The hot compression tests were carried on X45CrNiW189 valve steel (X45) in the temperature range of 1000– 1200 °C and the strain rate range of 0.004 – 0.5 s-1 in order to study the high temperature softening behavior of this steel. For the exact prediction of flow stress, the effective stress-effective strain curves were obtained from experiments under various conditions. On the basis of experi...

A new method for the simulation of evolving multi-domains problems has been introduced in previous works (RealIMotion), Florez et al. (2020) and further developed parallel context isotropic Grain Growth (GG) with no consideration effects Stored Energy (SE) due to dislocations. The methodology consists a front-tracking approach where one originality is that not only interfaces between grains are...

We have designed and tested several synthesis routes targeting a highly fluorinated disordered rocksalt (DRX) cathode, Li1.2Mn0.4Ti0.4O1.6F0.4, with each route rationalized by thermochemical analysis. Precursor combinations were screened to raise the F chemical potential avoid formation of LiF, which inhibits fluorination targeted DRX phase. MnF2 was used as reactive source F, Li6MnO4, LiMnO2, ...

(Received: May 4, 2010; June 10, 2010) Abstract: Textile cardiovascular prostheses are woven or knitted structures made generally from biocompatible polyester fibres. After production, they have to undergo special treatments before packaging such as compaction. This treatment is necessary to reduce porosity especially for knitted structures, but it can modify poly(ethylene terephthalate) (PET) ...

NARL has active array radar which has been designed, developed and tested at 1280 MHz. This system comprises of planar microstrip patch antenna array fed by solid-state transreceiver (TR) modules, two-dimensional (2D) passive beam forming network (BFN) and direct IF digital receiver (DRx). Errors are the common factors that affect the data. The common errors are Random errors and Systemic error...

NMR investigations All H NMR spectra were recorded at room temperature on Bruker DRX-400 and 500MHz Spectrometers. Some of the spectra were also recorded at 305K. H NMR chemical shifts (ppm) are reported as related to the residual H signals in the deuterated solvents (e.g. methanol-d4, 3.31 ppm; chloroform-d, 7.27ppm) NMR experiments (one single scan) were acquired using 45 rf pulses to maximiz...

−− The main objective of this work is to study the feasibility of new materials to be used as support for boron-nickel catalysts. Potential support materials such as: silica gel, alumina, hydrothermal modified Perlites and zeolite 4A, were characterized by BET, TPR and DRX. After the addition of Ni and B, their catalytic activity evaluated with the nitrobenzene hydrogenation model reaction. The...

The study of grain and defect structure evolution in materials subjected to thermomechanical processing is still an urgent problem because the state a substantially determines physical mechanical macro properties polycrystals polycrystalline products. Significant changes are associated with process dynamic recrystallization (DRX). To investigate DRX, extended statistical model inelastic deforma...

Selective Laser Melted (SLM) Inconel718 (IN718) superalloy was linear friction welded (LFWed) to forged AD730™ Nickel-based superalloy. Successful joints free of micro-porosity, micro-cracking, and oxides were obtained. Microstructure variations across the weld line developed during LFW examined using different techniques, including laser confocal microscopy, scanning electron energy dispersive...

Purpose The purpose of this research is to develop a generic framework digital twin (DT)-based automated construction progress monitoring through reality capture extended (RC-to-XR). Design/methodology/approach IDEF0 data modeling method has been designed establish an integration capturing technologies by using BIM, DTs and XR for monitoring. Structural equation (SEM) used test the proposed hyp...