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Online since: September 2008
Authors: R. Orosz, Hans-Jürgen Christ, Daniel Monceau, Ulrich Krupp
., by Calvarin-Almiri et al. [4] for chromiaforming Ni-20Cr foils.
This was, e.g., shown by Dryepondt et al. [5] for a single-crystalline Ni-base superalloy.
Also, the depth of the dissolution of the γ´ phase (Ni3Al) due to oxidation-induced Al consumption was more or less the same for all specimens.
El Tahhan, G.
Al-Badairy, G.J.
Online since: July 2022
Authors: Benjamin Klusemann, Ruslan Sikhamov, Volker Ventzke, Falk Dorn, Nikolai Kashaev, Noomane Ben Khalifa
Odenberger et al. [4] used numerical and experimental approaches to study the forming behavior of Ti-6Al-4V sheets at 700°C.
Hao et al. [7] investigated the tensile deformation behavior of near-α alloy Ti-6Al-2Zr-1Mo-1V at various temperatures.
Technol. 170 (2005) 181-186 [4] E.L.
Wang et al., Tensile deformation behavior of a near- α titanium alloy Ti-6Al-2Zr-1Mo-1V under a wide temperature range, J.
Mareau et al., On the nucleation of deformation twins at the early stage of plasticity, Acta Mater. 196 (2020) 733-746.
Online since: June 2013
Authors: Klauss Küsters, Christian Hopmann, Roberto Spina, Marcel Spekowius
Guo et al. (1999,[4]) investigated the crystallization process using isotactic PP and non-isothermal conditions during polymer processing.
Galera et al. (2009,[3]) recognized the importance of incorporating the crystallization phenomena into simulation software of polymer processing.
Zhao et al. (2009,[11]) investigated the effects of the nucleating agents on isotactic PP crystallization.
[3] Galera V.V., Marinelli A.L., Carvalho, B.de M., Determination of non-isothermal crystallization rate constant for pseudo-experimental calorimetric data.
[12] Zinet M., El Otmani R., Boutaous M., Chantrenne P., Numerical modeling of non-isothermal polymer crystallization kinetics: Flow and thermal effects.
Online since: June 2015
Authors: I. Malico, P.J.S.A. Ferreira de Sousa, C. Ferrão
However, since this weak inertial transitional regime occurs over a small range of Reynolds numbers, Fand et al. [8] suggested that it could be neglected and that an artificial transitional Reynolds number could be considered.
For example, MacDonald et al. [13] evaluated the Ergun model [11] through the comparison of experimental results obtained for several types of unconsolidated and consolidated porous media.
A detailed description of the implementation of the numerical method used in this work and its verification can be found in the paper of Ferreira de Sousa et al. [19].
A similar divergence between the numerical results and the Ergun Equation, Eq. 2, was observed by Jeong et al. [20].
El-Sayed, K.
Online since: February 2024
Authors: Madhanagopal Manoharan, S. Dinesh Kumar, J. Ekanthamoorthy, Sudalai Perumal, Arivendhan Ajithram
Anadakumar et al., (2017) mixed copper powder with kerosene servotherm at weight of 10 gm. for a current value 10 amps produces better material removal rate, less tool wear rate and reduced overcut in the diameter [3].
Vijayanand et al. (2016) developed Taguchi L9 orthogonal array to predict the tool wear rate and material removal rate for hole drilling of Monel metal using Electrical Discharge Machining.
Hadi et al. (2022) found that copper-graphite composite electrode produces lower surface roughness in the monel 400 using EDM process by performing set of experiments with Taguchi method [5].
Padmini et al. (2015) studied the influence of radial overcut over the input parameters [8] such as discharge current, pulse on time, pulse off time, geometrical shape tools using Taguchi experimental array design.
El-Tamimi, M.K.
Online since: April 2012
Authors: Ming Chen, Qing Long An, Xiao Jiang Cai, Sheng Qin
Liao et al. [5] conducted slot milling and side milling experiments, and considering cutting force, tool wear and chips results concluded that 55~135m/min was appropriate for side milling.
The effects of cutting tool geometry parameters on surface integrity are emphasized in the works of Arunachalam et al. [6], Pawade et al. [7] and Sharman et al. [8].
Pusavec et al. [9] proposed that cryogenic machining improved surface integrity by comparing several cooling and lubrication conditions.
Experiments The workpiece material used in experiments was Inconel 718, with a composition of 53.8% Ni, 18.1% Cr, 17.8% Fe, 5.5% Nb, 2.9% Mo, 1% Ti, 0.55% Al, 0.25% C, 0.04% Si, 0.06% Mn.
Vol. 86 (1998), p. 1 [2] I.A Choudhury and M.A El-Baradie: J.
Online since: January 2014
Authors: Yury A. Krutyakov, Aleksey I. Klimov, Albert N. Denisov, Olga V. Zakharova, Alexander A. Gusev, Olga A. Akimova, Denis V. Kuznetsov, Anna Godymchuk
El-Temsah, E.J.
Gusev, et al., Carbon nanotubes enter the cells and stimulate sprouts of esparcet Onobrychis arenaria (Kit.).
Huy, et al., Photochemical Synthesis of Highly Bactericidal Silver Nanoparticles.
Tam, et al., Synthesis of oleic acid-stabilized silver nanoparticles and analysis of their antibacterial activity.
Huy, et al., Green synthesis of finely-dispersed highly bactericidal silver nanoparticles via modified Tollens technique.
Online since: August 2014
Authors: Hsing Ping Kuo, Kang Li Wu
The most famous measurement of service quality in the service industry that can be used across various service domains is that established by Parasuraman et al. [2].
Subsequently, Parasuraman et al.[1] derived the widely used, five-dimensional SERVQUAL instrument using exploratory factor analysis.
Parasuraman, et al. [1] considered consumers as the only ones who can judge service quality, and the service quality generally is assessed based on the contrast between their perceptions and their expectations.
Pierre et al.[3] used the PZB theory to create a research model for service performance.
Roger et al. [4] also applied SERVQUAL to study service quality.
Online since: June 2021
Authors: Ke Tong, Shen Cong, Qing Liu, Bo Zhu, Xu Ying Kang
[3] Li Helin, Guo Shengwu, Feng Yaorong, et al.
El-boujdaini.
[12] Zhang Peng, Zhao Guoxian, Bi Zongyue, et al.
[13] Zhou Qi, Ji Genshun, Zhang Jianbin, et al.
[15] Liu Ge, Huang Bensheng, Peng Cheng, et al.
Online since: June 2014
Authors: Joe J. Liou, Tahany I. El-Wardany
El-Wardany United Technologies Research Center 411 Silver Lane East Hartford, CT 06108, USA *E-mail: lioujj@utrc.utc.com Keywords: Deep rolling, friction, residual stress, finite element method Abstract.
Yen et al. [5] conducted 2D plain-strain and 3D finite element (FE) analyses of roller burnishing using a spherical rigid roller loaded on the hard-turned elastic-plastic material made of AISI 52100 steel to study the deformation on surface lays and residual stress in the near-surface material.
Sartkulvanich et al. [6] further improved the 2D an 3D FE analyses and concluded that (i) tensile residual stresses predicted from the simulation are due to the plane strain assumption used in the 2D model since the tool is presented as a cylindrical object rather than a spherical object.
Other similar numerical simulations in the this subject can be found in Guagliano and Vergani [8], Choi and Pan [3, 9], Majzoobi et al. [10], Fu et al. [11], Sayahi et al. [12], and Klocke et al. [13].
[15] Li, L. and He, N., “A FEA Study on Mechanisms of Saw-Tooth Chip Deformation in High Speed Cutting of Ti-6-Al-4V Alloy,” Proceedings of the Fifth International Conference on High Speed Machining, Metz, France, 2006, pp. 759-767
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