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resistance and mechanical properties. This alloy is particularly applicable in manufacturing
components subjected to high temperatures in rocket engines, aero-engines, and gas turbines.
Properties for this alloy when processing on systems from similar and different Laser Powder Bed
Fusion (L-PBF) machines provide subtle differences due to process parameters, feedstock, and
machine configurations. A series of sixteen L-PBF AM Inconel 718 geometric feature build plates
have been evaluated for microstructure using optical microscopy. This study presents the details
of the microstructure analysis concerning geometry and different machine platforms.
Microstructural investigations of these samples included average grain width measurement for all
the X-Y and Y-Z build layers and are accompanied by process parameters and powder
characterization. The present work concludes with a discussion on the importance of captured
differences among builds to understand the practical limitations among AM platforms.
Document ID
20220013119
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Date Acquired
August 25, 2022
Subject Category
Meeting Information
Meeting: 33rd Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
Location: San Antonio, TX
Country: US
Start Date: July 25, 2022
End Date: July 27, 2022
Sponsors: The University of Texas at Austin
Funding Number(s)
Distribution Limits
Public
Copyright
Use by or on behalf of the US Gov. Permitted.
Technical Review
External Peer Committee
Keywords
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