Metallurgical coke with high strength and low reactivity is used in the ironmaking blast furnace. Replacement of some coking coal bio-coal was shown to result lower higher produced due introduction reactive carbon ash components catalyzing Boudouard reaction, but also lowering blend fluidity, which influences negatively. The current study aims investigate possibility counteract negative impact ...

Abstract High-strength Al–Zn–Mg–Cu alloys such as AA7075 rely on precipitation to obtain their properties, and the evolution of these precipitates can be strongly influenced by deformation. In this study, effect warm stretching in supersaturated was investigated. A dilatometer used enable rapid quenching directly from solution treatment temperature temperature. The monitored using small-angle X...

Abstract This paper presents experimental results and finite element analysis of hot upsetting titanium alloys Ti64 Ti407 using a dilatometer in loading mode. All samples showed barrelling, as consequence an inhomogeneous temperature distribution friction. The FE is full thermomechanical model the test calibrated multiple thermocouples. At each nominal strain rate, true flow stress–strain respo...

Abstract Commercial high-strength filler metals for wire arc additive manufacturing (WAAM) are already available. However, widespread industrial use is currently limited due to a lack of quantitative knowledge and guidelines regarding welding stresses component safety during manufacture operation WAAM structures. In joint research project, the process- material-related as well design influences...

Nb–Ti microalloyed low carbon high strength alloy (HSLA) steels are used to fabricate components, particularly for the automobile and piping applications requiring optimum combination of mechanical properties along with good weldability. These depend on transformed ferrite microstructure grain size obtained after cooling from hot rolling temperatures which always well above austenitizing temper...

The hot stamping of tailored properties is widely established in the automotive industry. However, unlike conventional press hardening, this technique designed to generate varying mechanical by controlling cooling rate locally. Current material models cannot accurately represent locally very different thermomechanical paths. This research aims address problem developing a new phase transformati...

this paper presents a description of the equipment, testing procedure, and methodology to obtain ground mechanical parameters. the p-y curves for laterally loaded piles are developed. methods for the development of p-y curves from pressure meter and dilatometer (dmt) test are described. p-y curves are used in the analysis to represent lateral soil-pile interaction. the pressure meter offers an ...

Alumina (Al2O3) is an advanced ceramic material developed for different applications as refractories, precision tools, pacemaker, etc. Solid state sintering of alumina or matrix composites (CMCs) compacts starts from powders. Once method to produce high quality aluminum oxide powders the sol-gel technique. begins pseudo-crystallized hydroxide gel which produced under moderate reaction condition...

Abstract A computational 3D model that accounts for both nucleation and interface migration is a very useful tool to monitor grasp the complexity of microstructure formation in low-alloyed steels. In present study we have developed mixed-mode multigrain austenite-ferrite austenite-ferrite-austenite capable following diffusional phase transformations under arbitrary thermal routes. This new inco...

The thermal behavior of green clay samples from the Arumetsa and Füzérradvány deposits (Hungary) influence two new types Estonian oil shale (OS) ashes cement bypass dust (clinker dust) additives on it were objectives this study. Thermal thermo-dilatometric analysis methods applied using a Setaram Setsys 1750 thermoanalyzer coupled with Pfeiffer Omnistar spectrometer CS Evolution dilatometer. ki...