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Ammoniacal leaching and recovery of copper from alloyed

Nov 26, 2014 · Composition of the alloy. The alloy obtained from low-grade electronic scraps was a polymetallic and multiphase material with a general composition presented in Table 1. It contained 72 % Cu, 16 % Zn and 6 % Ag, comparable amounts of Fe and Sn (~1.5 %) as well as some other metals (each below 1 %). Cooperative deformation in high-entropy alloys at ultralow High-entropy alloys exhibit exceptional mechanical properties at cryogenic temperatures, due to the activation of twinning in addition to dislocation slip. The coexistence of multiple deformation pathways raises an important question regarding how individual deformation mechanisms compete or synergize during plastic deformation. Using in situ neutron diffraction, we demonstrate the interaction

Development of Lead-Free High-Strength Copper Alloy

The alloy we have developed is a lead-free, high strength free-cutting copper alloy with tensile strength of 650 MPa and an elongation of 43%, which can be realized by annealing a 76.3Cu3.2Si0.2SnZn alloy and controlling the grain size to 8 µm. This Paper was Originally Published in Japanese in J. Japan Inst. Copper 58 (2019) 4044. Captions of Figures and Tables were slightly modified. EP1600517A2 - Lead-free, free-cutting copper alloys The present invention relates to lead free, free cutting copper alloys and methods of their manufacture. In particular, the present invention is directed to a lead-free, free-cutting copper alloy which comprises 69 to 79 percent, by weight, of copper; 2.0 to 4.0 percent, by weight, of silicon; and the remaining percent, by weight, of zinc and wherein the metal structure of the free cutting EP2258882B1 - High-strength and high-electroconductivity EP2258882B1 EP09725275.3A EP09725275A EP2258882B1 EP 2258882 B1 EP2258882 B1 EP 2258882B1 EP 09725275 A EP09725275 A EP 09725275A EP 2258882 B1 EP2258882 B1 EP 2258882B1 Authority EP European Patent Office Prior art keywords alloy conductivity strength mass precipitates Prior art date 2008-03-28 Legal status (The legal status is an assumption and is not a

Properties of hydrogen absorption by nano-structured FeTi

May 01, 2008 · Haraki T, Oishi K, Uchida H, Miyamoto Y, Abe M, Kokaji T, Uchida S. Properties of hydrogen absorption by nano-structured FeTi alloys. International Journal of Materials Research . 2008;99(5):507-512. The Mechanical Behaviors of Various Dental Implant

  • AbstractIntroductionMaterials and MethodsResults and DiscussionConclusionConflicts of InterestThe selection of materials has a considerable role on long-term stability of implants. The materials having high resistance to fatigue are required for dental implant applications since these implants are subjected to cyclic loads during chewing. This study evaluates the performance of different types of materials (AISI 316L stainless steel, alumina and its porous state, CoCr alloys, yttrium-stabilized zirconia (YSZ), zirconia-toughened alumina (ZTA), and cp Ti with the nanotubular TiO2 surface) by finite element analUS8211250B1 - Method of processing a bismuth brass article As indicated above, the article 20is fabricated from a bismuth brass alloy. The bismuth brass alloy has a composition that includes, by weight percentage, 58-63 of copper, 0.8-1.5 of bismuth, US5078962A - High mechanical strength magnesium alloys The invention relates to high mechanical strength magnesium alloys and to a process for producing these alloys by fast solidification and consolidation by drawing generally exceeding 400 or 500 MPa, an elongation at break of generally at least 5% and a chemical composition by weight within the following limits:_____ Aluminium 2-11%Zinc 0-12%Manganese 0-1%Calcium 0.5-7%Rare Earths 0.1

    Translate this pageAlloy 59 VDM:Alloy C-22 C-22:Alloy C-276 C-276:Alloy B-2 B-2:Alloy 201 201:Alloy 400 400:Alloy 20 20Cb3:Alloy 825 825