Verdi, D., Varadaraju, N., Tan Zhi’En, E., Patran, A. (2021). Effect of Manufacturing Strategy on the Toughness Behavior of Inconel 625 Laser Metal Deposited Parts. Advanced Engineering Materials, 23(7), 2001506. doi:10.1002/adem.202001506
Abstract:
Nickel-based superalloys are broadly used to produce high value added components in industrial sectors such as oil and gas, aerospace, energy production, etc. Additive manufacturing represents a viable alternative family of processes for near-net shape fabrication. Herein, it presents results related to the toughness behavior of laser metal deposited Inconel 625 samples under impact tests, in the as-deposited and post heat-treated condition. Laser metal deposition is used to build Inconel 625 Charpy impact tests samples in two different orientations: vertical and horizontal. Half of the samples for each build orientation are subjected to annealing heat treatment whereas the remainder are kept as-built. Distinct toughness behaviors are observed, with the vertical builds exhibiting a higher absorbed energy than the horizontal one. Furthermore, a decrease in
absorbed energy after heat-treatment is observed in the Charpy impact test results for both deposition orientation samples. A similar behavior is observed through Vickers microhardness measurements. However, in this case, although the horizontal deposited samples result always harder than the vertical ones, the heat treatment reduces the hardness difference between the two deposition directions. The obtained results highlight the influence of the manufacturing strategy on the toughness of the final components.
License type:
Publisher Copyright
Funding Info:
This research is supported by the A*STAR Advanced Remanufacturing and Technology Centre (ARTC) and voestalpine Additive Manufacturing Center Singapore Pte. Ltd. (vAMCS), under the project “Parameter development and material characterization for laser metal deposition” (M17-01-VOE and M18_01_VOE)
Description:
This is the peer reviewed version of the following article: Verdi, D., Varadaraju, N., Tan Zhi’En, E., & Patran, A. (2021). Effect of Manufacturing Strategy on the Toughness Behavior of Inconel 625 Laser Metal Deposited Parts. Advanced Engineering Materials, 23(7), 2001506. doi:10.1002/adem.202001506, which has been published in final form at http://dx.doi.org/10.1002/adem.202001506. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.