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Microstructure and tensile properties of as-extruded Mg–Li–Zn–Gd alloys reinforced with ic

 

论文名称

Microstructure and tensile properties of as-extruded Mg–Li–Zn–Gd alloys reinforced with icosahedral quasicrystal phase

发表期刊名称

Materials and Design

简介

Mg–Li–Zn–Gd alloys reinforced with icosahedral quasicrystal phase (I-phase) were prepared by casting and deformed by hot extrusion. The microstructure and tensile properties of as-extruded Mg–Li–Zn–Gd alloys were investigated. It is found that I-phase formed in as-cast Mg–Li–Zn–Gd alloys and was broken into small particles during extrusion. After hot extrusion, both α-Mg and β-Li phases were elongated along the extrusion direction. Dynamic recrystallization occurred in as-extruded Mg–Li–Zn–Gd alloys. Compared with Mg–9Li (L9) alloy, the improvement in mechanical properties especially the tensile strength of the as-extruded Mg–Li–Zn–Gd alloys was mainly ascribed to the formation of I-phase and their volume fraction. Moreover, the finely recrystallized grain structure can also attribute to the strength enhancement of the alloy.

图片

发表时间

20152

影响因子

3.501

完成人

Yang Zhang, Jie Zhang, Guohua Wu, Wencai Liu, Liang Zhang, Wenjiang Ding

联系人

吴国华

电话

13671800698

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