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Effect of nano-silver on microstructure, mechanical and tribological properties of cast 6061 aluminum alloy

Transactions of Nonferrous Metals Society of China 2017年第10期27卷 2137-2145页

作者： G.PITCHAYYAPILLAI P.SEENIKANNAN P.BalASUNDAR P.NARAYANASAMY Department of Mechanical Engineering Sethu Institute TechnologyKariapatti Virudhunagar 626 115 Tamilnadu India Department of Mechanical Engineering Rajalakshmi Institute of TechnologyChennai 600 124 Tamil Nadu India Department of Mechanical Engineering Kamaraj College of Engineering and TechnologyVirudhunagar 626 001 Tamil Nadu India

al6061matrix with different amounts of nano-silver(1%and2%)was produced by stir-casting *** were characterized by hardness,tensile,compression and wear *** hardness of the specimens at room temperature wasmeasured by Brinnell hardness testing *** magnitude of hardness increased evidently with the function of the mass fractionof the nano-Ag *** polished specimens were examined with an optical *** fracture surfaces of tensile andcompressive specimens were further examined by scanning electron *** mechanisms were discussed based on thescanning electron microscopy observations of worn surface and wear debris *** is an increase in compressivestrength,ultimate tensile strength,elongation and wear resistance of the al?Ag composites compared with base *** executionof stir-casting technique is relatively homogenous and fine microstructure which improves the addition of reinforcement material inthe molten *** results show that al6061?nano-silver which is the best combination of hardness can replace the conventionalmaterial for better performance and longer life.

关键词： al6061 alloy nano silver stir casting mechanical properties tribological properties

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