Journal
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
Volume 18, Issue -, Pages S55-S58Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(10)60174-4
Keywords
mechanical property; damping capacity; Mg-Cu-Mn alloy; Granato-Lucke theory
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The effects of Cu and Mn additions on mechanical properties and damping capacity of Mg-Cu-Mn alloy were investigated. The tensile properties and damping capacity at room temperature of as-east Mg-Cu-Mn alloy were tested. The microstructure was studied using optical microscope, X-ray diffraction and scanning electron microscope. The Hall-Petch relation and Granato-Lucke model were used to explain the influences of Cu and Mn additions on the tensile properties and damping capacity of Mg-Cu-Mn alloy. The results show that Cu and Mn additions remarkably reduce the grain size of Mg-Cu-Mn alloy, but have little influence on phase composition and solute atoms concentration, the tensile properties increase obviously and the internal friction of Mg-Cu-Mn alloy decreases with grain refining.
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