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Numerical and experimental investigations of weld pool geometry in GTA welding of pure aluminumA. H. Faraji1, A. Bahmani2, M. Goodarzi3, S. H. Seyedein3, M. O. Shabani4(1. Young Researchers Club... model was developed to predict the shape of weld pool in stationary GTA welding of commercial pure aluminium, without considering fluid flow in the weld pool. A Gaussian current density and heat input......
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="ChDivSummary" name="ChDivSummary">According to the selection principle of grain refiners and calculation of planar disregistries, CeO2 and TiB2 particles were selected as the grain refiners of pure nickel. The change of grain size and refining effects of different refiners under the same melting conditions were investigated. The results show that the grain size of pure nickel gradually reduces......
J. Cent. South Univ. (2017) 24: 2556-2564 DOI: https://doi.org/10.1007/s11771-017-3669-4 Theoretical and experimental investigation of gas metal arc weld pool in commercially pure aluminum: Effect... and fluid flow during GMAW of commercially pure aluminum are simulated. Finally, the model is applied to study the effect of welding current on the weld pool geometry and the velocity field. Experimental......
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-heptane (analytic reagent, ＞99%), acetone (analytic reagent, ＞99%), ethanol (analytic reagent, ＞99%), commercially pure nickel sulfate (NiSO4. 6H2O) (＞95%) and deionized water (conductance ＜2.1 μS/cm) were... Preparation of nickel nanoparticles in emulsion ZHANG You-xian(张有贤)1, FU Wen-jie(付文杰)1, AN Xue-qin(安学勤)1, 2 1. College of Resources and Environment, Lanzhou University, Lanzhou 730000, China; 2......
Nickel Electroplating Toru Murakami1,Kazutoshi Komori2,Yasuo Uchikoshiki3 (1.C. Uyemura. & Co.,Ltd. ,Osaka, Japan;2.Uyemura(Shanghai;3.Uyemura-Solar(Shenzhen) 摘要:Nickel electroplating has been... use. At first the basics of nickel electroplating, for example, purpose, use, merit & demerit, nickel plating solution, current efficiency,limiting current density, additional agents and their behaviors......
evolution of pure nickel treated by deep rolling(DR) technique with different indent depths was investigated by means of optical microscopy and transmission electron microscopy.The surface roughness...Microstructural Evolution, Mechanical Properties and Thermal Stability of Gradient Structured Pure NickelXiao Li,Bo Guan,Yun-Fei Jia,Yun-Chang Xin,Cheng-Cheng Zhang,Xian-Cheng Zhang,Shan-Tung TuKey......
concentration in bath: 20 g/L) The embedding of TiO2 nano-particles in the Ni matrix provokes changes in structure of the pure nickel coatings (Fig.1(b)). In detail, the region of [100] oriented deposits... Nickel and nickel-phosphorous matrix composite electrocoatings Nicolas SPYRELLIS, Evangelia A. PAVLATOU, Styliani SPANOU, Alexandros ZOIKIS-KARATHANASIS General Chemistry Laboratory......
hydroxide as compared with the pure nickel hydroxide. The charge/discharge tests show that MCNTs addition can improve the specific discharge capacity and increase the discharge voltage of the nickel... with distilled water, and dried at 60 ℃ for 24 h. For comparison, pure nickel hydroxide was also synthesized by the same chemical coprecipitation process without the addition of MCNTs. The same......
