Publications

Displaying 1 - 5 of 5

Material Challenges in Developing a Sustainable Metal Processing Infrastructure - Workshop Report

September 23, 2025

Author(s)

Andrew Iams, James Zuback, Mark Stoudt, Carelyn Campbell

As metals and manufacturing industries continue to transition towards sustainable and circular principals, innovations are needed to address a variety of challenges. Multidisciplinary solutions are required across the materials lifecycle, from extraction

Contributions of sub-surface intergranular phases on fatigue crack initiation in additively manufactured austenitic stainless steel

August 18, 2025

Author(s)

Ian Wietecha-Reiman, Andrew Iams, S. Sabol, T. Palmer

Fatigue failures in additively manufactured 316L austenitic stainless steel produced using laser powder bed fusion processes are often attributed to the presence of process-related defects or surface roughness. To better investigate the role of surface

Microstructural Features and Metastable Phase Formation in a High-Strength Aluminum Alloy Fabricated Using Additive Manufacturing

April 25, 2025

Author(s)

Andrew Iams, Jordan Weaver, Brandon Lane, Lucille Giannuzzi, Feng Yi, Darby LaPlant, John Martin, Fan Zhang

Additive manufacturing (AM) has captured recent attention for its potential to fabricate high-strength aluminum alloy components. A detailed understanding of the microstructure under the as-fabricated conditions is required to harness its potential. We

Enhanced localized corrosion resistance of Ni-based alloy 625 processed by directed energy deposition additive manufacturing

April 15, 2024

Author(s)

Karthikeyan Hariharan, Andrew Iams, James Zuback, Todd Palmer, Narasi Sridhar, Rashed Alazemi, Gerald Frankel, Eric Schindelholz

We report a significant improvement in localized corrosion resistance of Ni-based alloy 625 processed by directed energy deposition (DED) in an aggressive aqueous chloride environment. Disparities observed in the polarization behavior between DED and

Effects of Deposition Sequence on Microstructural Formation in Additively Manufactured GRCop-42 / Alloy 718 Bimetallic Structures

May 23, 2023

Author(s)

Andrew Iams, Tom Lienert, David Otazu, Monsuru Ramoni

Although Cu-Cr-Nb alloys / superalloys bimetallic components for liquid rocket engine applications have been fabricated using additive manufacturing, a detailed understanding of their process-structure relation is currently lacking. To bridge this gap

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