Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

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

Published

Author(s)

Mark R. Stoudt, Maureen E. Williams, Lyle E. Levine, Adam A. Creuziger, Sandra A. Young, Jarred C. Heigel, Brandon M. 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

Keywords

additive manufacturing, benchmark measurements, microstructure characterization
Created March 3, 2020, Updated April 15, 2020