研究了感应加热局部热处理和真空炉整体热处理对激光沉积修复GH4169 合金修复件残余应力和拉伸性能的影响。结果表明，激光沉积修复GH4169 合金修复件经直接时效热处理后，组织特征变化不大，具有较强生长取向性的外延枝晶组织特征，但枝晶间Laves 相出现了部分溶解，残余应力明显消减，拉伸强度显著提高。相比沉积态修复件，局部热处理后残余应力平均降低了33%以上，拉伸强度达到了锻件水平的86%以上；真空热处理后残余应力平均降低了43%以上，拉伸强度达到了锻件水平。

The effects of induction heating local heat treatment and vacuum furnace overall heat treatment on the residual stress and tensile properties of laser deposition repair GH4169 superalloy are investigated. As compared with as-deposited samples, direct aged microstructure of laser deposition repair GH4169 superalloy changes little, and still presents the microstructural characteristic of columnar dendrites which grow epitaxially from the substrate. But Laves phase of interdendritic dissolves partly. The residual stress is reduced. The tensile strength is significantly improved. After local heat treatment, the residual stress decreases averagely more than 33%, and the tensile strength reaches over 86% of the mechanical properties of forgings. After vacuum heat treatment, the residual stress decreases averagely more than 43%, and the tensile strength reaches the mechanical properties of forgings.