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Trans. Nonferrous Met. Soc. China 25(2015) 3936-3943 Effect of applied pressure on microstructure and mechanical properties of Mg-Zn-Y quasicrystal-reinforced AZ91D magnesium matrix composites... 26 July 2015 Abstract: The Mg-Zn-Y quasicrystal-reinforced AZ91D magnesium matrix composites were prepared by squeeze casting process. The effects of applied pressure on microstructure and mechanical......
,并在Ti_(40)Zr_26.7Ni_(20)Pd_(13.3)合金中生成了单一C14相.结果表明,添加中等尺寸的Pd原子有利于提高Ti-Zr-Ni合金的原子密堆性,使合金趋于生成高配位数的Laves相,这种相的Fermi面与Brillouin区的相互作用不显著,偏离了电子相的稳定机制. 关键词:准晶; Ti-Zr-Ni合金; Pd添加; Laves相; quasicrystal; Ti-Zr......
at room-temperature was studied. The results showed that the microstructure of Mg-8Zn-1Y alloy solidified under ambient pressure and super-high pressure was both mainly composed of ■-Mg and quasicrystal... phase(quasicrystal I-Mg3Zn6Y) was transformed from continuous network(ambient pressure) to long island(high pressure) and finally to granular(super-high pressure) with the increase in pressure......
at room-temperature was studied. The results showed that the microstructure of Mg-8Zn-1Y alloy solidified under ambient pressure and super-high pressure was both mainly composed of ■-Mg and quasicrystal... phase(quasicrystal I-Mg3Zn6Y) was transformed from continuous network(ambient pressure) to long island(high pressure) and finally to granular(super-high pressure) with the increase in pressure......
and formation process of icosahedral quasicrystal phase have been investigated in a melt-spun Al-18 Mn alloy(in wt%).Three distinct layers corresponding to varying temperature gradient have been......
)quasicrystal; particle reinforced composites; stirring casting; mechanical property; [全文内容正在添加中] ......
by conventional casting, and the microstructure of the alloys was studied by multiple means. Icosahedral quasicrystal phases are observed in all alloys. The different Gd/Y atomic ratios affect the microstructures......
Microstructure and mechanical properties of AZ31 magnesium alloy reinforced by I-phaseHai-Rong Wu,Wen-Bo Du,Shu-Bo Li,Ke Liu,Zhao-Hui WangSchool of Materials Science and Engineering,Beijing University of Technology摘 要:The particles of Mg-Zn-Gd icosahedral quasicrystal master alloy were added into the AZ31 alloy by the repeated plastic working(RPW......
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-phase),W-phase and Mg 7 Zn 3 phase in Mg 44 Zn 44 Gd 12 alloy were investigated.The results indicated that the I-phase in Mg 44 Zn 44 Gd 12 alloy was a face-centered icosahedral quasicrystal......