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Fabrication of pure copper rods containing continuous columnar crystals by continuous unidirectional solidification technologyHong zhang;Jianxin Xie;Zidong Wang Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China摘 要:<正> Pure copper rods containing continuous columnar crystals were......
Shear deformation and grain refinement in pure Al by asymmetric rolling ZUO Fang-qing(左方青)1, JIANG Jian-hua(蒋建华)1, SHAN Ai-dang(单爱党)1, FANG Jian-min(方建敏)1, ZHANG Xing-yao(张杏耀)2 1. School... were used to show the shear deformation during asymmetric rolling with pure aluminium as a model material. Effects of reduction ratio and mismatch ratio on the shear deformation were studied......
. The experimental results show that pure copper oxalate hydrate is prepared below a critical pH value of 6.0, whereas the powder turns to be a complicated copper salt combined with NH3 over the pH value.... But from Table 1, the molar ratios of Cu2+ to C2O42- are about 1?1, which suggests they are complicated copper oxalate instead of pure CuC2O4?H2O. Fig.1 XRD patterns of powders prepared at various pH......
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Deformation efficiency, homogeneity, and electrical resistivity of pure copper processed by constrained groove pressingZong-Shen Wang,Yan-Jin Guan,Ping LiangKey Laboratory for Liquid-Solid Structural... method suitable for producing ultra-fine grained sheet metals. In this work, the processing efficiency for a muti-pass CGP of pure copper was investigated. With a relatively small groove width of 2 mm......
Effects of lanthanum addition on microstructure and mechanical properties of as-cast pure copper陈岩1,程明1,宋鸿武1,张士宏1,刘劲松21. Institute of Metal Research, Chinese Academy of Sciences2. School of Materials... method. The effects of La on microstructure and mechanical properties of as-cast pure copper were investigated using optical microscopy(OM), scanning electronic microscopy(SEM), transmission electron......
Effects of lanthanum addition on microstructure and mechanical properties of as-cast pure copper陈岩1,程明1,宋鸿武1,张士宏1,刘劲松21. Institute of Metal Research, Chinese Academy of Sciences2. School of Materials... method. The effects of La on microstructure and mechanical properties of as-cast pure copper were investigated using optical microscopy(OM), scanning electronic microscopy(SEM), transmission electron......
, WINNING M, HELLMIG R J. Thermal stability of ECAP processed pure copper [J]. Mater Sci Eng A, 2007, 460: 204-213. [7] EDDAHBI M, del VALLE J A, PEREZ-PRADO M T, RUANO O A. Ultrafine grained steels... Corrosion behavior of ultra-fine grained industrial pure Al fabricated by ECAP SONG Dan(宋 丹), MA Ai-bin(马爱斌), JIANG Jing-hua(江静华), LIN Pin-hua(林萍华), YANG Dong-hui(杨东辉) College......
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running and then smelting, but the total recovery of copper is about 35% during the mill running process. As a result, further research is still needed for effective exploitation of this kind of ore...J. Cent. South Univ. Technol. (2009) 16: 0936-0941 DOI: 10.1007/s11771-009-0156-6 Technological conditions and kinetics of leaching copper from complex copper oxide ore SUN Xi-liang(孙锡良)1, 2......
