A new severe plastic deformation (SPD) based technique entitled Accumulative channel-die compression bonding (ACCB) is proposed for the fabrication of high strength multi-layered Al/Cu composites for the first time. In order to primarily demonstrate the capabilities of ACCB in the fabrication of metal matrix composites (MMCs), AA 1050 and pure Cu strips were processed. The primary Al/Cu sandwic...

Since tubes have numerous industrial applications, different attempts are focused on the Severe Plastic Deformation (SPD) processes of tubes. As an illustration, Tube Channel Pressing (TCP) is an attractive process for this purpose since it can be used for processing of different sizes of tubes. However, more attempts are needed to improve the outcomes of TCP. For example, imposing of greater s...

Abstract The effects of severe plastic deformation (SPD) by means high pressure torsion (HPT) on the soft magnetic properties iron-based metallic glass Fe73.9Cu1Nb3Si15.5B6.6 are investigated. With this procedure, it has been possible for first time to consolidate and deform high-strength material with a minimum cracks. X-ray diffraction, differential mechanical scanning analyses, as well optic...

In this study, an integrated approach was used for the preparation of a nanotitanium-based bioactive material. The integrated approach included three methods: severe plastic deformation (SPD), chemical etching and atomic layer deposition (ALD). For the first time, it was experimentally shown that the nature of the etching medium (acidic or basic Piranha solutions) and the etching time have a si...

The effect of the degree severe plastic deformation (SPD) on thermal stability a nanocrystalline CoCrFeNi multi-principal element alloy was studied. SPD method high-pressure torsion (HPT) utilized to achieve microstructure. structural investigated near centers and edges HPT-processed disks deformed for ½, 1, 5 10 turns. For almost all studied samples, two exothermic peaks in temperature ranges ...

Nanostructured metals achieve extraordinary strength but suffer from low thermal stability, both a consequence of a high fraction of interfaces. Overcoming this tradeoff relies on making the interfaces themselves thermally stable. Here we show that the atomic structures of bi-metal interfaces in macroscale nanomaterials suitable for engineering structures can be significantly altered via changi...

Differential Scanning Calorimetry (DSC) is a thermal analysis technique that measures the energy absorbed or released by a sample as a function of temperature or time. Analysis by DSC has wide applications for examining solid-state reactions and solid-liquid reactions in many different materials. Quantitative analyses of the kinetics of reactions may be assessed by reviewing the interrelation b...

This review discusses an area of expertise that is at the intersection three large parts materials science. These are phase transformations, severe plastic deformation (SPD), and high-entropy alloys (HEA). First, SPD makes it possible to determine borders single-phase regions existence a multicomponent solid solution in HEAs. An important feature using these technologies, obtain second-phase na...

the effect of pre-existing nano sized precipitates on the mechanisms and rate of grain refinement has been investigated during the severe plastic deformation. a binary al–0.2sc alloy, containing coherent al3sc particles, of 3.62 nm in diameter has been deformed by accumulative roll bonding up to 10 cycles. the resulting deformed structures were quantitatively analyzed using electron backscatter...