Response of aluminium-infiltrated boron carbide cermets to shock wave loading

Blumenthal, W.R.; Gray, George T.; Claytor, T.N.

doi:10.1007/bf00376280

Cited by 57 publications

(26 citation statements)

References 12 publications

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“…Considering that Al alloy based B 4 Cp composites being light weight functional material for emerging industrial applications have potential applications including strategic sectors structural neutron absorber, armor plate materials, brake disks for automotive industry and as a substrate material for computer hard disks [16,52,53], and only limited studies are made on Al 6061-B 4 Cp composites prepared by casting route melt infiltration, but none seems to have evaluated the impact properties [14,15,21,37,40,42,[45][46][47] a detailed study was undertaken by the authors. Main objectives of such a study was to develop Al-6061 alloy based composites containing B 4 C by liquid metallurgy using 'stir casting' technique or 'vortex' technique and subjecting it to both conventional plastic deformation (CPD-Extrusion) as well as severe plastic deformation (SPD-Twist Extrusion) processes and characterize all these three types of composites for their morphology and various properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of mechanical and thermal loading on boron carbide particles reinforced Al-6061 alloy

Niranjan¹,

Satyanarayana

2015

Materials Science and Engineering: A

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Section: Introductionmentioning

confidence: 99%

Effect of mechanical and thermal loading on boron carbide particles reinforced Al-6061 alloy

Niranjan¹,

Satyanarayana

2015

Materials Science and Engineering: A

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“…Hence B 4 C-Al composites have the potential to combine the high stiffness and hardness of B 4 C with the ductility of Al without defeating the goal of obtaining a stiff low density material. Suggested applications for B 4 C-Al composites include their use as structural neutron absorber, armor plate materials, and as a substrate material for computer hard disks [1][2][3]. Compared to other MMCs the experimental work on B 4 C-Al composites for structural application is scattered and limited.…”

Section: Introductionmentioning

confidence: 99%

Boron carbide-reinforced alumnium 1100 matrix composites: Fabrication and properties

Mohanty

Kandasubramanian

Seshadri

2008

Materials Science and Engineering: A

134

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“…Recent advances in manufacturing methods have provided the ability to produce cermets in large volumes at low cost. This has resulted in cermets being considered as materials for lightweight ballistic armour applications, where the high hardness is required to erode the projectile (Shockey et al, 1990;Walley, 2010), and the improved toughness increases the ability of the armour to sustain multiple impacts (Blumenthal et al, 1994;Compton and Zok, 2013).…”

mentioning

confidence: 99%

Deformation mechanisms of idealised cermets under multi-axial loading

Bele

Goel

Pickering

et al. 2017

Journal of the Mechanics and Physics of Solids

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The response of idealised cermets comprising approximately 60% by volume steel spheres in a Sn/Pb solder matrix is investigated under a range of axisymmetric compressive stress states. Digital volume correlation (DVC) analysis of X-ray microcomputed tomography scans (μ-CT), and the measured macroscopic stress-strain curves of the specimens revealed two deformation mechanisms. At low triaxialities the deformation is granular in nature, with dilation occurring within shear bands. Under higher imposed hydrostatic pressures, the deformation mechanism transitions to a more homogeneous incompressible mode. However, DVC analyses revealed that under all triaxialities there are regions with local dilatory and compaction responses, with the magnitude of dilation and the number of zones wherein dilation occurs decreasing with increasing triaxiality. Two numerical models are presented in order to clarify these mechanisms: (i) a periodic unit cell model comprising nearly rigid spherical particles in a porous metal matrix and (ii) a discrete element model comprising a large random aggregate of spheres connected by non-linear normal and tangential "springs". The periodic unit cell model captured the measured stress-strain response with reasonable accuracy but under-predicted the observed dilation at the lower triaxialities, because the kinematic constraints imposed by the skeleton of rigid particles were not accurately accounted for in this model. By contrast, the discrete element model captured the kinematics and predicted both the overall levels of dilation and the simultaneous presence of both local compaction and dilatory regions with the specimens. However, the levels of dilation in this model are dependent on the assumed contact law between the spheres. Moreover, since the matrix is not explicitly included in the analysis, this model cannot be used to predict the stress-strain responses. These analyses have revealed that the complete constitutive response of cermets depends both on the kinematic constraints imposed by the particle aggregate skeleton, and the constraints imposed by the metal matrix filling the interstitial spaces in that skeleton.

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Response of aluminium-infiltrated boron carbide cermets to shock wave loading

Cited by 57 publications

References 12 publications

Effect of mechanical and thermal loading on boron carbide particles reinforced Al-6061 alloy

Effect of mechanical and thermal loading on boron carbide particles reinforced Al-6061 alloy

Boron carbide-reinforced alumnium 1100 matrix composites: Fabrication and properties

Deformation mechanisms of idealised cermets under multi-axial loading

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