Influence of precipitation on the Portevin-Le Chatelier effect in Al-Mg alloys

作     者：Qi Hu,~(a))Qingchuan Zhang,~(b)) Shihua Fu,Pengtao Cao,and Ming Gong CAS Key Laboratory of Mechanical Behavior and Design of Materials,University of Science and Technology of China,Hefei 230027,China 

作者机构：CAS Key Laboratory of Mechanical Behavior and Design of Materials University of Science and Technology of China Hefei 230027 China 

出 版 物：《Theoretical & Applied Mechanics Letters》 (力学快报（英文版）)

年 卷 期：2011年第1卷第1期

页      面：30-33页

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：The financial support received from the National Natural Science Foundation of China under Grant Nos. 10732080 10872189 

主　　题：aluminum alloys Portevin-Le Chatelier effect dynamic strain aging tension test 

摘      要：In the alloy with solute content higher than the limiting solubility,the solute atoms that have failed to dissolve will precipitate from the solid solution and form *** this study, the Portevin-Le Chatelier(PLC) effects in annealed 5456 and 5052 aluminum alloys with different precipitation contents have been investigated under different applied strain *** results suggest that precipitations have significant effect on the PLC effect and the more the precipitations are, the greater the influence ***,the solute diffusion is pipe diffusion in 5052 alloy with lower precipitation ***,for 5456 alloy with higher precipitation content,the diffusion is no longer the case but more complex.