Strengthening mechanisms of indirect-extruded Mg-Sn based alloys at room temperature

作     者：Wei Li Cheng Quan Wei Tian Hui Yu Hua Zhang Bong Sun You 

作者机构：Key Laboratory of Interface Science and Engineering in Advanced MaterialsMinistry of EducationTaiyuan University of TechnologyTaiyuan 030024China School of Materials Science and EngineeringTaiyuan University of TechnologyTaiyuan 030024China Korea Institute of Materials ScienceChangwon 642-831Republic of Korea 

出 版 物：《Journal of Magnesium and Alloys》 (镁合金学报（英文）)

年 卷 期：2014年第2卷第4期

页      面：299-304页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：This work was supported by National Natural Science Foundation of China(Grant nos.51404166 and 51201112),Shanxi Province Science Foundation for Youths(2013021013-4) Research Project Supported by Shanxi Scholarship Council of China(2014-023) Technological Innovation Programs of Higher Education Institutions in Shanxi(Grant nos.2014120) the Advanced Programs of Department of Human Resources and Social Security of Shanxi Province for Returned Scholars(2013068) 

主　　题：Mg alloys Microstructure Mechanical properties Strengthening mechanism 

摘      要：The strength of a material is dependent on how dislocations in its crystal lattice can be easily *** dislocations create stress fields within the material depending on their intrinsic ***,the following strengthening mechanisms are relevant in wrought magnesium materials tested at room temperature:fine-grain strengthening,precipitate strengthening and solid solution strengthening as well as texture *** indirect-extruded Mg-8Sn(T8)and Mg-8Sn-1Al-1Zn(TAZ811)alloys present superior tensile properties compared to the commercial AZ31 alloy extruded in the same *** contributions to the strengthen of Mg-Sn based alloys made by four strengthening mechanisms were calculated quantitatively based on the microstructure characteristics,physical characteristics,thermomechanical analysis and interactions of alloying elements using AZ31 alloy as benchmark.