Processing and Properties of Tungsten Heavy AUoys with Ni48Al12Fe40Inteimetallic Matrix

Guha, S.; Kyriacou, C.; Withers, James C.; Loutfy, Raouf O.; Gray, George T.; Dowding, Robert J.

doi:10.1080/10426919408934983

Cited by 8 publications

(2 citation statements)

References 5 publications

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“…A way to improve susceptibility to adiabatic shear [6][7][8] of WHAs is preparing fine-grained W particles WHAs. The methods for refining W particles include-adding alloying elements [9,10] or using a new matrix [11] to suppress the solubility of tungsten particles in the matrix and reduce their growth rate. Adopting new preparation technology slows down the growth of tungsten particles, such as microwave sintering [12] , spark plasma sintering [8] , additive manufacturing [6] , and a novel ultrashort time laser liquid sintering method (LULPS) to form WHAs based on 3D printing [6] ).…”

Section: Introductionmentioning

confidence: 99%

Effect of W particle size on mechanical properties of a tungsten heavy alloy

Zhu

et al. 2022

J. Phys.: Conf. Ser.

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Preparing fine tungsten particles tungsten heavy alloys (WHAs) is a method to improve the susceptibility to adiabatic shear of WHAs. In this paper, W-AlCrFeNiV alloy (W-HEA) with different size W particles were prepared by laser ultrashort-time liquid phase sintering (LULPS) and liquid phase sintering (LPS). The effects of W particle size of W-HEA on mechanical property and susceptibility to adiabatic shear are studied. The results show that W-HEA with 3 μm W particles has excellent mechanical properties-tensile strength nearly 1500 MPa. The tensile strength is 58% higher than that W-HEA with 20 μm W particle. W-HEA with 3 μm W particle dynamic compression strength is 2200 MPa under 4000 s-1. The dynamic strength is 22% higher than that tungsten heavy alloy with 20 μm W particle. And the smaller W particles are, the stronger susceptibility to adiabatic shear is. The adiabatic shear band width of W-HEA with 3 μm W particles is 10 μm after dynamic compression.

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Section: Introductionmentioning

confidence: 99%

Effect of W particle size on mechanical properties of a tungsten heavy alloy

Zhu

et al. 2022

J. Phys.: Conf. Ser.

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“…There have been many researchers to investigate the method to refine the microstructures of tungsten heavy alloys [6][7][8][9][10]. To promote adiabatic shear bands in WHAs, a recent approach involves processing of tungsten composite using intermetallics and amorphous as matrix [11,12]. Mechanical alloying (MA) is a dry powder processing technique and has been used to synthesis both equilibrium and metastable phases of commercially useful and scientifically interesting materials.…”

Section: Introductionmentioning

confidence: 99%