Results 51 to 60 of about 1,273,058 (405)

Automated Workflow for Phase‐Field Simulations: Unveiling the Impact of Heat‐Treatment Parameters on Bainitic Microstructure in Steel

Advanced Engineering Materials, EarlyView.
In this study, OpenPhase software is used to simulate low‐carbon bainitic steels. The lower holding temperature sample exhibits smaller and finer grains. Grain thickness measurements of bainitic ferrite from simulations align with the experimental observations at high temperature. Bainitic steels are extensively utilized across various sectors, such as
Dhanunjaya K. Nerella, Muhammad Adil Ali, Hesham Salama, Oguz Gulbay, Marc Ackermann, Oleg Shchyglo, Ulrich Krupp, Ingo Steinbach   +7 more
wiley   +1 more source

Study on multi-spectral inversion of temperature and soot concentration in flames

Zhongguo Jianchuan Yanjiu, 2019
[Objectives]In order to accurately understand the temperature inside the flame and the distribution of soot concentration,[Methods]the distribution of the two-dimensional temperature and the soot volume fraction inverted from the spectral intensity image
Zhang Qi, Si Mengting, Wang Dongxu, Wang Anzhen, Li Can, Wang Zhen, Luo Zixue, Lou Chun, Cheng Qiang   +8 more
doaj   +1 more source

Combustion [PDF]

, 2016
Match, wood, flame. Pyrocultures, settler colonial pyrophobia. Internal combustion. Wildfire. Petrocapitalist immolation. This short photo essay reflects on fire as simultaneously a sensuous phenomenon of everyday life and an entity that, because of both
Sandilands, Catriona
core   +1 more source

Partitioning and Coarsening Dynamics of Precipitate‐Strengthened Cr‐Si Alloys: The Role of Ge, Pt, and Mo

Advanced Engineering Materials, EarlyView.
The microstructure of Cr‐rich Cr‐Si‐alloys is maintained by alloying with Ge, Pt, and Mo. The effects of these elements on A15‐phase fraction, partitioning, microstructural stability, grain size, and hardness are combinable. Molybdenum is found to be the most promising alloying element for microstructural stability during high‐temperature exposure.
Anke Silvia Ulrich, Petra Pfizenmaier, Michael Kerbstadt, Lucas Pelchen, Ali Solimani, Uwe Glatzel, Mathias Christian Galetz   +6 more
wiley   +1 more source

A study on the relationship between vehicle operating conditions and NOx emission characteristics [PDF]

E3S Web of Conferences
To address the challenges faced by vehicles during actual operation when passing through traffic lights or intersections, where rapid changes in operating conditions can lead to a decrease in SCR efficiency and an increase in NOx emissions, this study ...
Xia Ran, Wang Yu, Feng Yifang, Chen Tao, Qin Jing   +4 more
doaj   +1 more source

Revealing the γ′ and γ″ Phase Fractions of Additively Manufactured and Differently Heat‐Treated Nickel‐Base Superalloy IN718 by Atom Probe Tomography and Their Impact on Mechanical Properties

Advanced Engineering Materials, EarlyView.
Additive manufacturing is a promising route for the production of Ni‐base superalloys for turbine applications, such as Inconel 718. Nonetheless, it induces various changes in the microstructure and performance of these materials. One such change is the incidence of the δ‐Ni3Nb phase, whose impact on microstructure, aging precipitate fractions, and ...
Guilherme Maziero Volpato, Jan Vollhüter, Benedikt Diepold, Martin Sebastian Meier, Martin Pröbstle, Mathias Göken, Thomas Niendorf, Peter Felfer, Steffen Neumeier   +8 more
wiley   +1 more source

Effects of electrode configurations on the combustion characteristics of premixed methane-air flames

Journal of Thermal Science and Technology, 2015
The present paper reported the effects of electric fields produced by the mesh, ring and needle electrodes on outwardly propagating premixed flames in a constant chamber.
Jianfeng FANG, Xiaomin WU, Hao DUAN, Chao LI, Zhongquan GAO   +4 more
doaj   +1 more source

Development of a Novel Processing Route for Dispersoid/Precipitation‐Strengthened High Conductive Copper Alloys by Using Metalized Nanoceramics in Additive Manufacturing

Advanced Engineering Materials, EarlyView.
This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel, Abdelrahman Elsayed, Lukas Mielewczyk, Katja Eichmann, Julia Grothe, Ulrich Krupp, Avinash Hariharan, Katrin Jahns   +7 more
wiley   +1 more source

Holistic analysis of a gliding arc discharge using 3D tomography and single-shot fluorescence lifetime imaging

Communications Engineering
Gliding arc plasmas, a versatile form of non-thermal plasma discharges, hold great promise for sustainable chemical conversion in electrified industrial applications.
Sebastian Nilsson, David Sanned, Adrian Roth, Jinguo Sun, Edouard Berrocal, Mattias Richter, Andreas Ehn   +6 more
doaj   +1 more source

Validation of a RANS 3D-CFD Gaseous Emission Model with Space-, Species-, and Cycle-Resolved Measurements from an SI DI Engine

Energies, 2020
Reynolds-averaged Navier–Stokes (RANS) three-dimensional (3D) computational fluid dynamics (CFD) simulations of gaseous emissions from combustion engines are very demanding due to the complex geometry, the emissions formation mechanisms, and the ...
Stefania Esposito, Max Mally, Liming Cai, Heinz Pitsch, Stefan Pischinger   +4 more
doaj   +1 more source