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Wysłany: Sob 22:39, 08 Sty 2011
Temat postu: ugg prezzo Anodized aluminum microstructure and pr
Anodized aluminum microstructure and properties of
Ring sets of materials aging process of compound I Aluminosilicate Short Fiber / ZL109 composites during aging behavior of the main or a matrix,
ugg prezzo
, the hardness of their time was significantly higher than hardness of the matrix Taijin the time. 【】 Key to adjust multiple sets of Aluminosilicate Short Fiber aging characteristics of material microstructure TheMicrostructureandAgingBehaviorsofAI-SilicateShortF-bber/ZL1O9CompositesHeChunt ~ a (DepartmentofMechanicalEnl faint neering · GvangdangUniversityo | Technology) [Abstract] TheMicrostrocturesofAI-silicateshortfibber/ZL109compositeyliquidin [Jltrationmethodwrewelldistributedandhadnocastingde (ectstthecrystallinegrainswerefined.TheanalysesoftheaginghardnessCLU ' VeOfthecompositesshowedthattheadditionsofAl-silicateshortfibberacceleratedagingandthereweredoublehardnesspeaksonthehardnesscurve.Theagingprocesswasaffectedbyagingtemperature.Theagingbehaviorofthecompositeswasmainlyeontronedbythematrixmaterial, andthehardnessobviouslyexceededthatofthematrix. [Keywords] Al-silicateshortfibbercompositesmierosUmctureagingbehaviors1 Introduction Aluminosilicate Short Fiber wide variety of sources, the price is cheap and superior performance,
air jordans
, has been considered most likely replaced AIO short fiber reinforced metal matrix composites obtained and the application the engine parts. With the composite material technology matures,
ugg stivali
, the aging behavior of composite materials has increasingly become the focus of attention]. through time analysis, we can know the reinforcement fibers on the matrix Taijin kinetics of aging. In this paper, silicon acid aluminum short fiber / ZL109 composite microstructure were analyzed to study its aging characteristics, and were compared with the ZL109 alloy. 2 Experimental Methods Experimental silicate short fibers used in chemical composition and performance indicators such as Table 1 said. ZL109 Taijin the chemical composition shown in Table 2. aluminosilicate short fibers made of prefabricated parts,
ugg milano
, into a pre heated in metal type, and into the molten liquid alloy ZL109. short aluminum composite material fiber volume fraction (,) is 32. on the Preparation of the composite material sample, the polished, polished, etched in the Camera for Olympus microscope to observe the microstructure and photographed. Kim ZL109 the solution heat treatment (500 ± 5 ℃ × 5h, water quenching); 160,180, respectively, after solution treatment and aging 200 ℃ for 12h heat treatment, at regular intervals by removing a sample of a 3000 HB Brinell hardness tester hardness set O f (load 49N,
Moncler jacken
, ball diameter and 5mm), take 4 to 5 points on average. 3 Table 1 Experimental results and analysis of performance parameters of aluminosilicate short fiber tray table 2ZL109 Taiwan Wei min () SilMgllFeIMnAI11.0 ~ 13.0 } 0.8 ~ 1.5f0.5 ~ 1.5f05f0f margin 3.1 Microstructure of composite materials Preparation of the composite microstructure shown in Figure 1. fiber and the matrix of the interface is clear, no holes, combination of both is better, the distribution of reinforcement fibers is also more evenly in the matrix was disordered state distribution. From the figure can be seen in the fiber and matrix interface, there is a 410 SX fiber used box resistance furnace of the composites and matrix co-M .35 years old. Master. 12 lecturers of a \
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