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首页> 外文会议>International Conference on Advanced Materials Processing Technologies >THE INFLUENCE OF SILICON ON Mg-RICH LIGHT ALLOYS SYNTHESISED BY MECHANICAL ALLOYING
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THE INFLUENCE OF SILICON ON Mg-RICH LIGHT ALLOYS SYNTHESISED BY MECHANICAL ALLOYING

机译：硅对机械合金化合成的富含Mg的轻合金的影响

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摘要

In this work, two Mg-rich ternary alloys (Mg{sub}88Ti{sub}4Si{sub}7 and Mg{sub}60Ti{sub}10Si{sub}30) were synthesised by mechanical alloying. Phase transformations occurring in the samples as a function of milling time and during subsequent heating were studied by means of x-ray diffraction, scanning electron microscopy, differential scanning calorimetry and electron probe microanalysis. The structure of the ternary ball milled Mg{sub}88Ti{sub}4Si{sub}7 and Mg{sub}60Ti{sub}10Si{sub}30 mixtures was formed by a Mg{sub}2Si intermetallic phase in a Mg matrix and a mixture of Mg{sub}2Si + Ti{sub}5Si{sub}3, respectively. During heating up to 600°C of the Mg{sub}88Ti{sub}4Si{sub}7 sample there was the formation of further Mg{sub}2Si at 380°C, followed by the formation of Ti{sub}5Si{sub}3 at 540°C. The structure of this sample after heating up to 600°C was formed by Mg{sub}2Si + Ti{sub}5Si{sub}3 in a Mg matrix. In the case of the Mg{sub}60Ti{sub}10Si{sub}30 sample, a grain size increase of the intermetallic phases Mg{sub}2Si and Ti{sub}5Si{sub}3 occurred during heating. No decomposition these intermetallic phases was detected during cooling.
机译：在这项工作中，两个富含Mg的三元合金（Mg {子} 88Ti {子} 4SI {子} 7和Mg {子} 60Ti {子} 10Si {子} 30）通过机械合金化合成。样品作为研磨时间函数的和随后的加热期间中发生相变，通过X射线衍射等方法研究，扫描电子显微镜，差示扫描量热法和电子探针显微分析。三元球的结构研磨镁{子} 88Ti {子} 4SI {子} 7和Mg {子} 60Ti {子} 10Si {子} 30分的混合物是由镁{子} 2SI金属间相在Mg基体形成和Mg {子} 2SI +钛{子} 5SI {子} 3，分别的混合物。在加热到所述Mg {子} 88Ti {子} 4SI {子} 7样品的600℃有进一步的Mg {子} 2SI的在380℃下形成，其次是钛{子} 5SI {的形成子} 3在540℃。该样品的加热到600℃后的结构由镁{子} 2SI +钛{子} 5SI {子} 3在Mg基体形成的。在所述Mg {子} 60Ti {子} 10Si {子} 30样品，所述金属间相的Mg {子} 2SI和Ti {子} 5SI {副}加热期间发生3的晶粒尺寸增加的情况下。不分解的冷却过程中检测到这些金属间相。

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