DataVXJournal of Materials Engineering and PerformancePaper
journal article·2021-09Open access

Effects of Post-processing on the Surface Finish, Porosity, Residual Stresses, and Fatigue Performance of Additive Manufactured Metals: A Review

Chang Ye, Chaoyi Zhang, Jingyi Zhao, Yalin Dong

Journal of Materials Engineering and Performance· Volume 30· Issue 9
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Source abstract

Abstract

Additive manufacturing (AM) has attracted much attention due to its capability in building parts with complex geometries. Unfortunately, AM metals suffer from three major drawbacks, including high porosity, poor surface finish, and tensile residual stresses, all of which will significantly compromise the fatigue performance. These drawbacks present a major obstacle to the application of AM metals in industries that produce fatigue-sensitive components. Many post-processing methods, including heat treatment, hot isotropic pressing, laser shock peening, ultrasonic nanocrystal surface modification, advanced finishing and machining, and laser polishing, have been used to treat AM metals to decrease their porosity, improve the surface finish, and eliminate tensile residual stresses. As a result, significant improvement in fatigue performance has been observed. In this paper, the state of the art in utilizing post-processing techniques to treat AM metals and the effects of these treatments on the porosity, surface finish, and residual stresses of metal components and their resultant fatigue performance are reviewed.
Source: europepmc · Quality: candidate unverified · Source record ↗

Research context

NanomaterialsMaterials processing

OpenAlex topics: Additive Manufacturing Materials and Processes · Additive Manufacturing and 3D Printing Technologies · Surface Treatment and Residual Stress

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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