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QUANTITATIVE STUDY ON GALVANIC EFFECTS DURING CAVITATION DAMAGE OF 1Cr13 STAINLESS STEEL H.Y.Yu1,X.L.Zhang1,X.Bai1,D.B.Sun1 (1.Corrosion and Protection Center, University of Science and TechnologyBeijing, Beijing 100083, China) Abstract:The influence of the surface galvanic effects of 1Cr13 SS during cavitation damage hasbeen investigated in NaCl solutions. The results show that the solution......
with carbon fiber have better mechanical properties than those with glass or aramid fiber. However, carbon fiber binding metal may lead to galvanic corrosion which limits its application... environment and explore anti-corrosion ways to protect CARALL. The results show that the connection between carbon fiber and aluminum alloy changes electric potential, causing galvanic corrosion......
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was adopted to single out the galvanic and passivation effects with four sets of minerals: pyrite-silica, chalcopyrite-silica, sphalerite-silica and stibnite-silica. Pyrargyrite enhanced Au recovery to 77.3% and 51.2% under galvanic and passivation effects from pyrite (vs 74.6% and 15.8%). Pyrargyrite in association with sphalerite also enhanced Au recovery to 6.6% and 51.9% (vs 1.6% and 15.6%) under......
was studied. The results show that, with the presence of activated carbon, the carrollite dissolution rate accelerates and the cobalt recovery rate increases, which attributes to the galvanic interaction... by pulp pH. With dropping pH, the adsorption capacity of Co2+ by activated carbon reduces. Key words: activated carbon; catalytic effect; galvanic effect; bioleaching; carrollite; adsorption钴是继铜,铀,金之后第四个......
in the processing of enargite concentrates"[J]. Mineral Processing and Extractive Metallurgy Review, 2014b, 35(5): 390-422. [7] PADILLA R, ARACENA A, RUIZ M C. Reaction mechanism and kinetics of enargite oxidation...): 1283-1287. LI Hong-xu, QIU Guan-zhou, HU Yue-hua, WANG Dian-zuo. Galvanic effect on mixed sulfide bioleaching[J]. The Chinese Journal of Nonferrous Metals, 2003, 13(5): 1283-1287. [20] ZHONG Shui-ping......
are generally removed by replacement reaction. Currently, the removal process is usually completed by two kinds of equipment as suspended tank and mechanical stirred tank [1], and some problems usually exist... in Fig. 4. It is clear that purification efficiency is improved with the increase of the length of the replacement column because the longer replacement column provides longer reaction time. However......
id="ChDivSummary" name="ChDivSummary"><正> The partial replacement of the noble metal Pt with rare-earth compound and the application of the compound to the inclusion and modification of traditional methane’s catalyst used in oxidation reaction has demonstrated considerable increase both in the absorption of the catalyst and in the activation and stability of the reaction.关键词:......
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Abstract: Intermetallic compounds(IMC) formed at Sn-Ag-Cu solder droplet/pad interface during wetting reaction were investigated. Comparative studies of the IMC evolution during reflow and aging were also conducted. The results show that the wetting reaction between molten solder droplet and pad leads to the formation of Au-Sn compound at interface, but Au element is not fully consumed......
