Processing, Microstructure, and Mechanical Behavior of Tungsten Heavy Alloys for Kinetic Energy Penetrators: A Critical Review

Tungsten heavy alloys (WHAs) are two-phase composites known for their exceptional density, strength, hardness, and ductility, making them ideal for radiation shielding, kinetic energy penetrators, and aerospace components. Due to their high melting point, WHAs are primarily processed via powder meta...

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Main Authors: Rajneesh Patel, Gangaraju Manogna Karthik, Pawan Sharma
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Journal of Manufacturing and Materials Processing
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Online Access:https://www.mdpi.com/2504-4494/9/6/186
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author Rajneesh Patel
Gangaraju Manogna Karthik
Pawan Sharma
author_facet Rajneesh Patel
Gangaraju Manogna Karthik
Pawan Sharma
author_sort Rajneesh Patel
collection DOAJ
description Tungsten heavy alloys (WHAs) are two-phase composites known for their exceptional density, strength, hardness, and ductility, making them ideal for radiation shielding, kinetic energy penetrators, and aerospace components. Due to their high melting point, WHAs are primarily processed via powder metallurgy, with liquid-phase sintering (LPS). Spark plasma sintering (SPS) and microwave sintering are emerging as advanced consolidation techniques. Recent research has focused on improving WHA performance through microstructural manipulation, alloying with elements like Fe, Co, Mo, and Re; rare earth oxides like Y<sub>2</sub>O<sub>3</sub>, La<sub>2</sub>O<sub>3</sub>, and Ce<sub>2</sub>O<sub>3</sub>; and employing high-entropy alloys (HEAs) as matrix phase. Additionally, additive manufacturing (AM) techniques are increasingly being used to fabricate complex WHA components. Despite their advantages, WHAs still exhibit limitations in penetration performance, primarily due to their tendency to form mushroom-like heads upon impact rather than self-sharpening. Ongoing research seeks to enhance shear localization, refine grain structure, and optimize processing methods to improve the mechanical properties and impact resistance of WHAs. Furthermore, modeling and simulation approaches are being explored to understand the mechanical behavior of WHAs. This review comprehensively overviews the above aspects and presents recent advances in WHA processing.
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spelling doaj-art-06ef9dc9c2754e539160b0721d90d2da2025-08-20T03:27:25ZengMDPI AGJournal of Manufacturing and Materials Processing2504-44942025-06-019618610.3390/jmmp9060186Processing, Microstructure, and Mechanical Behavior of Tungsten Heavy Alloys for Kinetic Energy Penetrators: A Critical ReviewRajneesh Patel0Gangaraju Manogna Karthik1Pawan Sharma2Department of Mechanical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, IndiaDepartment of Mechanical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, IndiaDepartment of Mechanical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, IndiaTungsten heavy alloys (WHAs) are two-phase composites known for their exceptional density, strength, hardness, and ductility, making them ideal for radiation shielding, kinetic energy penetrators, and aerospace components. Due to their high melting point, WHAs are primarily processed via powder metallurgy, with liquid-phase sintering (LPS). Spark plasma sintering (SPS) and microwave sintering are emerging as advanced consolidation techniques. Recent research has focused on improving WHA performance through microstructural manipulation, alloying with elements like Fe, Co, Mo, and Re; rare earth oxides like Y<sub>2</sub>O<sub>3</sub>, La<sub>2</sub>O<sub>3</sub>, and Ce<sub>2</sub>O<sub>3</sub>; and employing high-entropy alloys (HEAs) as matrix phase. Additionally, additive manufacturing (AM) techniques are increasingly being used to fabricate complex WHA components. Despite their advantages, WHAs still exhibit limitations in penetration performance, primarily due to their tendency to form mushroom-like heads upon impact rather than self-sharpening. Ongoing research seeks to enhance shear localization, refine grain structure, and optimize processing methods to improve the mechanical properties and impact resistance of WHAs. Furthermore, modeling and simulation approaches are being explored to understand the mechanical behavior of WHAs. This review comprehensively overviews the above aspects and presents recent advances in WHA processing.https://www.mdpi.com/2504-4494/9/6/186tungsten heavy alloysprocessingmicrostructuresdeformation behaviormechanical propertiesmodeling and simulations
spellingShingle Rajneesh Patel
Gangaraju Manogna Karthik
Pawan Sharma
Processing, Microstructure, and Mechanical Behavior of Tungsten Heavy Alloys for Kinetic Energy Penetrators: A Critical Review
Journal of Manufacturing and Materials Processing
tungsten heavy alloys
processing
microstructures
deformation behavior
mechanical properties
modeling and simulations
title Processing, Microstructure, and Mechanical Behavior of Tungsten Heavy Alloys for Kinetic Energy Penetrators: A Critical Review
title_full Processing, Microstructure, and Mechanical Behavior of Tungsten Heavy Alloys for Kinetic Energy Penetrators: A Critical Review
title_fullStr Processing, Microstructure, and Mechanical Behavior of Tungsten Heavy Alloys for Kinetic Energy Penetrators: A Critical Review
title_full_unstemmed Processing, Microstructure, and Mechanical Behavior of Tungsten Heavy Alloys for Kinetic Energy Penetrators: A Critical Review
title_short Processing, Microstructure, and Mechanical Behavior of Tungsten Heavy Alloys for Kinetic Energy Penetrators: A Critical Review
title_sort processing microstructure and mechanical behavior of tungsten heavy alloys for kinetic energy penetrators a critical review
topic tungsten heavy alloys
processing
microstructures
deformation behavior
mechanical properties
modeling and simulations
url https://www.mdpi.com/2504-4494/9/6/186
work_keys_str_mv AT rajneeshpatel processingmicrostructureandmechanicalbehavioroftungstenheavyalloysforkineticenergypenetratorsacriticalreview
AT gangarajumanognakarthik processingmicrostructureandmechanicalbehavioroftungstenheavyalloysforkineticenergypenetratorsacriticalreview
AT pawansharma processingmicrostructureandmechanicalbehavioroftungstenheavyalloysforkineticenergypenetratorsacriticalreview