Modelling of Precipitation and Yield Strength in Al-Cu-Mg Alloys
A model has been developed for microstructure evolution and yield strength for Al-Cu-Mg alloys. It considers two types of precipitates, Cu-Mg co-clusters and S phase, with the S phase forming at the expense of the Cu-Mg co-clusters. Precipitation kinetics is described by model using the JMAK type treatments. Strengthening due to Cu:Mg co-clusters and due to S phase are modelled by the modulus strengthening mechanism and the Orowan bypassing mechanism, respectively. The model has been applied to alloys undergone various heat treatments and to alloys with different composition. Good agreement between the predicted and measured yield strength were observed.
Al-Cu-Mg alloys Modelling Precipitation Yield strength
J. L. Yan M. J. Starink
Key Laboratory of Nonferrous Metal Materials and New Processing Technology (Guangxi University),Mini Materials Research Group, School of Engineering Sciences, University of Southampton, Southampton, SO
国际会议
厦门
英文
658-661
2006-11-08（万方平台首次上网日期，不代表论文的发表时间）