Effect of tungsten content on microstructure and mechanical properties of swaged tungsten heavy alloys

Fabrication, characterization, and mechanical properties of 93W–4.9Ni–2.1Fe/95W–2.8Ni–1.2Fe–1Al2O3 heavy alloy composites

“…The embrittlement of WHA mainly results from the residual porosity [17], high W-W contiguity [18], high W content [18][19][20], impurity segregation [21], and hydrogen embrittlement [17,22]. However, for WHA high toughness and embrittlement always oppose each other.…”

Effect of alloying addition and microstructural parameters on mechanical properties of 93% tungsten heavy alloys

“…Increasing tungsten (>93%) results in increase in the density of the alloy leading to higher depth of penetration. However, the alloys containing higher tungsten exhibit inferior mechanical properties [10][11]. Since, 90% W with nickel and iron are widely used composition and alloys with higher tungsten have received less attention, it was decided to study alloys with 93% tungsten base alloys with minor additions of Co and Re and correlate mechanical properties with underlying microstructure.…”

The Effect of Cold Swaging of Tungsten Heavy Alloy with the Composition W91-6Ni-3Co on the Mechanical Properties

“…The results obtained depended of the cold swaging deformation value and the initial length of the rod. Hardness, microhardness, and microstructure observations were performed for the materials thus obtained, and tests of mechanical properties were carried out using a static tensile test [ 33 , 34 ]. The aim of the static tensile test was to determine: tensile strength , yield strength , elongation ε.…”