Tungsten heavy alloys (WHAs) belong to a group of two-phase composites, based on W-Ni-Cu and W-Ni-Fe alloys. Due to\ntheir combinations of high density, strength, and ductility,WHAs are used as radiation shields, vibration dampers, kinetic energy\npenetrators and heavy-duty electrical contacts. This paper presents recent progresses in processing, microstructure, andmechanical\nproperties of WHAs. Various processing techniques for the fabrication of WHAs such as conventional powder metallurgy (PM),\nadvent of powder injectionmolding (PIM), high-energy ball milling (MA), microwave sintering (MW), and spark-plasma sintering\n(SPS) are reviewed for alloys. This review reveals that key factors affecting the performance of WHAs are the microstructural\nfactors such as tungsten and matrix composition, chemistry, shape, size and distributions of tungsten particles in matrix, and\ninterface-bonding strength between the tungsten particle and matrix in addition to processing factors. SPS approach has a better\nperformance than those of others, followed by extrusion process. Moreover, deformation behaviors of WHA penetrator and\ndepleted uranium (DU) Ti alloy impacting at normal incidence both rigid and thick mild steel target are studied and modelled\nas elastic thermoviscoplastic. Height of the mushroomed region is smaller for ? = 0.3 and it forms sooner in each penetrator as\ncompared to that for ? = 0.2.
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