典型文献
Effects of Cu content on microstructure and mechanical properties of rheo-diecasting Al-6Zn-2Mg-xCu alloys
文献摘要：
A systematic study on how Cu content affects the microstructure and mechanical properties of rheo-diecasting Al-6Zn-2Mg-xCu alloys during solution treatment and ageing heat treatment was conducted. The swirled enthalpy equilibrium device (SEED) was adopted to prepare the semi-solid slurry of Al-6Zn-2Mg-xCu alloys. The microstructure development and mechanical properties were studied using optical microscopy (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), as well as hardness and tensile testing. The grain boundary and shape factor were calculated using image processing software (Image-Pro Plus 6.0). Results show that the alloys are composed of typical globular primary α-Al grains, eutectic phases, and smaller secondary α-Al grains. After solution and ageing heat treatment, the eutectic phases are dissolved into Al matrix when the Cu content is lower than 1.5wt.％, while some eutectic phases transform into Al2CuMg (S) phases and remain at grain boundaries when Cu content reaches 2wt.％. T6 heat treatment significantly enhances the mechanical properties of rheo-diecasting Al-6Zn-2Mg-xCu alloys. When Cu concentration is 0.5wt.％-1.5wt.％, the ultimate tensile strength, yield strength and elongation of T6 treated alloys rise to around 500 MPa, 420 MPa, and 18％, respectively.
文献关键词：
中图分类号：
作者姓名：
Zhi-guang Ding;Sai-heng Hou;Song Chen;Ze-hua Liu;Da-quan Li;Jian Feng;Fan Zhang;Li-ming Peng
作者机构：
National Engineering Research Center of Light Alloy Net Forming and Key State Laboratory of Metal Matrix Composites,School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;General Research Institute for Nonferrous Metals,Beijing 101407,China
文献出处：
引用格式：
[1]Zhi-guang Ding;Sai-heng Hou;Song Chen;Ze-hua Liu;Da-quan Li;Jian Feng;Fan Zhang;Li-ming Peng-.Effects of Cu content on microstructure and mechanical properties of rheo-diecasting Al-6Zn-2Mg-xCu alloys)[J].中国铸造,2022(04):321-326
A类：
diecasting,swirled
B类：
Effects,content,microstructure,mechanical,properties,rheo,6Zn,2Mg,xCu,alloys,systematic,study,affects,during,solution,treatment,ageing,heat,was,conducted,enthalpy,equilibrium,device,SEED,adopted,prepare,semi,solid,slurry,development,were,studied,using,optical,microscopy,OM,scanning,electron,ray,diffraction,differential,calorimetry,DSC,well,hardness,tensile,testing,boundary,shape,calculated,image,processing,software,Image,Pro,Plus,Results,show,that,composed,typical,globular,primary,grains,eutectic,phases,smaller,secondary,After,dissolved,into,matrix,when,lower,than,5wt,while,some,transform,Al2CuMg,remain,boundaries,reaches,2wt,T6,significantly,enhances,When,concentration,ultimate,strength,yield,elongation,treated,rise,around,respectively
AB值：
0.495843
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