Experimental results on hot deformation and dynamic structural processes of nickel based alloy Inconel 718 are reviewed. The focus is the analysis of dynamic precipitation processes which operate during hot deformation of these materials at elevated temperatures. Hot compression tests were performed on the solution treated precipitation hardenable nickel based superalloy Inconel 718 at 720-1150...

This paper performs a comparative analysis between as-cast and semi-solid CuSn10P1 in state of hot compression deformation. Compared to original billets, the brittle phases intergranular microstructures are reduced, while tangled dislocations occur inside β’-Cu13.7Sn phase, generating slipping bands twins. The precipitation reduction phase smaller difference Young's modulus matrix contribute im...

In the hot compression test friction has a detrimental influence on the flow stress through the process and therefore, correcting the deformation curve for real behavior is very important for both researchers and engineers. In this study, a series of compression tests were simulated using Abaqus software. In this study, it has been employed the Taguchi method to design experiments by the factor...

Suprascapular neuropathy is a pathology caused by injury or compression of the suprascapular nerve. As the nerve runs from the anterior to posterior side of the scapula, the hot point where it is most susceptible to both injury and compression is the suprascapular notch. A literature search reveals several potential predisposing morphological factors in this area. However the most recent report...

In this paper, the deformation and phase transformation of disordered α in (α + γ) two-phase region as-forged Ti-44Al-8Nb-(W, B, Y) alloy were investigated by hot-compression hot-packed rolling. The detailed microstructural evolution demonstrated that deformed microstructure was significantly affected conditions, differences mainly due to use a lower temperature strain rate. Finer grains formed...

Abstract: Isothermal compression tests of BSTMUF601 super-alloy in the temperature range of 950 ̋C–1200 ̋C and at the strain rates of 0.2 s ́1, 5 s ́1, 10 s ́1 were performed on a Gleeble-1500D thermo-mechanical simulator. Based on the hyperbolic sine function, the unified constitutive equations and hot processing maps during the hot deformation process were established. The flow stress predicted by...

Abstract A CuCoBe–diamond composite was used to reinforce a laser textured 410 stainless steel piston ring by hot-pressing. Different hot-pressing parameters were optimize the sintering process of CuCoBe particles ( P = 25 and 50 MPa, T 820 980 °C, t 15 30 min). The results showed an increase in hardness hot-pressed samples (50.5% 48.5% for respectively). Three textures with different track wid...

LLE Review, Volume 141 48 Introduction Shock ignition (SI)1–5 is an advanced concept in inertial confinement fusion (ICF)6 that is very promising and has the potential to provide significantly higher gains than conventional hot-spot ignition.7 SI is a two-step process where the fuel compression and ignition phases are separated by applying a highly shaped laser pulse with a duration of several ...

Methods for reliable evaluation of spinal cord (SC) injury in rats at short periods (2 and 24 h) after lesion were tested to characterize the mechanisms implicated in primary SC damage. We measured the physiological changes occurring after several procedures for producing SC injury, with particular emphasis on sensorimotor functions. Segmental and suprasegmental reflexes were tested in 39 male ...