Author

Bai-Xiang Xu

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Open access Oct 2026

Thermal and elasto-plastic simulations of dual-laser powder bed fusion and comparative study of various scan strategies

Laser powder bed fusion involves highly localized and transient heat input, resulting in steep thermal gradients and residual stresses that may lead to distortion, cracking, and non-uniform mechanical properties. Dual-laser powder bed fusion (D-LPBF) incorporates a secondary laser to locally modulate the thermal field,...

Yi-Fan Suo, Yangyiwei Yang, Bilal Gökce et al. · Engineering computations · 0 citations

Open access Sep 2026

Precise Nanoscale Mapping of Electric Fields Across Random Grain Boundaries in Polycrystalline Oxides Using Precession-Assisted 4D-STEM.

Space charge layers (SCLs) at grain boundaries play a crucial role in modulating electric fields and thereby influence functional properties of materials. However, experimental analysis of these localized electric fields and the corresponding charge distribution remains challenging. Conventional center-of-mass (CoM) an...

Sang-Jun Kang, Hyeyoung Cho, Maximilian Töllner et al. · Small · 0 citations