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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... test and surface analyses (OM and SEM). The microstructures including grain size, grain boundaries and dislocations were also observed by TEM. The results show that the UFG industrial pure Al has more......
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____________________________________________________________________ Abstract: The equal channel angular pressing(ECAP) experiments were carried out with industrial pure aluminum and an in-house mould..., which has an intersecting channel angle of 120?, and its strain imposed in each pass is approximately equal to 0.667[3]. The sample material for this experiment was industrial pure aluminum......
calculations on copper[7]. Thus, 9R phase of copper is frequently observed at tilt sub-boundaries in annealed polycrystalline Cu reported by ERNST et al[7-8], in pure Cu in form of precipitates in Fe-Cu and Fe... 9R structure in drawn industrial single crystal copper wires CHEN Jian(陈 建)1, 2, YAN Wen(严 文)1, 2, FAN Xin-hui(范新会)2 1. School of Materials Science and Chemical Engineering, Xi’an Technological......
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......
Corrosion behavior of pure aluminum in FeCl3 solution QU Jun-e(屈钧娥)1, GUO Xing-peng(郭兴蓬)2, WANG Hai-ren(王海人)1, HUANG Jin-ying(黄金营)3 1. School of Chemistry and Material Science, Hubei... and Chemistry, Chinese Academy of Sciences, Beijing 100101, China Received 5 January 2006; accepted 22 March 2006 Abstract: The corrosion behavior of pure aluminum in FeCl3 solution was investigated mainly......
J. Cent. South Univ. (2016) 23: 3192-3203 DOI: 10.1007/s11771-016-3385-5 Numerical modeling dynamic process of multi-feed microwave heating of industrial solution media YANG Biao(杨彪)1, 2, 3, SUN Jun... polarization of water and resistance heating by the Joule process occurred simultaneously compared with pure water. A three-dimensional finite element numerical model of multi-feed microwave heating......
CaCO3在铝酸钠溶液中的反苛化作用 李小斌,郑洁,齐天贵,王丹琴,张海宝 (中南大学 冶金与环境学院,湖南 长沙,410083) 摘要:在热力学计算的基础上,研究CaCO3在铝酸钠溶液体系中发生反苛化反应的规律.热力学计算表明,低温条件下,CaCO3与游离苛性碱形成Ca(OH)2的反苛化程度较小,而其与Al(OH)4-形成3CaO·Al2O3·6H2O(C3AH6)的反苛化反应显著.CaCO3在纯NaOH溶液中反苛化反应的反应率小于5%,而在铝酸钠溶液中其反苛化率可达50%以上,说明Al(OH)4-对CaCO3的反苛化具有显著的促进作用;CaCO3的反苛化率随温度的升高而升高,随铝酸钠溶液苛性比αk的升高呈先升高后降低的规律,当αk为3时,出现极大值;常压条件下,CaCO3在铝酸钠溶液中发生反苛化反应形成C3AH6,而造成氧化铝损失. 关键词:碳酸钙;反苛化;铝酸根离子(Al(OH)4......
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alloy-based composites (mainly Al alloy/SiC composites). The metal matrix composites (MMCs) are slowly replacing the general light metal alloys such as aluminium alloy in different industrial... 要:混合金属基复合材料是重要的工程材料,因为他们比纯铝具有更低的密度,更高的比强度和更好的物理力学性能而广泛应用于汽车,航空航天等方面.研究了混合铝金属基复合材料的力学性能和磨损性能.通过搅拌铸造将云母和SiC颗粒加入到Al 356合金中.采用扫描电子显微镜(SEM)研究样品的显微组织,用能谱分析(EDX)其化学成分.结果表明, 所制备的Al/10SiC-3云母复合材料具有较好的强度和硬度......