Location-specific Microstructure Characterization Within IN625 Additive Manufacturing Benchmark Test Artifacts

Published

March 3, 2020

Author(s)

Mark R. Stoudt, Maureen E. Williams, Lyle E. Levine, Adam Abel Creuziger, Sandra A. Young, Jarred C. Heigel, Brandon Lane, Thien Q. Phan

Abstract

Additive manufacturing (AM) of metals creates segregated microstructures with significant differences from those of traditional wrought alloys. Understanding how the local build conditions generate specific microstructures is essential for developing post-build heat treatments with the goal of producing parts with reliable and predictable properties. This research examines the position- and orientation-dependent microstructures within IN625 Additive Manufacturing Benchmark Test specimens, including three dimensional AM builds and individual laser traces on bare metal plates. Detailed characterizations of the solidification microstructures, compositional heterogeneities, grain structures and orientations, and melt pool geometries are described.

Citation

Integrating Materials and Manufacturing Innovation

Issue

9

Pub Type

Journals

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Keywords

additive manufacturing, benchmark measurements, microstructure characterization

Citation

Stoudt, M. , Williams, M. , Levine, L. , Creuziger, A. , Young, S. , Heigel, J. , Lane, B. and Phan, T. (2020), Location-specific Microstructure Characterization Within IN625 Additive Manufacturing Benchmark Test Artifacts, Integrating Materials and Manufacturing Innovation, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=928265 (Accessed May 8, 2024)