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不同相Mg-Li合金微弧氧化的成膜特征王丽萍1,姚忠平2,徐用军2,姜兆华21. 中国工程物理研究院2. 哈尔滨工业大学化工学院摘 要:为了认识Mg-Li结构对其微弧氧化陶瓷膜的影响,研究了纯α相,α+β双相及纯β相Mg-Li合金在Na2SiO3溶液中微弧氧化的成膜特点.采用ICP-AES测量了微弧氧化时基体中Li+的析出量;通过SEM,EDS,XRD等分析了陶瓷膜表面和截面形貌,元素分布及其相组成;利用测厚仪测量了陶瓷膜的厚度.结果显示:β相基体中的Li在微弧氧化过程中的析出量超过α相和α+β相;α相击穿电压最低,最终槽压最大;α+β相膜层最为均匀,孔洞最少;陶瓷膜均由O,Na,Mg,Si 4种元素组成;α相膜层由MgO相组成,α+β相和β相膜层均由MgO和Mg2SiO4两相组成;α相基体表面膜层最......
The Strengthening of Cu-15Ni-8Sn Alloy WANG Ming-Pu1,WANG Yan-hui1,HONG Bin1 (1.School of Material Science and Engineering, Central South University, Changsha China) 摘要:The microstructure, property and relation between them of Cu-15Ni-8Sn alloy are studied by means of TEM and the measurement of hardness. The results show that γ '' metastable phase strengthens alloy because of its ordering......
in order to reduce mass[1]. However, Mg-Li alloy is chemically active, and its cast ingot is generally prepared by common mould casting because of no usable semi-continuous casting technique and equipment. So, Mg-Li alloy ingot has larger grain size and its strength is obviously lower than those of general magnesium alloys. To improve its strength and then extend its application, many new processes......
激光处理后Mg-Li基合金的组织和耐腐蚀寿命Р.Х.Калимуллин,Ю.Я.Кожевников,滑志高摘 要:<正> 以Mg-Li为基的合金--超轻金属结构材料.比铝合金轻2倍(密度为1.3~1.6g/cm~3),而且,具有高的弹性模量(45~50GMa)及良好的工艺性.但是,Mg-Li合金尤其在海洋气氛条件下腐蚀寿命短.关键词:......
The Technological Improvements of Aluminum Alloy Coloring by Electrolysis LI Nai-jun1 (1.Teachers College, Shenyang University, Shenyang 110015, P. R. China) 摘要:The technological process of coloring golden-tawny on aluminum alloy by electrolysis was improved in this paper. The optimum composition of electrolyte was found, the conditions of deposition and anodic oxidation by electrolysis were......
of the extruded dual-phase Mg-Li alloy consisted of recrystallized β-Li grains, banded α-Mg phases, and Al2Y phases distributed in β-Li phases and phase-interface uniformly. Compared with CE, the specimens after DCCAE had smaller β-Li grain size(3–5 μm by the DCCAE and 6–10 μm by the CE) and the α-Mg phases were refined during the DCCAE. The distribution of the Al2 Y phases was improved a lot......
of the extruded dual-phase Mg-Li alloy consisted of recrystallized β-Li grains, banded α-Mg phases, and Al2Y phases distributed in β-Li phases and phase-interface uniformly. Compared with CE, the specimens after DCCAE had smaller β-Li grain size(3–5 μm by the DCCAE and 6–10 μm by the CE) and the α-Mg phases were refined during the DCCAE. The distribution of the Al2 Y phases was improved a lot......
Electrochemical codeposition of typical α+β phases Mg-Li alloys from the molten LiCl-KCl-MgCl2 systemYE Ke, CHEN Ye, and ZHANG Milin Key Laboratory of the Ministry of Education for Superlight... codeposition of Mg-Li alloys on molybdenum electrodes was investigated in LiCl-KCl(50 wt.%:50 wt.%) melts containing different concentrations of MgCl2 at 973 K.Cyclic voltammograms show......
by the introduction of compression twins. References [1] DROZD Z, TROJANOVA Z, KUDELA S. Deformation behaviour of Mg-Li-Al alloys[J]. J Alloy and Compd, 2004, 378: 192-195. [2] TROJANOVA Z, DROZD Z... Compression behavior of magnesium-lithium alloy at room temperature WANG Cong (王 聪) 1, LI Zhuo-qun (李卓群) 1, XU Yong-bo (徐永波) 2, HAN En-hou (韩恩厚) 1 1. Environmental Corrosion Center, Institute......
Microstructure and Performances of Nanocrystalline Zinc-nickel Alloy Coatings LI Guang-yu1,NIU Li-yuan1,JIANG Zhong-hao1,LIAN Jian-she1 (1.The Key Lab of Automobile Materials, Ministry of Education, China, College of Materials Science and Engineering, Jilin University, Nanling Campus, Changchun, 130025, China) 摘要:Nanocrystalline zinc-nickel alloy coatings were deposited from an alkaline......