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composite; Al2O3 particles; microstructure; wear 1 Introduction The particles reinforced aluminium alloy matrix composites, which possess high-specific elastic modulus and strength, are being widely... composite reinforced by γ-Al2O3 particles was produced by adding NH4AlO(OH)HCO3(AACH) into molten Al-Si alloy at 850 ℃. During stirring γ-Al2O3 particles are formed by the decomposing reaction of AACH......
); Al-13Si-5Cu aluminium alloy; EIS; polarization; corrosion resistance 1 Introduction In recent years, many efforts have been devoted to developing micro-arc oxidation (MAO) technique due... Corrosion resistance of micro-arc oxidized ceramic coating on cast hypereutectic alloy GUO Qiao-qin(郭巧琴)1, 2, JIANG Bai-ling(蒋百灵)1, LI Jian-ping(李建平)2, LI Gao-hong(李高宏)2, XIA Feng(夏 峰)2 1......
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material was a U-shaped aluminium alloy profile LY12M with thickness of 2 mm and length of 800 mm. Table 1 lists the properties of LY12M material obtained from uniaxial tension test. In the FE...]. Journal of Materials Processing Technology, 2002, 123: 264-269. [7] PAULSEN F, WELO T. Application of numerical simulation in the bending of aluminium alloy profiles [J]. Journal of Materials......
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of aluminium bronze, stainless steel and nickel-iron alloy were determined. The reason of decrement in internal stresses of multilayer composite coatings was discussed.关键词:...MEASUREMENT OF INTERNAL STRESSES OF METAL MULTILAYER COMPOSITE COATINGS顾卓明摘 要:<正> The principle, formula and determination of internal stresses......
to synthesize Si3N4/Al composite was investigated. Al-2%Mg alloy was infiltrated into Si3N4 and Si3N4 containing 10% Al2O3 preforms in the atmosphere of nitrogen. It is possible to infiltrate Al-2%Mg alloy in Si3N4 and Si3N4 containing 10% Al2O3 preforms. The growth of the dense composite of useful thickness was facilitated by the presence of magnesium powder at the interface and by flowing......
and that of the Cu-enriched surfaces of the SSM-HPDC alloys. Key words: semi-solid metal (SSM) forming; wrought aluminium alloys; alloy 7075; alloy 2024; corrosion; surface liquid segregation 1... cast aluminium alloy A356[J]. Solid State Phenomena,2008, 141/143: 433-438. [9] M?LLER H, CURLE U A, MASUKU E P. Characterization of surface liquid segregation in SSM-HPDC aluminium alloys 7075, 2024......
to fabricate AA6061 matrix composite reinforced with various contents of AlN (viz., 0, 5%, 10%, 15% and 20%, mass fraction). Cleaned extruded aluminium alloy (AA6061– T6) rods of 25 mm in diameter... ceramic particles in the composite takes more load compared with monolithic aluminium alloy. Addition of AlN reinforcement in the composite increases the ratio of the area of contact of AlN......
was noted in diffraction patterns, indicating that the formation of deleterious precipitate was hindered by the cleaning process. Key words: aluminium alloy composite; silicon carbide; wetting agent... at an interval of 2 min. 2.2 Casting of Al/SiC composites AA6011 ingot was charged into a crucible in a muffle furnace and heated to a temperature of about 800 °C for about 1 h to obtain molten aluminium alloy......