Search NASA⌕ Search
Home/Archive/DOE OSTI

DOE OSTI · 3682467

Development of Nb-1Zr Powder for Metal Additive Manufacturing

Hyer, Holden [ORNL] (ORCID:0000000343915561)·Ekaputra, Clement [ORNL] (ORCID:0000000307166479)·Kendall, Josh [ORNL] (ORCID:0009000052223626)·Thompson, Michael [ORNL] (ORCID:0000000299541629)·Lowe, Tracie [ORNL]·Shyam, Amit [ORNL] (ORCID:0000000267224709)
View original source ↗Read source document ↗Export metadata ↓

Abstract

The source did not provide an abstract. Follow the original record for more information.

Keep this discovery

BibTeXRIS

Hyer, Holden [ORNL] (ORCID:0000000343915561), Ekaputra, Clement [ORNL] (ORCID:0000000307166479), Kendall, Josh [ORNL] (ORCID:0009000052223626), Thompson, Michael [ORNL] (ORCID:0000000299541629), Lowe, Tracie [ORNL], Shyam, Amit [ORNL] (ORCID:0000000267224709). 2026-09-01. Development of Nb-1Zr Powder for Metal Additive Manufacturing. https://doi.org/10.2172/3682467

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related discoveries

DOE OSTI2025

Strategies for Fabricating Molybdenum Structures Using Laser Powder Bed Fusion

Advances in manufacturing techniques are viewed as enabling technologies for development of high performance nuclear fuel forms that couple high uranium density with improvements to key properties such as thermal conductivity unattainable through conventional fabrication routes. Additive manufacturing (AM) enables the fabrication of complex fuel geometries that are difficult or impossible to achieve using conventional manufacturing methods. Melting-based AM processes, such as laser powder bed fusion (LPBF), provide high geometric resolution (>200 µm depending on the feature) across a variety of metal alloys, including those suitable for high-temperature fuel cladding applications, such as Nb, W, and Mo. Molybdenum is particularly attractive due to its high thermal conductivity, low thermal expansion, and excellent mechanical stability at elevated temperatures. However, its high melting temperature and brittle nature at low temperatures pose significant challenges during LPBF processing. Rapid solidification inherent to LPBF induces high residual stresses, often leading to post-solidification cracking, which limits the manufacturability of Mo components via this method.

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS↗
DOE OSTI2026

Effect of directed energy deposition process parameter on build quality of tantalum

Tantalum is a refractory metal used in a variety of harsh environment applications. Additive manufacturing of tantalum is limited based on its high melting point and affinity for oxygen. Directed Energy Deposition is an additive manufacturing technique with rapid deposition time and compositional flexibility within builds. Additively manufactured tantalum is susceptible to a variety of material and process-based defects. Various lack-of-fusion defects were identified resulting from excessive powder feed rates or insufficient laser power. Oxygen impurities in some samples caused cracking and increased material hardness. Precipitates were identified in the highly oxidized samples which were printed immediately after the build chamber was opened. High-density, low-defect parts were successfully produced. The effects of scan speed, laser power, and powder feed rate on density and defects were analyzed. A processing window was identified for producing high-quality parts which requires adequately high laser power and lower powder feed rate.

DED↗