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| 1 | Strain hardening behavior of Mg-Y alloys after extrusion process显示文摘The strain hardening is an effective mode of enhancing mechanical properties in alloys.In this work,the strain hardening behaviors of Mg-xY(x=1,2,and 3 wt%)after extrusion process was investigated using uniaxial tensile tests.Results suggest that the Mg-xY alloys are composed ofα-Mg with a little amount of Mg24Y5 phase.The average grain size reduces from 19.8μm to 12.2μm as the Y content adds from 1 wt%to 2 wt%.Nevertheless,when Y content reaches 3 wt%,the grain size reaches to 12.9μm,which is close to that of Mg-2Y.The strain hardening rate decreases from 883 MPa to 798 MPa at(σ-σ0.2)=40 MPa,and Mg-2Y and Mg-3Y have the similar strain hardening response.Moreover,Mg-1Y shows an obvious ascending stage after the steep decreasing stage,which is mainly caused by the activation of twinning.The strain hardening behavior of Mg-xY is explained based on understanding the roles of the deformation mechanisms via deformation microstructure analysis and Visco-Plastic Self Consistent(VPSC)model.The variation of strain hardening characteristics with increasing Y content is related to the effects of grain size and texture. | Chaoyue Zhao Ziyan Li Jiahui Shi Xianhua Chen Teng Tu Zhu Luo Renju Cheng Andrej Atrens Fusheng Pan | 2019 | Journal of Magnesium and Alloys2019，7，4： | 6 |
| 2 | Effect of Sr addition on the grain refinement of AZ31 magnesium alloys显示文摘The grain refinement mechanisms of Sr in the AZ31 magnesium alloys were studied by both phase diagram calculation and experimental analysis.The influence of Sr content on the solute distribution coefficients of Al and Zn during solidification was investigated in order to find out whether Sr addition can enhance the grain refinement efficiency brought by Al and Zn.The results showed that Sr addition can promote the segregation in liquid phases for both Al and Zn during solidification,therefore enhance the grain refinement effects by Al and Zn in AZ31 magnesium alloys.And the effect of Sr addition on the solute distribution coefficients for Al is larger than that of Zn.Sr addition can improve the GRF values by itself and also improve the GRF values of Al and Zn to the AZ31 magnesium alloys,and the grains are refined consequently. | Renju Cheng Fusheng Pan Shan Jiang Cheng Li Bing Jiang Xianquan Jiang | 2013 | Progress in Natural Science:Materials International2013，23，1： | 2 |
| 3 | Effects of minor Ca addition on as-cast microstructure and mechanical properties of Mg–4Y–1.2Mn–1Zn (wt.%) magnesium alloy显示文摘 | Mingbo Yang Chengyu Duan Renju Cheng Fusheng Pan Hongjun Hu | 2013 | Journal of Alloys and Compounds2013，，： | 1 |
| 4 | Comparation about efficiency of Al–10Sr and Mg–10Sr master alloys to grain refinement of AZ31 magnesium alloy显示文摘 | Mingbo Yang Fusheng Pan Renju Cheng Aitao Tang | 2007 | Journal of Materials Science2007，，24： | 1 |
| 5 | Effects of vari- ous Mg- Sr master alloys on micro- structural refinement of ZK60 magnesium alloy 显示文摘 | Cheng Renju Pan Fusheng Yang Mingbo | 2008 | Trans Nonferrous Met Soc China2008，18，： | 1 |
| 6 | Comparation about efficiency of Al–10Sr and Mg–10Sr master alloys to grain refinement of AZ31 magnesium alloy显示文摘 | Mingbo Yang Fusheng Pan Renju Cheng Aitao Tang | 2007 | Journal of Materials Science2007，，24： | 1 |
| 7 | Effects of A1- 10Sr master alloys on grain refinement of AZ31 magnesium al- loy 显示文摘 | Yang Mingbo Pan Fusheng Cheng Renju | 2008 | Transactions of Nonferrous Metals Society of China2008，，18： | 1 |
| 8 | Effect of semi-solid isothermal heat treatment on the microstructure of Mg–6A1–1Zn–0.7Si alloy显示文摘 | Yang Mingbo Pan Fusheng Cheng Renju Bai Liang | 2007 | Journal of Materials Processing Tech2007，，1： | 1 |
| 9 | Effect of Mg–10Sr master alloy on grain refinement of AZ31 magnesium alloy显示文摘 | Mingbo Yang Fusheng Pan Renju Cheng Aitao Tang | 2008 | Materials Science & Engineering A2008，，1： | 1 |
| 10 | Effects of vari- ous Mg-Sr master alloys on microstructural refinement of ZK60 magnesium alloy 显示文摘 | Cheng Renju Pan Fusheng Yang Mingbo | 2008 | Transactions of Nonferrous Metals Soci- ety of China2008，18，1： | 1 |
| 11 | Effect of Mg-10Sr master alloy on grain refinement of AZ31 magnesium alloy 显示文摘 | Yang Mingbo Pan Fushcng Cheng Renju | 2008 | Materials Science and Engineering A2008，491，3： | 1 |
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