Inconel 718 was experimentally investigated in this paper due to the excellent mechanical properties and broad application area in aerospace industry. The purpose of current study is to improve surface strength of Inconel 718 samples having undesired white layer and microcracks because of electrical discharge machining process. In this research, newly developed GOV (flow peening) process by benefiting the superior capabilities of shot peening and abrasive flow machining such as generating compressive residual stresses which increases the corrosion resistance, surface strength, fatigue life and surface enhancement is applied to strengthen surfaces. SEM images were evaluated to verify the results of GOV process performance parameters on microhardness, residual stress, surface roughness and white layer removal. Consequently, compressive residual stress of − 1173.3 MPa, surface hardness of 545.5 HV and surface roughness R_a value of 0.46 µm were obtained for Inconel 718 by GOV process.

由于Inconel 718优异的机械性能和在航空航天工业中广泛的应用领域，本文对Inconel 718进行了实验研究。当前研究的目的是提高 Inconel 718 样品的表面强度，这些样品因放电加工过程而产生不希望有的白层和微裂纹。在这项研究中，新开发的GOV（流喷）工艺受益于喷丸和磨粒流加工的优越能力，例如产生压缩残余应力，从而提高耐腐蚀性、表面强度、疲劳寿命和表面强化，用于强化表面。对 SEM 图像进行评估，以验证 GOV 工艺性能参数在显微硬度、残余应力、表面粗糙度和白层去除方面的结果。结果，通过GOV工艺获得的Inconel 718的残余压缩应力为- 1173.3 MPa，表面硬度为545.5 HV，表面粗糙度R_{值为0.46 µm。}