Al_Mg_Si合金滑移面结合及位错运动机制.pdf

第 20卷 第 2期 重 庆 工 学 院 学 报 2006年 2月 Vol. 20 No. 2 Journal of Chongqing Institute ofTechnology Feb. 2006 * A l- Mg- i 王庆松, 秦海青, 王 娜, 高英俊 ( , 530004) : ( EET ) , A l- M g- i GP( L1 , ) (M g i) 0 2 , : GP A l 1. 36 3. 32, , . : A l- M g- i; ; : TG111 : A : 1671- 0924(2006) 02- 0052- 05 The Bond betw een Sliding Faces and th eM echan ism of D islocation M ovem en t of A lM gSi A lloy s WANG Q ingsong, QIN H aiq ing, WANG Na, GAO Y ingjun ( College of Physical cience and Engineering Technology, Guangxi University, Nann ing 530004, Ch ina) Abs tract: This paper calcu lates the whole valence bonding pow er bewt een adjacent slid ing faces of the GP zonesw ith model L10 and phase(Mg i) in A l- Mg- i alloys according to the empirical electron 2 theory ( EET ) of solid. The resu lts show that thew hole valence bond ing pow er bewt een adjacent slid ing faces of the GP zones and phase are respectively 1. 36 and 3. 32 tmi es of that ofm atrix A l, wh ich can be used to explain reasonably the inside causes for the hardness ofGP zones and phasealloy hardened or strengthened asw ell as different interaction mechanism w ith dislocation. Keywords: A l- Mg- i alloy; slidingface; d islocation 0 Mg/ i 2 [ 5- 8] , Mg i 1 , GPA Ml g i, , A l- Mg- i, 4 6