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冷轧变形对镀Ni-Co钢带耐腐蚀性能的影响 王建兴1,潘勇1,贺军1,王孝广1,周兆锋1 (1.湘潭大学低维材料及其应用技术教育部重点实验室,材料与光电物理学院,湖南湘潭,411105;2.湖南利德材料科技股份有限公司,湖南株洲,412000) 摘要:为了获得高性能的合金镀层薄膜材料,采用电沉积法制备了Ni-Co合金镀层薄膜,对镀层的钴含量,表面形貌及冷轧变形下的耐腐蚀性能进行了研究.结果表明:当镀液中硫酸钴含量为2 g/L时,合金镀层中的钴含量约为3.89%,镀层表面光亮,结晶致密;冷轧变形量为2%~4%时,镀Ni-Co合金薄膜钢带的耐腐蚀性能得到提高,变形量超过4%后其耐腐蚀性能降低.这说明小的冷轧变形能有效地提高镀层的耐腐蚀性能. 关键词:电沉积镍钴合金; 耐腐蚀性能; 冷轧变形; [全文内容正在添加中] ......
Application of molecular interaction volume model in separation of Sn-Zn alloy by vacuum distillationKONG Ling-xin(孔令鑫)1, 2, 3, YANG Bin(杨斌)1, 3, LI Yi-fu(李一夫)1, 2, 3, XU Bao-qiang(徐宝强)1, 2, 3, HAN... model (MIVM); separation......
比达11.08,铝浮选回收率为75%；与传统的阳离子捕收剂十二胺相比,胍类阳离子捕收剂对硅酸盐矿物浮选能力强,受pH的影响小,是一种新型高效的铝硅矿物浮选分离捕收剂. 关键词:十二烷基胍；一水硬铝石；硅酸盐矿物；浮选；分离 中图分类号:TD 923；TD 925 文献标识码:A Flotation separation... kaolinite, pyrophyllite and illite, the flotation separation of artificial mixed minerals with diaspore and aluminosilicates were all investigated, and the flotation of one bauxite ore by using......
SEPARATION OF MATERIALS IN SWIRL SHAFT PREHEATER朱明,曲祖源,邱树恒摘 要:<正>On the basis of theoretical analysis and coldmodel test,the material motion locus and the particle sizewhich can be separated in the swirl shaft preheater was stud-ied.A new calculation method for separation efficiency basedon the meterial size distribution curve of charge and dis......
J. Cent. South Univ. (2021) 28: 2003-2009 DOI: https://doi.org/10.1007/s11771-021-4667-0 Separation of potassium from sodium in alkaline solution by solvent extraction with 4-tert-butyl-2-(α... Germany, part of Springer Nature 2021 Abstract: This work investigated the separation of potassium from sodium in alkaline solution using substituted phenol-based extractants. Superior potassium......
Separation of silver from silver-manganese ore with cellulose as reductant ZHANG Xiao-yun(张小云), TIAN Xue-da(田学达), ZHANG Dong-fang(张东方) College of Chemical Engineering, Xiangtan University... silver-manganese ore with a grade of 3.15×10-4 was concentrated by a combined beneficiation technique including magnetic separation, flotation, reducing leaching and gravity desliming. The major silver......
Co对高Ni-Co二次硬化钢微结构影响的穆斯堡尔谱研究 苏杰1,张国英2,钱存富3,曾梅光3,李荣1 (1.钢铁研究总院结构材料研究所,;2.东北大学理学院,沈阳工业大学信息科学与工程学院,;3.东北大学理学院,) 摘要:用穆斯堡尔谱研究了钴含量对高Ni-Co二次硬化钢微结构的影响.发现:随着钢中钴含量的减少,马氏体中的钴作为铁原子近邻的原子组态总量减少;钴在马氏体中的分布会影响镍,铬,钼原子在马氏体中的分布;钴促进奥氏体向马氏体转变,减少残余奥氏体量;钴促进合金碳化物的形成,增加其析出量. 关键词:穆斯堡尔谱; 超精细场; 合金元素分布; Co; 二次硬化钢; [全文内容正在添加中] ......
Liquid-liquid phase separation in highly undercooled Ni-Pb hypermonotectic alloys YANG Gen-cang(杨根仓)1, XIE Hui(谢 辉)1, 2, HAO Wei-xin(郝维新)1, ZHANG Zhong-ming(张忠明)2, GUO Xue-feng(郭学锋)2 1. State... structures and DTA analysis prove that liquid phase separation still occurs in the highly undercooled Ni-Pb hypermonotectic alloy melts, and liquid phase separation in the immiscible gap can not be fully......
by magnetizing roast with CO as reductant and produced concentrate with iron grade of 60.67% and iron recovery of 94.49% by magnetic separation. When limonite was reduced by coal during magnetizing roast... on magnetic difference of Fe3O4 and other minerals, iron concentrate can be produced by magnetic separation. 3Fe2O3(s)+C(s)=2Fe3O4(s)+CO(g) ......
will separate into two liquids in equilibrium state depending on the composition and temperature. The liquid separation of Cu-Co or Cu-Fe system occurs at a temperature that is lower than that of liquidus or occurs in supercooled melts. The liquid phase separation of Cu-Co, Cu-Fe and Cu-Co-Fe systems have been studied in detail by CAO et al[14,15], ROBINSON et al[19], ELDER et al[20] and SUN et al[16-18......
