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solidification. The surface of solid steel plate was defatted, descaled, immersed (in K2ZrF6 flux aqueous solution) and stoved. In order to determine the thickness of Fe-AI compound layer... bonding parameters (such as preheat temperature of steel plate, temperature of aluminum liquid and bonding time) and thickness of Fe-AI compound layer at the interface was established by artificial neural......
. The irregular Fe2O3 layer is seen on the top surface of the composite coatings. Fe40Al coating and Fe40Al-15WC composite coating both suffer a catastrophic corrosion due to the formation of a porous... and XRD spectrum, the majority metallic phases in all coatings were Fe, Al and iron aluminide (Fe3Al and FeAl). White WC particles were embedded in the metal matrix of the composite coating. From Fig.2......
and the cooling water so the plate surface temperature is one of the important parameters during heat transfer process. As shown in Fig.4(a), due to the larger temperature difference between metal...J. Cent. South Univ. Technol. (2008) 15: 136-140 DOI: 10.1007/s11771-008-0027-6 Application of neural network to prediction of plate finish cooling temperature WANG Bing-xing......
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metal foam; reticular nickel foam; composite structure for sound absorption; low frequency sound absorption 1 Introduction Noise pollution is a worldwide hazard. To solve this problem, noise reduction... 2.3 mm and average pore diameter 0.652 mm, one layer of the foam plate backed by 1-5 mm cavum would have a quite poor sound absorption performance, presenting the maximum absorption coefficient......
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without SiC particles. The SiCp/AA5083 composite region exhibits a Vickers hardness of HV90, which is much higher than the value of HV80 in the SZ produced by FSW without SiC particles. Key words: metal matrix composite; SiC particle; friction stir welding; mechanical property 1 Introduction Aluminum-based metal matrix composites (MMCs) reinforced with ceramic particles is interesting structural......
Fabrication of curved micro structures on photoresist layer Jae Sung YOON, Tae-Jin JE, Doo-Sun CHOI, Sung Hwan CHANG, Kyung-Hyun WHANG Nano Mechanical Systems Research Division, Korea Institute... was introduced. The curved structures were made by compensating rectangular micro structures with liquid photoresist layer. Because of the surface tension of the liquid in micro scale, various shapes......
. In this paper, by means of SMAT to a pure zirconium plate at the room temperature, repetitive multidirectional peening of steel shots (composition (wt%): 1C, 1.5Cr, base Fe) severely deformed the surface layer...In Situ Synthesis of Nanocrystalline Intermetallic Compound Layer during Surface Mechanical Attrition Treatment of Zirconium LU Ke1,HONG You-shi2,SUN Cai-yun2,LU Jian3,WU Xiao-lei2,LIU Gang1,XIE......
. The composite containing low porosity shows excellent wear resistance, which is attributed to the presence of mechanically mixed layer on the worn surface. In this case, the dominant wear mechanism is oxidative.... Preparation and characterization of coated nanoscale Cu/SiCp composite particles [J]. Ceramic International, 2004, 30(3): 401-404. [2] LEMSTER K, GRAULE T, KUEBLER J. Processing and microstructure of metal......
