Evaluation of Variations in Solution Annealing, Intercritical Annealing, and Aging Treatments on Cobalt-free Maraging Steels

Published

September 22, 2025

Author(s)

Nicholas Derimow, Jake Benzing, Alec Saville, Cassidy Allen, Jordan Weaver, Nikolas Hrabe, Timothy Quinn, Timothy Weeks, Newell Moser, Chad Beamer, Christin Aumayr, Tilman Seifert, Michael Hirtler

Abstract

This work is a compilation and summary of the quasi-static mechanical properties of a novel cobalt-free maraging steel, M789, that underwent a series of various heat treatments which included solution annealing, intercritical annealing, and aging temperatures. This work utilized a single laser powder bed fusion (PBF-L) build to ensure uniform chemistry of the batch of specimens. The tensile geometry consisted of miniaturized tensile specimens, and were tested to failure to asses properties such as the yield strength, ultimate tensile strength, uniform elongation, elastic modulus, and total elongation. The results are presented in tabular and graphical format.

Citation

Technical Note (NIST TN) - 2352

Report Number

2352

NIST Pub Series

Technical Note (NIST TN)

Pub Type

NIST Pubs

Download Paper

https://doi.org/10.6028/NIST.TN.2352

Local Download

Keywords

Additive Manufacturing, Cobalt-free Maraging Steels, Heat Treatments, Laser Powder Bed Fusion, Tensile Properties

Citation

Derimow, N. , Benzing, J. , Saville, A. , Allen, C. , Weaver, J. , Hrabe, N. , Quinn, T. , Weeks, T. , Moser, N. , Beamer, C. , Aumayr, C. , Seifert, T. and Hirtler, M. (2025), Evaluation of Variations in Solution Annealing, Intercritical Annealing, and Aging Treatments on Cobalt-free Maraging Steels, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.TN.2352, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=960655 (Accessed September 30, 2025)