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LF21 electrolytic coloring films of rare earth physical and chemical properties of

Less than 1, quenched by the lOO ℃ to ~ 77 ~ C, the rare earth containing greater than or equal to 0. zo%, the color change is less than 1. Al-Mn alloy in the composition of the main phase a (A1) solid solution and MnA1e phase, in addition to (FeMn) Al. , A small amount of T (A1l2Mn3Si】 2), a (A1I2Fe3Si】 3) ternary take four yuan impurity phase. Because the distribution of manganese compounds is not the first l3 set of uniform, resulting in shiny material and products,[link widoczny dla zalogowanych], the uneven surface of the cast metal compounds of manganese within the larger grain deflection,[link widoczny dla zalogowanych], Mn concentrations in the center of Prism,[link widoczny dla zalogowanych], low and at the edges high. Although the deformation process in the heating phase in the Prism manganese and slip plane before the edge of the precipitation occurs, the uneven nature of its components still exist. Adding rare earth elements in the alloy and reduce the segregation of manganese, so that recrystallization temperature zone becomes smaller, the tendency of grain growth is reduced, so that Taijin structure refinement, (FeMn) A1. Thick sheets and other compounds into columnar dendritic, pellet-like small particles. Refinement of homes gold surface smooth, easily oxidized in the oxidation process, the formation of oxide film distribution, pore body size is small, by the electrolytic coloring, the formation of uniform color, luster and good film, this film deposition for the Sn, Ni metal and metal oxide, the amount of sediment than ordinary high in aluminum. Electric condensate during deposition along the A axis deposition Sn, Ni particles, which generates directional deposition of dense oxide film, with strong corrosion resistance. In addition, the metal tin particles dispersed, making the electrolytic coloring layer of contorted metal crystal, crystal defects increase. The solid particles dispersed in the films but also hinder the dislocation movement, which occurred in the role of particle dispersion strengthened iv. This role of the film hardness, wear resistance, impact resistance and other performance improvements. III Conclusions 1. Rare earth elements significantly improve the electrolytic coloring repeated physical and chemical properties. 0.3% rare earth content presented in the extreme. 2. At lower electrolyte concentration,[link widoczny dla zalogowanych], voltage, time and temperature conditions, the availability of good quality electrolytic coloring film. 3. Excess of rare earth electrolytic coloring film properties will decline, rare earth content not higher than 0.30%. 4. More systematic study of rare earth manganese Taijin aluminum oxide process conditions on film properties. References [1] Lu 60.197899 [2] Chao-61 for a t | 35g? 2 thin ELF. Physical and chemical properties of electrolytic coloring film studies [3] Wang ball, Corrosion and Protection (1989). No6E4] SkeayPGcta1. Theco] ouTingofAnodizedAluminumbyMeansofOptlca [InterienceEffects. Trans] MF, 58 (1980) 41 - {7 [5] Hu Gang, Applied Chemistry, 1990 (forthcoming Yuan) 6] Zhao Sen lance material according to Taiwan, defense workers leek Press. (1979) TheStudyonthePhysicochemicalPropertiesofRareEarthLF21ElectrolyticColouredMembraneWangBing (ChmlgehunInstituteofAppliedChemistry, AcademlaSintea, chlna) AbstractTheinfluenceoftechnologyofanodicoxidationonthephysicochemicalpropertiesofrareearthAI-Mnalloyelectrolyticcolouredmembraneisrecited. Resultsconfirmthatinthesulfuricacid-stannoussulfatee1ectro. 1yriccolouringliquidtheobtaindmembranesarequslifiedwithbetterphysicochemicalproperties. Thesepropertiesarethebest, whenrareearthcontenti80.30. Keywords: Rareearth, Aluminummanganesealloy, Electrolyticcolour. ing, Anodicoxidation

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