Cyclic voltammetry and chronopotentiometry were used to study the reaction mechanism of Pb(Ⅱ) and the co-deposition of Pb,Mg and Li on molybdenum electrodes in LiCl-KCl-PbCl2-MgCl2 *** diffusion coefficient of lead...
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Cyclic voltammetry and chronopotentiometry were used to study the reaction mechanism of Pb(Ⅱ) and the co-deposition of Pb,Mg and Li on molybdenum electrodes in LiCl-KCl-PbCl2-MgCl2 *** diffusion coefficient of lead ions in the melts was determined by different electrochemical *** results obtained by cyclic voltammetry and chronopotentiometry indicated that the underpotential deposition of lithium on pre-deposited Pb leads to the formation of a liquid Li-Pb alloy,and the Mg-Li-Pb alloys are formed after the addition of MgCl2.X-ray diffraction confirmed that in the Mg-Li-Pb alloy,PbLi3,Mg2Pb and Li7Pb2 phases exist by galvanostatic electrolysis at 6.21 A/cm2 for 2 h at 873 K and the phases can be controlled by changing the concentration of PbCl2 and MgCl2.
An integrated low-temperature nitriding process was carried out for Ti6Al4V to investigateitseffect on microstructure and *** process was designed to enhance the nitriding kinetics in low-temperature(500℃) nitridin...
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An integrated low-temperature nitriding process was carried out for Ti6Al4V to investigateitseffect on microstructure and *** process was designed to enhance the nitriding kinetics in low-temperature(500℃) nitriding by deformation, and to strengthen Ti6Al4V alloybydispersionat the same time. Specimens of Ti6Al4V alloyweretreated through the process of solid solutionstrengthening-cold deformation-nitriding at 500℃. The white nitriding layeris formed after some time and then kept stable, changing little withthedeformationdegreeand time. The effect of aging on substrate is significant. Surface hardness and substrate hardnessincrease with deformation increasing. The construction was investigated by *** surface nitridesare TiN, Ti2N, Ti4N3-Xand Ti3N1.29,and thenitridesin cross-section are Ti3N1.29and TiN0.3. The wear tests of specimens after nitriding, aging and deformation were carried out,andthetest data show that the nitrided pieces have the best wear resistance.
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