Zobrazeno 1 - 10
of 223
pro vyhledávání: '"Menghuai Wu"'
Autor:
Haijie Zhang, Yunxing Zhao, Wei Xiong, Dexin Ma, Andreas Ludwig, Abdellah Kharicha, Menghuai Wu
Publikováno v:
Communications Materials, Vol 5, Iss 1, Pp 1-12 (2024)
Abstract Segregation channels with misoriented spurious grains, known as freckles, are an unacceptable casting defect in superalloy turbine blades. A digital-twin method to predict segregation channels was proposed in our previous studies; however, t
Externí odkaz:
https://doaj.org/article/29661c30475144e08aa870685985a311
Autor:
Ibrahim Sari, Menghuai Wu, Mahmoud Ahmadein, Sabbah Ataya, Nashmi Alrasheedi, Abdellah Kharicha
Publikováno v:
Materials, Vol 17, Iss 5, p 1205 (2024)
Due to the high computational costs of the Eulerian multiphase model, which solves the conservation equations for each considered phase, a two-phase mixture model is proposed to reduce these costs in the current study. Only one single equation for ea
Externí odkaz:
https://doaj.org/article/bb197716edfc4ca9b11586c0887d501a
Autor:
Mohamad Al-Nasser, Hadi Barati, Christian Redl, Anton Ishmurzin, Nikolaus Voller, Gernot Hackl, Manuel Leuchtenmüller, Menghuai Wu, Abdellah Kharicha
Publikováno v:
Results in Engineering, Vol 19, Iss , Pp 101312- (2023)
The paper reports on the behaviour and dynamics of direct current electric arc in an industrial electric arc furnace. Electric arcs are intense energy sources involved in many industrial processes. The behaviour of electric arc is simulated in a 2D a
Externí odkaz:
https://doaj.org/article/b66c1a6ed0904c6c9727e75a617f7179
Autor:
Ebrahim Karimi-Sibaki, Mario Peyha, Alexander Vakhrushev, Menghuai Wu, Andreas Ludwig, Jan Bohacek, Bernhard Preiss, Abdellah Kharicha
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)
Abstract In the present study, we investigate arc plasma expansion in an industrial vacuum arc remelting (VAR) process using experimental and numerical tools. Stainless steel is the alloy of interest for the electrode (cathode) and ingot (anode). Dur
Externí odkaz:
https://doaj.org/article/3d70c567dc2045368ed724306e4bf7a6
Autor:
Ibrahim Sari, Mahmoud Ahmadein, Sabbah Ataya, Lakhdar Hachani, Kader Zaidat, Nashmi Alrasheedi, Menghuai Wu, Abdellah Kharicha
Publikováno v:
Materials, Vol 17, Iss 4, p 865 (2024)
Secondary dendrite arm spacing (SDAS) is one of the most important factors affecting macrosegregation and mechanical properties in solidification processes. Predicting SDAS is one of the major parameters in foundry technology. In order to predict the
Externí odkaz:
https://doaj.org/article/34474af6e7de4288b46edcb602593746
Autor:
Ibrahim Sari, Nashmi Alrasheedi, Mahmoud Ahmadein, Joy Djuansjah, Lakhdar Hachani, Kader Zaidat, Menghuai Wu, Abdellah Kharicha
Publikováno v:
Materials, Vol 17, Iss 4, p 912 (2024)
Research efforts have been dedicated to predicting microstructural evolution during solidification processes. The main secondary arm spacing controls the mushy zone’s permeability. The aim of the current work was to build a simple sub-grid model th
Externí odkaz:
https://doaj.org/article/b805218313144ecfb6f798633b341ed7
Autor:
Alexander Vakhrushev, Ebrahim Karimi-Sibaki, Jan Bohacek, Menghuai Wu, Andreas Ludwig, Yong Tang, Gernot Hackl, Gerald Nitzl, Josef Watzinger, Abdellah Kharicha
Publikováno v:
Metals, Vol 13, Iss 3, p 444 (2023)
Complex multi-phase phenomena, including turbulent flow, solidification, and magnetohydrodynamics (MHD) forces, occur during the continuous casting (CC) under the applied electromagnetic brake (EMBr). The results of the small-scale experiment of the
Externí odkaz:
https://doaj.org/article/e0089f803ed1438e8fb28863097d4257
Autor:
Mohamad Al-Nasser, Abdellah Kharicha, Hadi Barati, Christoph Pichler, Gernot Hackl, Markus Gruber, Anton Ishmurzin, Christian Redl, Menghuai Wu, Andreas Ludwig
Publikováno v:
Metals, Vol 11, Iss 9, p 1482 (2021)
A 2D axisymmetric two-phase model was developed to study the effect of an arc impingement on the liquid metal inside an electric arc furnace. In addition to the arc flow dynamics, the model covered the heat transfer and magneto hydrodynamics of the a
Externí odkaz:
https://doaj.org/article/54d19499613b47c9b26698b8e634dec1
Autor:
Alexander Vakhrushev, Abdellah Kharicha, Menghuai Wu, Andreas Ludwig, Yong Tang, Gernot Hackl, Gerald Nitzl, Josef Watzinger, Jan Bohacek
Publikováno v:
Metals, Vol 11, Iss 9, p 1375 (2021)
Continuous casting (CC) is one of the most important processes of steel production; it features a high production rate and close to the net shape. The quality improvement of final CC products is an important goal of scientific research. One of the de
Externí odkaz:
https://doaj.org/article/805359b4f5084a3e870530acf1e09165
Autor:
Jérémy Chaulet, Abdellah Kharicha, Sylvain Charmond, Bernard Dussoubs, Stéphane Hans, Menghuai Wu, Andreas Ludwig, Alain Jardy
Publikováno v:
Metals, Vol 10, Iss 4, p 490 (2020)
Electroslag remelting is a process extensively used to produce metallic ingots with high quality standards. During the remelting operation, liquid metal droplets fall from the electrode through the liquid slag before entering the liquid pool of the s
Externí odkaz:
https://doaj.org/article/8bc68b6a9aef4d4bb81e015bc7e44230