Biography

Jijin Xu is an Associate Professor and doctoral supervisor at Shanghai Jiao Tong University. His research combines experimental characterization and computational modelling to study welding mechanics, superalloy additive manufacturing, joint strengthening and toughening, and residual-stress measurement and control.

Research & achievements

  • Welding mechanics and numerical modelling: Welding thermal processes, mechanical response and residual stresses, with numerical analysis of welded structures.
  • Superalloy additive manufacturing: Cracking and microstructural evolution in directed energy deposition, including composition, process and external-field effects.
  • Joint strengthening and stress control: Strengthening and toughening mechanisms, and residual-stress measurement and control for improved joint reliability.

Publications & honors

  1. Moderate-temperature annealing mitigates irradiation damage in the white bright band of SA508–3/52(M) jointsChuanzong Li; Junmei Chen; Jijin Xu; Jieshi Chen; Chun Yu; Hao Lu.Journal of Nuclear Materials, 2026, 632, 156900.
  2. Ultrasonic-assisted additive manufacturing of crack-free IN738/CuCrZr dissimilar components: Interfacial evolution and gradient microstructure formationZiyu Tian; Yi Zheng; Yizhe Liu; Jiaao Ning; Chuanzong Li; Junmei Chen; Chun Yu; Jijin Xu; Huabin Chen; Hao Lu.Journal of Materials Processing Technology, 2026, 355, 119401.
  3. Development and validation of constitutive modelling in Zr-2 alloy welded joints based on dislocations-driven mixed hardening mechanismRuoyu Li; Junjun Yao; Shuai Wang; Le Mei; Junbao Zhang; Chun Yu; Jijin Xu.Journal of Nuclear Materials, 2026, 624, 156504.
  4. Effect of initial grain size on the interfacial bonding behavior of CoCrFeMnNi high-entropy alloy joints produced by vacuum hot-compression bondingChuanzong Li; Chuansen Fan; Junmei Chen; Jijin Xu; Jieshi Chen; Hao Lu; Chun Yu.Intermetallics, 2026, 188, 109048.

Honors

  • First Prize, Shanghai Science and Technology Progress Award, as a major project participant.
  • Second Prize, the Second SJTU Young Faculty Teaching Competition.
  • Second Prize in the second edition and Third Prize in the first edition of the School of Materials Science and Engineering’s Lide Shuren Young Faculty Teaching Competition.