Results 71 to 80 of about 11,356 (215)

Investigation of Corrosion Behavior of Carbide Phase Strengthened Nickel‐Based Alloy in Molten Fluoride Salt

Materials and Corrosion, EarlyView.
Molten fluoride salt‐cooled reactors are being considered as the next generation nuclear reactors because they provide a number of benefits over current light water reactors, including enhanced safety. This work aims to develop an understanding of corrosion of structural alloys in molten fluoride salts for successful implementation of these reactors ...
Ryan Gordon, Kasturi Sasidhar, Ryan Thier, Rishi Pillai, Evan Willing, Adrien Couet, Jay Tiley, Steve Zinkle, Kumar Sridharan   +8 more
wiley   +1 more source

Designing High‐Entropy Alloys With Low Stacking Fault Energy Through Interpretable Machine Learning

Materials Genome Engineering Advances, EarlyView.
In this study, we developed an interpretable machine learning (ML) ensemble framework and, by integrating the VEC criterion with the proposed machine learning scoring parameter in the alloy composition screening process, successfully designed multiple CoCrFeNiMn‐based HEAs with TWIP/TRIP effects and without the BCC phase.
Shuai Nie, Yixuan He, Haoxiang Liu, Xudong Liu, Haifeng Wang, Ziqing He, Menghao Yang   +6 more
wiley   +1 more source

Local Activity and Selectivity Hotspots in Cu‐Pt Model Thin‐Film Electrocatalysts for Oxygen Reduction

Small Methods, EarlyView.
A Cu‐Pt model thin film catalyst is investigated via electrochemical scanning tunneling microscopy. This technique enables in‐operando active site detection on a nanometer scale. It is shown that the precise location of the active sites changes depending on the selectivity of the oxygen reduction reaction.
Lewin V. Deville, Rico Zehl, Luca Saluta, Qingdian Liao, Peter M. Schneider, Tobias Piotrowiak, Benedikt Kohnen, Ellen Suhr, Alfred Ludwig, Aliaksandr S. Bandarenka   +9 more
wiley   +1 more source

Using Thermodynamics and Microstructure to Mitigate Overfitting in Pellet Reduction Models

steel research international, EarlyView.
A in time and space discretized, thermodynamically sound model for direct reduction of iron oxide pellets is described. The number of fitting parameters is drastically reduced compared to existing models. Nevertheless, fitting kinetic parameters based on conversion degree data alone leads to overfitting, which can be mitigated by correlating the ...
Ömer K. Büyükuslu, Fabrice Yang, Dierk Raabe, Moritz to Baben, Anna L. Ravensburg   +4 more
wiley   +1 more source

Thermodynamic Modeling of Sn–C and Fe–Sn–C Systems for the Tramp Elements Control in Steel Production

steel research international, EarlyView.
A CALculation of PHAse Diagrams thermodynamic modeling for Fe–Sn–C system is carried out. The model and the developed database can be used to calculate phase diagrams and thermodynamic properties of this system over wide temperature/composition range, and a part of a larger thermodynamic database for steel and alloy system, and effectively used to ...
Won‐Bum Park, Michael Bernhard, Youn‐Bae Kang   +2 more
wiley   +1 more source

Including state-of-the-art physical understanding of thermal vacancies in Calphad models

Scientific Reports, 2022
A physically sound thermochemical model accounting for explicit thermal vacancies in elements and alloys is presented. The model transfers the latest theoretical understanding of vacancy formation into the Calphad formalism where it can extend currently ...
A. Obaied, I. Roslyakova, M. To Baben
doaj   +1 more source

Influence of Laser Powder‐Based Directed Energy Deposition and Heat Treatment on the Thermal Conductivity of Cold‐Work Tool Steel X65MoCrWV3‐2

steel research international, EarlyView.
The studied X65MoCrWV3‐2 press hardening tool steel, produced via laser‐based direct energy deposition DED‐LB/M, exhibits a 15‐20% lower thermal conductivity than its conventionally produced equivalent when heat‐treated to operational hardness. The microstructural evolution during the employed direct tempering leads to anisotropic thermal transport, as
Julia Hahn, Christoph Escher, Sebastian Weber, Santiago Benito   +3 more
wiley   +1 more source

In Situ Investigation of Microstructure Evolution and Stress Generation During Low‐Pressure Carburizing and Quenching by Means of Synchrotron X‐Ray Diffraction

steel research international, EarlyView.
This study uses in situ synchrotron X‐ray diffraction at the German Electron Synchrotron to analyze low‐pressure carburizing (LPC) in steels. The findings reveal surface carbon saturation and carbide formation kinetics, and phase‐specific stress development during quenching. The results show carbide kinetics depend on steel grade and size, while stress
Ogün Baris Tapar, Michael Georg Zürn, Jens Gibmeier, Antonio Carlos de Figueiredo Silveira, Matthias Steinbacher, Norbert Schell, Jérémy Epp   +6 more
wiley   +1 more source

Egyensúlyi fázisdiagrammok számítása ESTPHAD módszerrel = Calculation of Equilibrium Phase Diagrams by ESTPHAD method [PDF]

, 2008
Az egyensúlyi fázisdiagramok igen jelentős része csak grafikusan ismert, vagy - egy csekély hányaduk -komplikált, igen hosszú CPU időt lekötő eljárással számítható ki. Ez a felismerés vezetett az ESTPHAD módszer és szoftver kidolgozásához.
Barkóczky, Péter, Demeter, Zsolt, Farkas, János, Jaroslav, Sytchev, Kaptay, György, Mende, Tamás, Roósz, András, Sahba Yaghmaee, Maziar   +7 more
core  

Microstructure Evolution in Directionally Solidified Fe–C–Mn–(Si) Peritectic Steels

steel research international, EarlyView.
This study investigates how growth velocity and silicon additions affect dendritic morphology, primary arm spacing, and mushy‐zone evolution in directionally solidified quaternary peritectic steels. Silicon substantially broadens the freezing range and lengthens the mushy zone, increasing susceptibility to interdendritic cracking.
André Phillion, Olajide Akintayo, Muhammad Nabeel, Angshuman Podder, Guang Wang   +4 more
wiley   +1 more source