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Investigation on the icosahedral quasicrystal phase in Mg70.8Zn28Nd1.2 alloy ZHOU Cuilan1,LIANG Wei1,HAN Fuyin1,XU Chunxiang1,YAN Jie1,ZHANG Jinshan1 (1.College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China) Abstract:Mg70.8Zn28Nd1.2 (mole fraction) alloy containing icosahedral quasicrystal phase (I-phase) was prepared under conventional metal......
Effect of Mg-based spherical quasicrystal on microstructures and mechanical properties of ZA54 alloy ZHANG Jin-shan(张金山)1, ZHANG Yong-qing(张永青)1, ZHANG Yan(张 焱)1, XU Chun-xiang(许春香)1, WANG Xiao... properties of ZA54 alloy reinforced by icosahedral quasicrystal phase (I-phase) particles were studied. Except α-Mg, φ-phase and τ-phase, MgZnYMn I-phase particles can be obtained in ZA54-based composites......
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of the change of Gibbs free energy during the primary solidification for the icosahedral quasicrystal phase and itsapproximant crystal phase are proposed. The thermodynamic analyses show that the icosahedral quasicrystal phase solidi-fies as a primary stable phase when temperature is higher than 938 K. Below 938 K, its approximant crystal phase e-merges. Key words: thermodynamic analyses......