首页> 外文会议>Pacific Rim International Conference on Advanced Materials and Processing(PRICM 5) pt.5 >Glass Forming Ability in Amorphous Ti_(50)Cu_(35-x)Ni_(15)Sn_x Alloys Prepared by Mechanical Alloying
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Glass Forming Ability in Amorphous Ti_(50)Cu_(35-x)Ni_(15)Sn_x Alloys Prepared by Mechanical Alloying

机译:机械合金化制备的非晶Ti_(50)Cu_(35-x)Ni_(15)Sn_x合金的玻璃形成能力

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In the present study, amorphous ti_(50)cu_(35-x)ni_(15)sn_x (x=0~7) alloy powders were synthesized by mechanical alloying technique, the amorphization behavior of ti_(50)cu_(28)ni_(15)sn_x sn_7 alloy powders was examined in details by scanning electron microscopy, differential scanning calorimeter, x-ray diffraction, and synchrotron x-ray absorption spectroscopy. the results show that fully amorphous powders formed after 7 hours of milling.The thermal stability of the ti_(50)cu_(35-x)Ni_(15)sn_x amorphous powders was investigated by differential scanning calorimeter. The amorphous ti_(50)cu_(35-x)Ni_(15) powders (i.e., x=0) exhibit no glass transition behavior. However, the amorphous ti_(50)cu_(35-x)Ni_(15)sn_x (x=3~7) powders were found to exhibit a supercooled liquid region before crystallization. Amorphous alloy powders exhibits a wide supercooled liquid region of 61 K.
机译:本研究采用机械合金化技术合成了非晶态ti_(50)cu_(35-x)ni_(15)sn_x(x = 0〜7)合金粉末,ti_(50)cu_(28)ni_的非晶化行为(15)sn_x sn_7合金粉末通过扫描电子显微镜,差示扫描量热仪,x射线衍射和同步辐射x射线吸收光谱法进行了详细检查。结果表明,在研磨7小时后形成了完全无定形的粉末。 用差示扫描量热仪研究了ti_(50)cu_(35-x)Ni_(15)sn_x非晶态粉末的热稳定性。非晶态ti_(50)cu_(35-x)Ni_(15)粉末(即x = 0)没有玻璃化转变行为。然而,无定形的ti_(50)cu_(35-x)Ni_(15)sn_x(x = 3〜7)粉末在结晶前显示出过冷的液体区域。非晶态合金粉末具有61 K的宽过冷液体区域。

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