An object of the present invention is to provide an aluminum plate which is excellent in terms of both step suitability and working characteristics and a collector for a storage device using the same. The aluminum plate of the present invention is an aluminum plate having a plurality of through-holes formed in a thickness direction, in which a thickness of the aluminum plate is 40 μm or less, an average opening diameter of the through-holes is 0.1 to 100 μm, an average opening ratio by the through-holes is 2% to 30%, a content of Fe is 0.03% by mass or more, and a ratio of the content of Fe to a content of Si is 1.0 or more.

5000 series aluminum wrought alloys with high strength, high formability, excellent corrosion resistance, and friction-stir weldability, and methods of making those alloys.

A method to reduce the total anode mass of a cathodic protection system by reducing or eliminating the total cathode area is disclosed, the system comprising: a metallic first-layer coating which being anodic to the component or substrate to be protected, bonded to the component or substrate and electrically conductive. A sacrificial anode in the form of a metallic second-layer coating is distributed over the first-layer coating. The second layer coating has an open circuit potential that is equal to the first-layer coating or being anodic to the first-layer coating and to the substrate, the second-layer coating electrically conductive, bonded to the first-layer coating and exposed to the surrounding environment.

A method to reduce the total anode mass of a cathodic protection system by reducing or eliminating the total cathode area is disclosed, the system comprising: a metallic first-layer coating which being anodic to the component or substrate to be protected, bonded to the component or substrate and electrically conductive. A sacrificial anode in the form of a metallic second-layer coating is distributed over the first-layer coating. The second layer coating has an open circuit potential that is equal to the first-layer coating or being anodic to the first-layer coating and to the substrate, the second-layer coating electrically conductive, bonded to the first-layer coating and exposed to the surrounding environment.

A 2-step high temperature process for recovering Ni, Co, and Mn from various sources comprises preparing a metallurgical charge comprising materials containing Ni, Co, and Mn, and Si, Al, Ca and Mg as slag formers; smelting the charge with slag formers in first reducing conditions, thereby obtaining a Ni—Co alloy comprising a major part of at least one of Co and Ni, with Si<0.1%, and a first slag comprising the major part of the Mn; separation of the first slag from the alloy; and, smelting the first slag in second reducing conditions, more reducing than said first reducing conditions, thereby obtaining a Si—Mn alloy comprising the major part of the Mn, with Si>10%, and a second slag. A Ni—Co alloy is produced, and a Si—Mn alloy is produced. The second slag is essentially free of heavy metals and therefore suitable for reuse.

A 2-step high temperature process for recovering Ni, Co, and Mn from various sources comprises preparing a metallurgical charge comprising materials containing Ni, Co, and Mn, and Si, Al, Ca and Mg as slag formers; smelting the charge with slag formers in first reducing conditions, thereby obtaining a Ni—Co alloy comprising a major part of at least one of Co and Ni, with Si<0.1%, and a first slag comprising the major part of the Mn; separation of the first slag from the alloy; and, smelting the first slag in second reducing conditions, more reducing than said first reducing conditions, thereby obtaining a Si—Mn alloy comprising the major part of the Mn, with Si>10%, and a second slag. A Ni—Co alloy is produced, and a Si—Mn alloy is produced. The second slag is essentially free of heavy metals and therefore suitable for reuse.

The present disclosure relates to a method of preparing an aluminum-containing alloy powder and an application thereof. The preparation method includes: by using the characteristic that a solidification structure of an initial alloy includes a matrix phase and a dispersed particle phase, the matrix phase is removed by reaction with an acid solution, so as to separate out the dispersed particle phase and obtain an aluminum-containing alloy powder. The preparation method is simple in process and can prepare different morphologies of aluminum-containing alloy powders of nano-level, sub-micron-level, micron-level and millimeter-level, which can be applied to the fields such as photo-electronic devices, wave absorbing materials, catalysts, 3D metal printing, metal injection molding and corrosion-resistant coating.

An aluminum alloy and a preparation method thereof are provided. In percentage by mass, the aluminum alloy includes: 8-11% of Si, 2-3% of Cu, 0.7-1.1% of Mg, 0.7-1.5% of Mn, 0.01-0.015% of Sr, 0.01-0.015% of Cr, 0-0.4% of Fe, 0.02-0.1% of Ti, 0.01-0.02% of Ga, 0.004-0.02% of B, 0-2% of Zn, and the balance of Al and less than 0.1% of other elements.

The present disclosure provides a high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy, including the following chemical elements by mass percentage: 1.0-10.0% of Gd, 0.2-2.0% of Ni, 5.5-10% of Li, and the rest of Mg and inevitable impurities. The impurities have a total content less than or equal to 0.3%. The present disclosure further provides a preparation method of the high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy. The high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy provided by the present disclosure constructs an α-Mg+β-Li dual-phase matrix structure by introducing β-Li with a body-centered cubic (BCC) structure with relatively more slip systems to improve plasticity of the alloy, then adds a certain amount of Gd element to weaken texture and promote non-basal plane slip, and further improves plasticity. In addition, by introducing the high-potential Ni-containing LPSO phase, a large potential difference with α-Mg and β-Li is formed to increase the degradation performance.

The present disclosure provides a high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy, including the following chemical elements by mass percentage: 1.0-10.0% of Gd, 0.2-2.0% of Ni, 5.5-10% of Li, and the rest of Mg and inevitable impurities. The impurities have a total content less than or equal to 0.3%. The present disclosure further provides a preparation method of the high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy. The high-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy provided by the present disclosure constructs an α-Mg+β-Li dual-phase matrix structure by introducing β-Li with a body-centered cubic (BCC) structure with relatively more slip systems to improve plasticity of the alloy, then adds a certain amount of Gd element to weaken texture and promote non-basal plane slip, and further improves plasticity. In addition, by introducing the high-potential Ni-containing LPSO phase, a large potential difference with α-Mg and β-Li is formed to increase the degradation performance.