Oxide dispersion strengthened 304 L stainless steel produced by ink jetting and laser powder bed fusion

Paul, Brian K.; Lee, Kijoon; He, Yujuan; Ghayoor, Milad; Chang, Chih-hung; Pasebani, Somayeh

doi:10.1016/j.cirp.2020.04.071

Oxide dispersion strengthened 304 L stainless steel produced by ink jetting and laser powder bed fusion

Journal Article · Sat May 16 00:00:00 EDT 2020 · CIRP Annals

DOI:https://doi.org/10.1016/j.cirp.2020.04.071· OSTI ID:1717912

Paul, Brian K. ^[1]; ^[2]; He, Yujuan ^[2]; Ghayoor, Milad ^[2]; ^[2]; Pasebani, Somayeh ^[2]

Oregon State Univ., Corvallis, OR (United States); Oregon State University
Oregon State Univ., Corvallis, OR (United States)

This paper discusses the fundamentals of a novel hybrid method to synthesize oxide dispersion strengthened (ODS) 304 L stainless steel (SS) alloy using a modified laser powder bed fusion (LPBF) machine. Previously, ODS metal matrix composites have been produced by LPBF via ball-milling, which is expensive to scale. Here, we selectively dope yttria nanoparticles into a SS matrix by jetting a precursor chemistry onto the SS substrate prior to laser conversion and consolidation. Here, the new alloy shows good room temperature mechanical properties. Microstructures are studied using electron microscopy, energy dispersive spectroscopy and electron backscatter diffraction.

View Accepted Manuscript (DOE)

Research Organization:: RAPID Manufacturing Inst., New York, NY (United States)

Sponsoring Organization:: Murdock Charitable Trust; USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office

Grant/Contract Number:: EE0007888

OSTI ID:: 1717912

Alternate ID(s):: OSTI ID: 1691843

Journal Information:: CIRP Annals, Journal Name: CIRP Annals Journal Issue: 1 Vol. 69; ISSN 0007-8506

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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