Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

High-throughput additive manufacturing and characterization of refractory high entropy alloys

Journal Article · · Applied Materials Today
 [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Material, Physical, and Chemical Sciences Center

Refractory High Entropy Alloys (RHEAs) and Refractory Complex Concentrated Alloys (RCCAs) are high-temperature structural alloys ideally suited for use in harsh environments. While these alloys have shown promising structural properties at high temperatures that exceed the practical limits of conventional alloys, such as Ni-based superalloys, exploration of the complex phase-space of these materials remains a significant challenge. We report on a high-throughput alloy processing and characterization methodology, leveraging laser-based metal additive manufacturing (AM) and mechanical testing techniques, to enable rapid exploration of RHEAs/RCCAs. We utilized in situ alloying and compositional grading, unique to AM processing, to rapidly-produce RHEAs/RCCAs using readily available and inexpensive commercial elemental powders. We demonstrate this approach with the MoNbTaW alloy system, as a model material known for having exceptionally high strength at elevated temperature when processed using conventional methods (e.g., casting). Microstructure analysis, chemical composition, and strain rate dependent hardness of AM-processed material are presented and discussed in the context of understanding the structure-properties relationships of RHEAs/RCCAs.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1605719
Alternate ID(s):
OSTI ID: 1781159
Report Number(s):
SAND--2020-2842J; 684575
Journal Information:
Applied Materials Today, Journal Name: Applied Materials Today Journal Issue: C Vol. 19; ISSN 2352-9407
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (66)

The temperature and strain rate dependence of the flow stress of tantalum journal August 1977
On the columnar to equiaxed transition in small ingots journal March 1977
Experiments on the solidification structure of alloy castings journal September 1971
The thermal-mechanical behavior of WTaMoNb high-entropy alloy via selective laser melting (SLM): experiment and simulation journal January 2018
Simulation and experimental comparison of the thermo-mechanical history and 3D microstructure evolution of 304L stainless steel tubes manufactured using LENS journal December 2017
The Effect of Nb on the Recrystallization and Grain Growth of Ultra-High-Purity α-Fe: A Combinatorial Approach journal April 2007
Characterization of Strain-Rate Sensitivity and Grain Boundary Structure in Nanocrystalline Gold-Copper Alloys journal September 2009
An Experimental Investigation into Additive Manufacturing-Induced Residual Stresses in 316L Stainless Steel journal September 2014
Using In Situ Neutron Diffraction to Isolate Specific Features of Additively Manufactured Microstructures in 304L Stainless Steel and Identify Their Effects on Macroscopic Strength journal May 2019
Compressive and Tensile Stress–Strain Responses of Additively Manufactured (AM) 304L Stainless Steel at High Strain Rates journal June 2017
Computer simulation of the effects of alloy variables on the grain structures of castings journal July 1989
Steady state columnar and equiaxed growth of dendrites and eutectic journal July 1984
On evaluating the flow stress in niobium of commercial purity journal May 1995
Solute drag, solute trapping and diffusional dissipation of Gibbs energy11This paper is based on the Hume–Rothery Lecture presented at the 128th TMS Annual Meeting, 1 March 1999, San Diego, U.S.A. journal December 1999
Critical examination of strain-rate sensitivity measurement by nanoindentation methods: Application to severely deformed niobium journal February 2008
Enhanced solid solution effects on the strength of nanocrystalline alloys journal February 2011
Rapid alloy prototyping: Compositional and thermo-mechanical high throughput bulk combinatorial design of structural materials based on the example of 30Mn–1.2C–xAl triplex steels journal July 2012
A critical review of high entropy alloys and related concepts journal January 2017
Structure/property (constitutive and spallation response) of additively manufactured 316L stainless steel journal October 2017
Structure and hydrogen storage properties of a high entropy ZrTiVCrFeNi alloy synthesized using Laser Engineered Net Shaping (LENS) journal September 2013
Microstructure and hydrogen storage properties of a TiZrNbMoV high entropy alloy synthesized using Laser Engineered Net Shaping (LENS) journal June 2014
Size effects on the mechanical properties of nanocrystalline NbMoTaW refractory high entropy alloy thin films journal August 2017
Refractory high-entropy alloys journal September 2010
Mechanical properties of Nb25Mo25Ta25W25 and V20Nb20Mo20Ta20W20 refractory high entropy alloys journal May 2011
Microstructures and properties of an equimolar AlCoCrFeNi high entropy alloy printed by selective laser melting journal January 2019
Microstructural, mechanical and electrochemical characterization of TiZrTaHfNb and Ti1.5ZrTa0.5Hf0.5Nb0.5 refractory high-entropy alloys for biomedical applications journal October 2019
Microstructural characterisation of high-entropy alloy AlCoCrFeNi fabricated by laser engineered net shaping journal November 2015
Combinatorial synthesis of high entropy alloys: Introduction of a novel, single phase, body-centered-cubic FeMnCoCrAl solid solution journal January 2017
Evolution of microstructure, mechanical and corrosion properties of AlCoCrFeNi high-entropy alloy prepared by direct laser fabrication journal February 2017
Selective laser melting of an equiatomic CoCrFeMnNi high-entropy alloy: Processability, non-equilibrium microstructure and mechanical property journal May 2018
Microstructures and mechanical properties of CrMnFeCoNi high entropy alloys fabricated using laser metal deposition technique journal January 2019
High-throughput stochastic tensile performance of additively manufactured stainless steel journal March 2017
Nanosized precipitates and dislocation networks reinforced C-containing CoCrFeNi high-entropy alloy fabricated by selective laser melting journal October 2018
On the machining of selective laser melting CoCrFeMnNi high-entropy alloy journal September 2018
Additively manufactured CoCrFeNiMn high-entropy alloy via pre-alloyed powder journal April 2019
First demonstration of promising selective electron beam melting method for utilizing high-entropy alloys as engineering materials journal November 2015
CoCrFeNiTi-based high-entropy alloy with superior tensile strength and corrosion resistance achieved by a combination of additive manufacturing using selective electron beam melting and solution treatment journal February 2017
Laser 3D printing of CoCrFeMnNi high-entropy alloy journal February 2019
High-entropy alloy: challenges and prospects journal July 2016
Effect of nanocrystalline and ultrafine grain sizes on the strain rate sensitivity and activation volume: fcc versus bcc metals journal September 2004
Dynamic tensile behavior of electron beam additive manufactured Ti6Al4V journal August 2015
Non-equiatomic high entropy alloys: Approach towards rapid alloy screening and property-oriented design journal November 2015
NbTaV-(Ti,W) refractory high-entropy alloys: Experiments and modeling journal September 2016
Combining thermodynamic modeling and 3D printing of elemental powder blends for high-throughput investigation of high-entropy alloys – Towards rapid alloy screening and design journal March 2017
Microstructure, strain-rate sensitivity, work hardening, and fracture behavior of laser additive manufactured austenitic and martensitic stainless steel structures journal May 2019
Strain rate sensitivity of a novel refractory high entropy alloy: Intrinsic versus extrinsic effects journal October 2019
Direct Metal Deposition of Refractory High Entropy Alloy MoNbTaW journal January 2016
The use of high-entropy alloys in additive manufacturing journal April 2015
In-situ high throughput synthesis of high-entropy alloys journal February 2019
Synthesis and characterization of refractory TiZrNbWMo high-entropy alloy coating by laser cladding journal February 2017
Effect of Strain Rate Upon Plastic Flow of Steel journal January 1944
Alloy design for intrinsically ductile refractory high-entropy alloys journal October 2016
Additive manufacturing of metals: a brief review of the characteristic microstructures and properties of steels, Ti-6Al-4V and high-entropy alloys journal January 2017
The mechanical properties, dislocation sub-structure and density in niobium single crystals deformed at high strain rates journal September 1969
The Deformation and Ageing of Mild Steel: III Discussion of Results journal September 1951
Tuning Ideal Tensile Strengths and Intrinsic Ductility of bcc Refractory Alloys journal March 2014
Epitaxy and Microstructure Evolution in Metal Additive Manufacturing journal July 2016
The Diffusion-Multiple Approach to Designing Alloys journal August 2005
Columnar to equiaxed grain transition in as solidified alloys journal August 2006
Site specific control of crystallographic grain orientation through electron beam additive manufacturing journal November 2014
Critical Assessment 14: High entropy alloys and their development as structural materials journal January 2015
Strain rate sensitivity and mechanical anisotropy of selective laser melted 17-4 PH stainless steel journal January 2014
Development and exploration of refractory high entropy alloys—A review journal June 2018
Progress toward autonomous experimental systems for alloy development journal April 2019
Five Decades of the Zener Equation. journal January 1998
Exploration and Development of High Entropy Alloys for Structural Applications journal January 2014

Similar Records

Characterization of Refractory Alloys Produced by Laser Additive Manufacturing
Journal Article · Wed Nov 23 23:00:00 EST 2022 · Material Design & Processing Communications · OSTI ID:1899723

The Path towards Plasma Facing Components: A Review of State-of-the-art in W-Based Refractory High-Entropy Alloys
Journal Article · Tue Dec 31 23:00:00 EST 2024 · Current Opinion in Solid State and Materials Science · OSTI ID:2557961

Laser metal deposition of refractory high-entropy alloys for high-throughput synthesis and structure-property characterization
Journal Article · Tue Dec 29 23:00:00 EST 2020 · International Journal of Extreme Manufacturing · OSTI ID:1860602