New Strategy for IN718 Laser Directed Energy Deposition: Layer-Synchronized Induction Heating Achieves Continuous Homogenization

2026-10-19

A new strategy published in Additive Manufacturing applies layer-synchronized induction heating during and after laser directed energy deposition (LDED) to achieve continuous homogenization of IN718, suppressing the harmful precipitation of Laves phases caused by Nb/Mo/Ti segregation. This provides a new pathway to replace post-deposition furnace homogenization heat treatment and improve creep performance.

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IN718激光定向能量沉积新策略：层同步感应加热实现连续均匀化

《Additive Manufacturing》刊发新策略：在激光定向能量沉积（LDED）过程中及之后施加层同步感应加热，对IN718实现连续均匀化，抑制Nb/Mo/Ti偏析导致的Laves相有害析出，为替代沉积后炉内均匀化热处理、提升蠕变性能提供新路径。

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