The influence of soaking and cooling rates on the final microstructure a R260Mn pearlitic railway steel subjected to fast heating is investigated. Fast-heating experiments followed or not by at different were performed using quenching dilatometry specimens obtained from rail head. Additional cyclic done investigate evolution during thermal cycling, which relevant for applications. characterized...

The influence of short-time heat treatment on the widely used and commercially available ledeburitic cold-work tool steel 1.2379 (X153CrMoV12; AISI D2) is examined herein. Starting from a soft annealed initial condition, different austenitizing temperatures holding times metastable microstructural states after treatment/hardening investigated. experimental implementation in quenching dilatomete...

A new processing route is proposed to produce graded porous materials by placing particles of Ti6Al4V with different sizes in configurations obtain bilayer samples that can be used as bone implants. The sintering behavior studied dilatometry and the effect layers’ configuration established. To determine pore features, SEM computed microtomography were used. Permeability evaluated numerical simu...

Abstract Refractory ceramics were produced from clays and alumina waste. Specimens shaped by uniaxial pressing, subjected to thermal analysis dilatometry heat-treated in a conventional furnace at 1300 1400oC, applying heating rate of 5oC/min dwell time 2 3 hours the maximum temperature. The samples characterized X-ray diffraction (XRD), scanning electron microscopy (SEM) physicomechanical prope...

Abstract The application of direct quenching after hot rolling plates is being employed in the production ultra-high-strength rolled plates. When heavy gauge are produced, complexity involve achieving high cooling rates plate core increased and formation undesirable soft phases within martensite common. In current paper, both conventional (DQ CQ) processing routes were reproduced by dilatometry...

The tetragonal intermetallic compound EuAl$_{4}$ hosts an exciting variety of low temperature phases. In addition to a charge density wave below 140 K, four ordered magnetic phases are observed 15.4 K. Recently, skyrmion phase was proposed based on Hall effect measurements under $c$-axis field. We present detailed investigation the transitions in Our dilatometry, heat capacity, DC magnetometry,...

The magnetostriction phenomenon, which exists in almost all magnetically ordered materials, is proved to have wide application potential precision machinery, microdisplacement control, robotics, and other high-tech fields. Understanding the microscopic mechanism behind magnetostrictive properties of compounds plays an essential role realizing technological applications helps fundamental underst...

Adsorption-based carbon dioxide capture, utilization, and storage technologies aim to mitigate the accumulation of anthropogenic greenhouse gases that cause climate change. It is assumed porous carbons as adsorbents are able demonstrate effectiveness these over a wide range temperatures pressures. The present study aimed investigate temperature-induced changes in dimensions microporous adsorben...