteristics of friction stir welding based on vortexmaterial flow using 6061-T6 aluminum alloy.International Journal of Advanced ManufacturingTechnology, 2022, 119(7-8), pp. 5025–5034.

[2]   Liu, X., Sun, Z. Numerical simulation of vortex- friction stir welding based on internal friction between identical materials. International Journal of Heat and Mass Transfer, 2022,185, 122418.

[3]   Liu, X., Zhen, Y., He,X., Chen, H., Shen, Z. Vortex- friction stir welding process based on internalfriction between identical materials |基于同质摩擦的涡流搅拌摩擦焊工艺. Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica, 2022, 43(2), 625012.

[4]   Chen, H., Zhao, S., Nai, X., Miao, L., Shen, Z., Liu, X., Cao, J. Controlledspreading of melted fillers and precision micro-brazing based on a micro-scalebinary cooperative complementary interface design strategy.(2020) Ceramics International, 47 (15), pp. 21433-21442.

[5]   Shen, Z., Ding, Y., Guo, W., Liu, X. Li, W., Gerlich, A. Refill Friction Stir Spot Welding AlAlloy to Copper via Pure Metallurgical Joining Mechanism. Chinese Journal of Mechanical Engineering (English Edition), 2021, 34(1), 75.

[6]   Shen, Z., Li, W., Cai, Z., Wu, L., Liu, X. Role of Sleeve Design on Weld Formation of Refill Friction Stir Spot Welded Dissimilar Al Alloys|套筒设计对异种铝合金回填式搅拌摩擦点焊接头成形的影响.Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 2021, 57(18).

[7]  Liu, X., Zhen, Y., Shen,Z., Chen, H., Li, W., Guo, W., Yue, Z. A Modified Friction Stir Welding Process Based on Vortex Material Flow. (2020) Chinese Journal of Mechanical Engineering(English Edition), 33 (1), 论文编号 90.

[8]  Nagira, T., Liu, X.C., Ushioda, K., Fujii, H.Mechanism of grain structure development for pure Cu and Cu-30Zn with lowstacking fault energy during FSW. (2020) Science and Technology of Welding andJoining, 25 (8), pp. 669-678.

[9]  LIU, X.-C., ZHEN, Y.-Q., SUN, Y.-F., SHEN, Z.-K., CHEN,H.-Y., GUO, W., LI, W.-Y. Local inhomogeneity of mechanical properties in stirzone of friction stir welded AA1050 aluminum alloy. (2020) Transactions of Nonferrous Metals Society of China (English Edition), 30 (9), pp. 2369-2380.

[10]Chen, H., Ren, X.,Guo, W., Shen, Z., Liu, X., Cao, J. Effects of glass compositionand joining parameters on microstructural evolution and mechanical propertiesof Al2O3/Cu joints brazed with Bi2O3-B2O3-ZnO glass. (2020) Journal ofManufacturing Processes, 56, pp. 735-745.

[11]Liu, X., Sun, Y., Nagira,T., Ushioda, K., Fujii, H. Effect of Stacking Fault Energy on the Grain Structure Evolution of FCC Metals During Friction Stir Welding. (2020) Acta Metallurgica Sinica (English Letters), 33 (7), pp. 1001-1012. 

[12]Nagira, T., Liu,X.C., Ushioda, K., Fujii, H. Influences of temperature and Sn-addition onmicrostructural evolution of Ag during FSW. (2020) Science and Technology of Welding and Joining, 25 (3), pp. 198-207.

[13]Zhen, Y., Liu,X., Shen, Z., Chen, H. State-of-art of Experimental Characterization of Material Flow in Friction Stir Welding [搅拌摩擦焊材料流动的试验表征研究现状]. (2020) Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 56 (6), pp. 184-192.

[14]Shen, Z., Li,W.Y., Ding, Y., Hou, W., Liu, X.C., Guo, W., Chen, H.Y., Liu, X.,Yang, J., Gerlich, A.P. Material flow during refill friction stir spot weldeddissimilar Al alloys using a grooved tool. (2020) Journal of ManufacturingProcesses, 49, pp. 260-270.

[15]Ni, Y., Fu, L.,Shen, Z., Liu, X.C. Role of tool design on thermal cycling and mechanical properties of a high-speed micro friction stir welded 7075-T6aluminum alloy. (2019) Journal of Manufacturing Processes, 48, pp. 145-153.

[16]Nagira, T., Liu,X.C., Ushioda, K., Iwamoto, Y., Ano, G., Fujii, H. Role of annealingtwinning in microstructural evolution of high purity silver during frictionstir welding. (2019) Science and Technology of Welding and Joining, 24 (7), pp.644-651.

[17]Shen, Z., Ding,Y., Chen, J., Fu, L., Liu, X.C., Chen, H., Guo, W., Gerlich, A.P.Microstructure, static and fatigue properties of refill friction stir spotwelded 7075-T6 aluminium alloy using a modified tool. (2019) Science andTechnology of Welding and Joining, 24 (7), pp. 587-600.

[18]Chen, H., Ren, X.,Guo, W., Wan, M., Shen, Z., Liu, X., Feng, M. Microstructures andmechanical properties of brazed Al2O3/Cu joints with bismuth glass. (2019)Ceramics International, 45 (13), pp. 16070-16077.

[19]Guo, W., Fu, L.,He, P., Lin, T., Wan, M., Hou, J., Wu, Y., Liu, X., Shen, Z. Air-brazedAl2O3 joint with a novel bismuth glass. (2019) Ceramics International, 45 (12),pp. 15213-15222.

[20]Liu, X.C., Sun, Y.F.,Nagira, T., Ushioda, K., Fujii, H. Evaluation of dynamic development of grainstructure during friction stir welding of pure copper using a quasi in situmethod. (2019) Journal of Materials Science and Technology, 35 (7), pp.1412-1421.

[21]Liu, X.C., Sun, Y.F.,Nagira, T., Ushioda, K., Fujii, H. Strain rate dependent micro-textureevolution in friction stir welding of copper. (2019) Materialia, 6, 论文编号 100302.

[22]Liu, X.C., Sun, Y.F.,Nagira, T., Ushioda, K., Fujii, H. Experimental evaluation of strain and strainrate during rapid cooling friction stir welding of pure copper. (2019) Scienceand Technology of Welding and Joining, 24 (4), pp. 352-359.

[23]Guo, W., Fu, L.,He, P., Lin, T., Shen, Z., Liu, X.C., Wang, T., Wang, C.Low-temperature brazing of alumina ceramics with bismuth-borate glass in air.(2019) Materials Characterization, 149, pp. 158-164.

[24]Liu, X.C., Sun, Y.F.,Nagira, T., Ushioda, K., Fujii, H. Correction to: Microstructure evolution ofCu–30Zn during friction stir welding (Journal of Materials Science, (2018), 53,14, (10423-10441), 10.1007/s10853-018-2313-5). (2018) Journal of MaterialsScience, 53 (15), p. 11130.

[25]Liu, X.C., Sun, Y.F.,Nagira, T., Ushioda, K., Fujii, H. Microstructure evolution of Cu–30Zn duringfriction stir welding. (2018) Journal of Materials Science, 53 (14), pp.10423-10441.

[26]Liu, X.C., Sun, Y.F.,Nagira, T., Fujii, H. Investigation of temperature dependent microstructureevolution of pure iron during friction stir welding using liquid CO2 rapidcooling. (2018) Materials Characterization, 137, pp. 24-38.

[27]Liu, X.C., Sun, Y.F.,Morisada, Y., Fujii, H. Dynamics of rotational flow in friction stir welding ofaluminium alloys. (2018) Journal of Materials Processing Technology, 252, pp.643-651.

[28]Liu, X.C., Sun, Y.F.,Fujii, H. Clarification of microstructure evolution of aluminum during frictionstir welding using liquid CO2 rapid cooling. (2017) Materials and Design, 129,pp. 151-163.

[29]Liu, X.C., Wu, C.S.Elimination of tunnel defect in ultrasonic vibration enhanced friction stirwelding. (2016) Materials and Design, 90, pp. 350-358.

[30]Liu, X., Wu, C., Zhong,Y., Gao, S. Thermo-mechanical behaviors and microstructure characteristics ofultrasonic vibration enhanced friction stir welding. (2015) Jixie GongchengXuebao/Journal of Mechanical Engineering, 51 (22), pp. 22-28.

[31]Liu, X.C., Wu, C.S.Material flow in ultrasonic vibration enhanced friction stir welding. (2015)Journal of Materials Processing Technology, 225, pp. 32-44.

[32]Liu, X.C., Wu, C.S., Padhy,G.K. Improved weld macrosection, microstructure and mechanical properties of2024Al-T4 butt joints in ultrasonic vibration enhanced friction stir welding.(2015) Science and Technology of Welding and Joining, 20 (4), pp. 345-352.

[33]Liu, X., Wu, C., Padhy,G.K. Characterization of plastic deformation and material flow in ultrasonicvibration enhanced friction stir welding. (2015) Scripta Materialia, 102, pp.95-98.

[34]Shi, L., Wu,C.S., Liu, X.C. Modeling the effects of ultrasonic vibrationon friction stir welding. (2015) Journal of Materials Processing Technology,222, pp. 91-102.

[35]Liu, X., Wu, C. Effect ofultrasonic vibration on microstructure and mechanical properties of frictionstir welded joint of 6061-T4 aluminum alloy. (2014) Hanjie Xuebao/Transactionsof the China Welding Institution, 35 (1), pp. 49-53.

[36]Liu, X., Wu, C., Rethmeier,M., Pittner, A. Mechanical properties of 2024-T4 aluminium alloy joints inultrasonic vibration enhanced friction stir welding. (2013) China Welding(English Edition), 22 (4), pp. 8-13.

[37]Liu, X., Wu, C., Zhang,H., Chen, M. Effect of ultrasonic vibration on the friction stir weld qualityof aluminium alloy. (2013) China Welding (English Edition), 22 (3), pp.12-17.