Simulation of Natural Aging in Al-Mg-Si Alloys
作者： Thomas Weisz , Piotr Warczok , Thomas Ebner , Ahmad Falahati , Ernst Kozeschnik
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.828-829.468
关键词:
摘要: Natural aging during storage of Al-Mg-Si alloys at room temperature can significantly reduce the maximum strengthening potential (T6) artificial and, therefore, is a key topic in aluminium research and industry. Many different strategies to understand negative effect natural have been investigated last decades, including analysis thermal pre-treatments considering microalloying elements. From these investigations, vacancy evolution formation clusters containing Mg Si were found be governing mechanisms behind aging. In this work, we present model simulate predict behavior when subjected after solutionizing demonstrate effects routes chemical composition variations. implemented model, excess quenched-in vacancies solute traps are considered. Special emphasis placed on co-cluster its contribution strengthening. The thermokinetic software MatCalc used for simulations results validated by experimental investigation.
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