1.特种焊接与加工技术；

2.金属材料增材制造；

3.轻质高强材料设计与制备

在本领域重要学术期刊发表SCI论文 130余篇，引用 3900余次（Web of Science），H因子34，第一/通讯作者论文 62篇，获国家授权发明专利20余项。近年来主要代表性论文如下：

1. S. Hao, X.P. Guo*, J.Y. Cui, P. Xue*, R.Z. Xu, X.M. Guo*. Enhancing the mechanical properties of wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy through cyclic deep cryogenic treatment. Mater. Sci. Eng. A. 909 (2024) 146838.

2. M. Zhang, J.M. Liu, P. Xue*, F.C. Liu, L.H. Wu, D.R. Ni*, B.L. Xiao, K.S. Wang, Z.Y. Ma. Eliminating Cu-rich intermetallic compound layer in dissimilar friction stir welding of 304 stainless steel and 2219 Al alloy via ultralow rotation speed. J. Mater. Process. Technol. 329 (2024) 118444.

3. M. Liu, X.H. An, B.B. Wang, L.H. Wu, P. Xue*, F.C. Liu, D.R. Ni*, B.L. Xiao, and Z.Y. Ma. Enhanced fatigue properties of large-scale ultrafine-grained copper fabricated by friction stir additive manufacturing and subsequent cold rolling. Int. J. Fatigue 183 (2024) 108253.

4. X.P. Guo, D.R. Ni, H.J. Li*, P. Xue*, R.Z. Xu, Z.X. Pan, S.Y. Zhou, Z.Y. Ma. Enhancing strength, ductility, and fatigue performance of Al-Zn-Mg-Cu-Sc-Zr alloy using a hybrid approach: wire-arc directed energy deposition and interlayer friction stir processing. J. Mater. Process. Technol. 322 (2023) 118173.

5. B.B. Wang, X.H. An, P. Xue*, F.C. Liu, D.R. Ni*, B.L. Xiao, Y.D. Liu and Z.Y. Ma. Grain size effects on high cycle fatigue behaviors of pure aluminum. Int. J. Fatigue 170 (2023) 107556.

6. M. Zhang, F.C. Liu*, Z.Y. Liu, P. Xue*, P. Dong, H. Zhang, L.H. Wu, D.R. Ni, Z.Y. Ma. Highly stable nanoscale amorphous microstructure at steel-aluminum interface enabled by a new solid-state additive manufacturing method. Scripta Mater. 227 (2023) 115300.

7. M. Liu, B.B. Wang, X.H. An, P. Xue*, F.C. Liu, L.H. Wu, D.R. Ni*, B.L. Xiao, Z.Y. Ma. Friction stir additive manufacturing enabling scale-up of ultrafine-grained pure copper with superior mechanical properties. Mater. Sci. Eng. A. 857 (2022) 144088.

8. S.B. Zhao, Y. Yan, X.W. Li, P. Xue*, D.R. Ni, Z.Y. Ma, Y.Z. Tian*. Achieving high tensile ductility in a full nanostructured Al-Mg alloy by low-temperature annealing. Mater. Sci. Eng. A. 853 (2022) 143778.

9. C. Wang, B.B. Wang, P. Xue*, D.R. Ni, B.L. Xiao, X.D. Hou*, J.B. Gao, L.Q. Chen, Z.Y. Ma. Effect of tool offsetting on friction stir welding of dissimilar aluminium matrix composite and aluminium alloy. Sci. Technol. Weld. Join. 27 (2022) 586-593.

10. Z.W. Wang, J.F. Zhang, G.M. Xie, L.H. Wu, H. Zhang, P. Xue*, D.R. Ni, B.L. Xiao, Z.Y. Ma. Evolution mechanisms of microstructure and mechanical properties in a friction stir welded ultrahigh-strength quenching and partitioning steel. J. Mater. Sci. Technol. 102 (2022) 213-223.