Materials Reports 2021, Vol. 35 Issue (z2): 456-459 |
METALS AND METAL MATRIX COMPOSITES |
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Effect of Y on As-cast Microstructure and Mechanical Properties of Mg-10Gd-xY-1Zn-0.5Zr (x=1,2) Magnesium Alloy |
HU Jie, CHENG Renju, LI Shangmin,TAN Lei, LI Chunyu, LIU Yun, SONG Jie, YANG Mingbo
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Materials Science and Engineering College, Chongqing University of Technology, Chongqing 400054, China |
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Abstract The effect of Y Content on as cast microstructure and mechanical properties of Mg-10Gd-xY-1Zn-0.5Zr(x=1,2) magnesium alloy was studied. The results show that the microstructure of Mg-10Gd-xY-1Zn-0.5Zr (x=1,2) magnesium alloy is composed of α-Mg,Mg12(Gd,Y)Zn,Mg5-(Gd,Y,Zn) and Mg24(Y,Gd,Zn)5 phases. When the content of Y increases from 1% to 2%, the content of second phases such as Mg12(Gd,Y)Zn and Mg5(Gd,Y,Zn) decreases, while the Mg24(Y,Gd,Zn)5 phases increases.With the increase of Y content, the mechanical pro-perties of the alloy at room temperature are obviously improved. When the Y content is 2%, the as-cast tensile strength, yield strength and elongation are 237 MPa, 189 MPa and 4.6% respectively, which are significantly improved compared with 1%, indicating that Y has obvious advantages in improving the comprehensive properties of magnesium alloy.
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Published: 09 December 2021
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Fund:This work was financially supported by the Technology Innovation and Application Development Project of Chongqing(cstc2020jscx-msxmX0215, cstc2019jscx-mbdxX0031), Open Fund of Key Laboratory of Micro Nano Materials Engineering and Technology in Chongqing University(KFJJ2003). |
About author:: Jie Hu is a postgraduate student in Chongqing University of technology. From September 2015 to June 2019, he obtained B.E. degree in material for ming and control engineering from Chongqing University. At present, he mainly focuses on the research of advanced light alloy materials, focusing on the factors affecting the microstructure and mechanical properties of rare earth magnesium alloy and the influence of heat treatment process on the microstructure and properties of rare earth magnesium alloy. Renju Cheng, researcher and master's supervisor of Chongqing University of technology. Graduated from Chongqing University and obtained a doctor's degree in materials science in December 2010. From December 2008 to December 2009 worked in the University of Sydney in Australia as a joint training of doctoral students. Worked in Chongqing Academy of Science and Technology during January 2011 to December 2019. She is mainly engaged in the basic research and application of magnesium alloy materials. As the project leader or key participants, she has completed or is in the research of more than 20 projects, including National Natural Science Foundation of China, Integrated Demonstration Program of Chongqing, Key Natural Science Foundation of Chongqing and other projects. She has published more than 30 journal papers, authorized 12 patents and won the first prize of Chongqing Science and Technology Progress and so on. |
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