Influence of Y/Zn Mole Ratio on the Phase Composition and Mechanical Properties of Mg-Y-Zn Alloys
作者： Huan Liu , Feng Xue , Jing Bai , Jian Zhou
DOI: 10.1007/978-3-319-48764-9_161
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摘要: The influence of Y/Zn mole ratio on the phase composition and mechanical properties Mg-Y-Zn alloys has been investigated. results show that with decrease ratio, Mg24Y5, 18R-LPSO W-phase are developed in sequence. Homogenized at 773 K for 12 h, were then extruded 723 extrusion 9. tensile tests have performed strengthening effects different phases exhibit following tendency: LPSO + Mg24Y5 > W-phase. Mg97Y2Zn1 alloy exhibits optimal comprehensive UTS 320 MPa elongation 11% room temperature. And Mg95Y4Zn1 superior elevated temperatures, 330 MPa, 7.2% 252 27.1% 473 573 K, respectively.
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